15380( 6) - 09-Oct-2017 15:40:31 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15380 Version: 6 Check-in Time: 09-Oct-2017 15:40:31 STScI Edit Number: 1 Title Hunting the successive auroral response of Uranus and Neptune to unexpected powerful heliospheric disturbances ------------------------------------------------------------------------------------ Type Cycle GO/DD 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Laurent Lamy Observatoire de Paris - Section de Meudon Y CoI: Dr. Renee Prange Observatoire de Paris - Section de Meudon N CoI: Dr. Chihiro Tao National Institute of Information and Com. N Technology (NICT) CoI: Dr. Nikolai Pogorelov University of Alabama in Huntsville N CoI: Dr. Tae Kim University of Alabama in Huntsville N CoI: Prof. Mathieu Barthelemy Universite de Grenoble I N CoI: Dr. Jean-Ives Chaufray LATMOS N CoI: Dr. Lorenz Roth Royal Institute of Technology N ------------------------------------------------------------------------------------ Abstract An exceptional coronal mass ejection (CME) associated with a X9.3 class solar flare - the most intense one for the past 12 years - departed from the Sun on 6 Sept. 2017, leading a series of powerful CMEs ejected from the same solar active region in the following days. These wide and fast propagating interplanetary shocks were directed toward the Earth, Uranus and Neptune which currently orbit at comparable solar longitudes. The first CME reached Earth on Sept. 7 and triggered a severe geomagnetic storm and intense aurora (Kp index = 8) for a couple of days. Previous successful HST observations revealed that the Uranian aurorae observed near equinox respond to powerful solar wind conditions, while Neptune's aurorae (never observed yet with HST) are expected to respond at least similarly, if not (much) more. By numerically propagating near-Earth solar wind measurements with MHD models, we predict the arrival of the first shock at Uranus around 1st Oct. and at Neptune around 1st Nov, with unusually large pressure amplitudes (0.025 and 0.015 nPa resp.) never sampled yet. These extreme active solar wind conditions and ideal solar system configuration brings a unique chance to HST to both catch Uranus aurorae under an intriguing equinox-to-solstice magnetospheric geometry and detect those of Neptune in a frame of comparative planetology. ------------------------------------------------------------------------------------ Observations Description ------------------------ Uranus will be observed through a sequence of 7 HST orbits distributed along approximately a week sampling the arrival at Uranus of an interplanetary shock, so far predicted to reach the planet on 31 Oct. 2014. The arrival time of the interplanetary shock will be checked (and further refined) by iterative runs of robust MHD propagation codes. The proposed observations will consist of 6 STIS orbits, with TIME-TAG imaging using the clear and SRF2 filters, and 1 COS orbit, with TIME-TAG spectroscopy using the FUV G140L gratings. STIS will track the reflected solar emission, airglow and auroral emissions. COS will additionally attempts to detect 15380( 6) - 09-Oct-2017 15:40:31 - [ 2] atmospheric absorption or emission by hydrocarbons. We request the COS orbit to imediatly follow or preceed one STIS orbit, to help the analysis of COS spectra with STIS images. ------------------------------------------------------------------------------------ 15380( 6) - 09-Oct-2017 15:40:31 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 TARGET NAME: NEPTUNE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET PLANET NEPTUNE ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=NEPTUNE ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS NOT ECL P PARTIAL OF NEPTUNE BY TRITON FROM EARTH ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 7.8 +/- 0.5 Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 15380( 6) - 09-Oct-2017 15:40:31 - [ 4] Visit: 01 (URANUS) Visit Requirements: BETWEEN 20-SEP-2017:00:00:00 AND 01-NOV-2017:00:00:00; VISIBILITY INTERVAL 51 M On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2533 S) Comments: A POS TARG of -3arcsec 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 25MAMA MIRROR none none none none 1 2533.0 S -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 5] Visit: 02 (URANUS) Visit Requirements: BETWEEN 22-SEP-2017:00:00:00 AND 01-NOV-2017:00:00:00; VISIBILITY INTERVAL 51 M On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2533 S) Comments: A POS TARG of -3arcsec 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 25MAMA MIRROR none none none none 1 2533.0 S -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 6] Visit: 03 (URANUS) Visit Requirements: BETWEEN 22-SEP-2017:00:00:00 AND 01-NOV-2017:00:00:00; VISIBILITY INTERVAL 51 M On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2533 S) Comments: A POS TARG of -3arcsec 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 25MAMA MIRROR none none none none 1 2533.0 S -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 7] Visit: 04 (URANUS) Visit Requirements: BETWEEN 22-SEP-2017:00:00:00 AND 13-NOV-2017:00:00:00; VISIBILITY INTERVAL 51.5 M On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 URANUS STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2563 S) Comments: A POS TARG of -3arcsec 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 25MAMA MIRROR none none none none 1 2563.0 S -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 8] Visit: 05 (NEPTUNE) Visit Requirements: BETWEEN 20-OCT-2017:00:00:00 AND 20-NOV-2017:00:00:00 On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE STIS/FUV TIME-TA F25SRF2 MIRROR BUFFER-TIME=100 1 900 S POS TARG null, -3 -MAMA G see below (1000 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 1325 S POS TARG null, -3 -MAMA G (1325 S) Comments: A POS TARG of -3arcsec 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 | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 STIS/FUV TIME-TA F25SRF2 MIRROR none none none none 1 1000.0 S -MAMA G NEPTUNE 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 9] Visit: 06 (NEPTUNE) Visit Requirements: BETWEEN 20-OCT-2017:00:00:00 AND 20-NOV-2017:00:00:00 On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE STIS/FUV TIME-TA F25SRF2 MIRROR BUFFER-TIME=100 1 900 S (900 POS TARG null, -3 -MAMA G S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 1425 S POS TARG null, -3 -MAMA G (1425 S) Comments: A POS TARG of -3arcsec 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 | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 STIS/FUV TIME-TA F25SRF2 MIRROR none none none none 1 N/A -MAMA G NEPTUNE 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 10] Visit: 07 (NEPTUNE) Visit Requirements: BETWEEN 20-OCT-2017:00:00:00 AND 20-NOV-2017:00:00:00 On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE STIS/FUV TIME-TA F25SRF2 MIRROR BUFFER-TIME=100 1 900 S (900 POS TARG null, -3 -MAMA G S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 1425 S POS TARG null, -3 -MAMA G (1425 S) Comments: A POS TARG of -3arcsec 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 | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 STIS/FUV TIME-TA F25SRF2 MIRROR none none none none 1 N/A -MAMA G NEPTUNE 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 11] Visit: 08 (NEPTUNE) Visit Requirements: BETWEEN 20-OCT-2017:00:00:00 AND 20-NOV-2017:00:00:00 On Hold Comments: Additional Comments: The filter and integration times are similar to those used in proposal 14036. Please expand exposure time if possible. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE STIS/FUV TIME-TA F25SRF2 MIRROR BUFFER-TIME=100 1 900 S (900 POS TARG null, -3 -MAMA G S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=100 1 1425 S POS TARG null, -3 -MAMA G (1425 S) Comments: A POS TARG of -3arcsec 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 | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 STIS/FUV TIME-TA F25SRF2 MIRROR none none none none 1 N/A -MAMA G NEPTUNE 2 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G 15380( 6) - 09-Oct-2017 15:40:31 - [ 12] Summary Form for Proposal 15380 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 25MAMA, F25SRF2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=100 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 20-OCT-2017:00:00:00 AND 20-NOV-2017:00:00:00, BETWEEN 20-SEP-2017:00:00:00 AND 01-NOV-2017:00:00:00, BETWEEN 22-SEP-2017:00:00:00 AND 01-NOV-2017:00:00:00, BETWEEN 22-SEP-2017:00:00:00 AND 13-NOV-2017:00:00:00, POS TARG null, -3, VISIBILITY INTERVAL 51 M, VISIBILITY INTERVAL 51.5 M ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names NEPTUNE, URANUS ------------------------------------------------------------------------------------------------------------------------------------