12601( 9) - 23-Nov-2011 16:20:56 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12601 Version: 9 Check-in Time: 23-Nov-2011 16:20:56 STScI Edit Number: 0 Title HST STIS/ACS observations of the aurorae of Uranus during active solar wind conditions ------------------------------------------------------------------------------------ Type Cycle GO 19 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Laurent Lamy Observatoire de Paris - Section de Meudon CoI: Dr. Renee Prange Observatoire de Paris - Section de Meudon N CoI: Prof. John T. Clarke Boston University N CoI: Dr. Graziella Branduardi-Raymont University College London N CoI: Dr. Kenneth C. Hansen University of Michigan N CoI: Dr. G. Randall Gladstone Southwest Research Institute N CoI: Dr. Philippe Zarka Observatoire de Paris - Section de Meudon N CoI: Dr. Baptiste Cecconi Observatoire de Paris - Section de Meudon N CoI: Dr. Nicolas Andre CNRS - Centre d'Etude Spatiale des N Rayonnements CoI: Dr. Jean Aboudarham Observatoire de Paris N CoI: Prof. Mathieu Barthelemy Universite de Grenoble I N CoI: Dr. Nicholas Achilleos University College London N CoI: Dr. Patrick Guio University College London N CoI: Prof. Michele Dougherty Imperial College of Science Technology and N Medicine CoI: Dr. Jonathan D. Nichols University of Leicester N CoI: Dr. Tom Stallard University of Leicester N CoI: Dr. Henrik Melin University of Leicester N CoI: Prof. Stanley W. Cowley University of Leicester N ------------------------------------------------------------------------------------ Abstract The UV aurorae of Uranus, suspected in IUE observations (1982-1986), were only unambiguously identified during the Voyager 2 flyby (1986). Their peculiar properties relate to the atypical magnetosphere of Uranus, which is characteristic of ice giants. In contrast with the solstice configuration prevailing in the 1980s, that only allowed the northern magnetic pole to be visible from Earth, the situation is now radically different and near-equinoctial conditions allow views of both northern (N) and southern (S) poles transiting across the visible disc, implying a dynamic magnetospheric configuration that has never been studied. We therefore propose to re-attempt to observe the UV aurorae of Uranus with HST spectroscopic (STIS) and imaging (ACS) measurements. We will maximize the probability of detection by scheduling observations of Uranus during a solar wind shock interaction, known to activate auroral activity at other planets. Observations will be distributed over 14 days, centered on the predicted arrival time, and sampling all longitudes. They will characterize the UV aurorae, determine their brightness (and infer the energy of precipitating electrons), their location and their temporal variability up to half a solar rotation. Importantly, it will also permit us to retrieve the rotational phase of the planet and update the rotation period (17.24h). Observations during an interplanetary shock and comparisons with Voyager 2 and previous unsucessful HST observations will finally provide the first insights into the sun/magnetosphere interaction, and highlight its difference with the interaction at the other known 12601( 9) - 23-Nov-2011 16:20:56 - [ 2] magnetospheres. ------------------------------------------------------------------------------------ Observations Description ------------------------ Uranus will be observed through a sequence of 16 HST orbits distributed along 14 days (half a solar rotation), scheduled just after Uranus opposition (26 Sept. 2011) around the planned arrival time of an interplanetary shock. These observations will be scheduled more than 1 month in advance in the HST observing program. The arrival time of the interplanetary shock will be accurately predicted from robust MHD propagation codes. HST orbits will be distributed 14 days with 2 groups of orbits. (1) 10 orbits will scan a core window covering 7 days (9.5 Uranian periods) centered on the predicted arrival time, among which 8 orbits will be placed every ~1.2 planetary periods, and 2 orbits will be added close to the center of the interval with a spacing of ~0.3 planetary periods. (2) 6 orbits will scan 7 days out of the core window (orange), spaced by ~1.8 periods. The total sequence will thus provide a continuous sampling of a full planetary rotation and a regular coverage of all Uranian longitudes over half a solar rotation. To take advantage of both the STIS spectroscopic capability and of the ACS SBC imaging high sensitivity, the HST orbits will be alternately dedicated to STIS measurements (images and spectra) and to ACS SBC observations (images only). If one instrument is not operating normally, observations can be done with the other one. The spectra will be acquired by STIS with the G140L gratings and large slit of 2x52 arcsec. The images will provide the spatial distribution of auroral Ly? (121.6 nm) and H2 Lyman bands (115-165 nm). Images will be obtained by STIS and ACS SBC, using MAMA and F115LP (clear), as well as FSRF2 and F125LP (Ly? blocker) filters. To minimize contamination by geocoronal background brightness at Ly?, clear images will be taken during the portion of the orbit when HST is in shadow, and filtered images otherwise. In addition, geocoronal contribution will be minimized by observing close to opposition. Real Time Justification ----------------------- This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. This program will be conducted in combination with other observations (see proposal). Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12601( 9) - 23-Nov-2011 16:20:56 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: URANUS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET PLANET URANUS ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=URANUS ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 5.73 +/- 0.5 Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 12601( 9) - 23-Nov-2011 16:20:56 - [ 4] Visit: 01 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 01 needs to be scheduled at t0-(6.75+/-0.15) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 5] Visit: 02 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 02 needs to be scheduled at t0-(5.55+/-0.15) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 6] Visit: 03 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 03 needs to be scheduled at t0-(4.35+/-0.15) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 7] Visit: 04 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 04 needs to be scheduled at t0-(3.15+/-0.1) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 8] Visit: 05 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 05 needs to be scheduled at t0-(2.25+/-0.1) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 9] Visit: 06 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 06 needs to be scheduled at t0-(1.35+/-0.1) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 10] Visit: 07 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 07 needs to be scheduled at t0-(0.45+/-0.1) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 11] Visit: 08 Visit Requirements: BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00; ON HOLD On Hold Comments: Visit 08 needs to be scheduled at t0-(0.15+/-0.05) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 12] Visit: 09 Visit Requirements: ON HOLD On Hold Comments: Visit 09 needs to be scheduled at t0+(0.15+/-0.05) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 13] Visit: 10 Visit Requirements: ON HOLD On Hold Comments: Visit 10 needs to be scheduled at t0+(0.45+/-0.1) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 14] Visit: 11 Visit Requirements: ON HOLD On Hold Comments: Visit 11 needs to be scheduled at t0+(1.35+/-0.1) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 15] Visit: 12 Visit Requirements: ON HOLD On Hold Comments: Visit 12 needs to be scheduled at t0+(2.25+/-0.1) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 16] Visit: 13 Visit Requirements: ON HOLD On Hold Comments: Visit 13 needs to be scheduled at t0+(3.15+/-0.1) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 17] Visit: 14 Visit Requirements: ON HOLD On Hold Comments: Visit 14 needs to be scheduled at t0+(4.35+/-0.15) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 18] Visit: 15 Visit Requirements: ON HOLD On Hold Comments: Visit 15 needs to be scheduled at t0+(5.55+/-0.15) days Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS ACS/SBC ACCUM SBC F140LP 2 450 S POS TARG -3, null Comments: Expand exposure time if possible. A POS TARG of -3 arcsec in AXIS1 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS ACS/SBC ACCUM SBC F115LP 3 400 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 URANUS ACS/SBC ACCUM SBC F165LP 1 360 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 ACS/SBC ACCUM SBC F140LP none none 1 none 1 N/A URANUS 1 ACS/SBC ACCUM SBC F140LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 1 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 2 none 1 N/A URANUS 2 ACS/SBC ACCUM SBC F115LP none none 3 none 1 N/A URANUS 3 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A 12601( 9) - 23-Nov-2011 16:20:56 - [ 19] Visit: 16 Visit Requirements: ON HOLD On Hold Comments: Visit 16 needs to be scheduled at t0+(6.75+/-0.15) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 20] Visit: 17 Visit Requirements: On Hold Comments: Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. Copy of visit 2. Automatic repeat Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 21] Visit: 18 Visit Requirements: ON HOLD On Hold Comments: Visit 10 needs to be scheduled at t0+(0.45+/-0.1) days. Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. copy of visit 10 to be a HOPR repeat Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 22] Visit: 19 Visit Requirements: On Hold Comments: Additional Comments: This program requires observing Uranus (a weak FUV source) within a 14 days-long window centered on on the time t0 of enhanced solar wind activity at Uranus, that will be predicted by the observers >1 month in advance. Additionally, this window will be scheduled as close as possible from opposition, within 1 month to minimize the geocoronal background. HOPR repeat of visit 14. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 52X2 G140L 1425 BUFFER-TIME=200 1 1100 S -MAMA G Comments: Expand exposure time if possible. ------------------------------------------------------------------------------------------------------------------------------------ 2 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=200 1 1000 S POS TARG null, -3 -MAMA G Comments: A POS TARG of -3 arcsec in AXIS2 will move Uranus' signal away from the repeller wire shadow. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ URANUS 1 STIS/FUV TIME-TA 52X2 G140L 1425 none none none none 1 N/A -MAMA G URANUS 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 12601( 9) - 23-Nov-2011 16:20:56 - [ 23] Summary Form for Proposal 12601 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 25MAMA, 52X2, SBC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC, STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=200 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-OCT-2011:00:00:00 AND 15-NOV-2011:00:00:00, ON HOLD , POS TARG -3, null, POS TARG null, -3, SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F115LP, F140LP, F165LP, G140L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names URANUS ------------------------------------------------------------------------------------------------------------------------------------