16313( 12) - 17-Nov-2020 13:07:26 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16313 Version: 12 Check-in Time: 17-Nov-2020 13:07:26 STScI Edit Number: 5 Title Tracking the Uranian magnetosphere between solstice and equinox and the inner rotation rate of the planet ------------------------------------------------------------------------------------ Type Cycle GO 28 ------------------------------------------------------------------------------------ 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. Tae Kim University of Alabama in Huntsville N CoI: Dr. Chihiro Tao National Institute of Information and Com. N Technology (NICT) CoI: Dr. Lorenz Roth Royal Institute of Technology N CoI: Dr. Melissa A. McGrath SETI Institute N CoI: Abigail Rymer The Johns Hopkins University Applied N Physics Laboratory ------------------------------------------------------------------------------------ Abstract This proposal aims at bringing our understanding of the Uranian magnetosphere, as the archetype of twin ice giant asymmetric magnetospheres, a step forward before the end of HST lifetime. We propose to track the UV (H and H2) aurorae of Uranus with STIS imaging at next opposition, while the planet lies between equinox and solstice. The observations will be carefully scheduled to sample variable solar wind conditions predicted by robust MHD codes throughout a validated methodology. The aurorae, predicted to be brighter and more spatially elongated than near equinox, will sample the ununderstood equinox-to-solstice configuration of the Uranian magnetosphere and the dynamical evolution from equinox to northern winter solstice. Such observations are crucial to resample and update the inner planetary rotation rate, a key parameter for understanding the planetary interior, and to define a valid SIII longitude system which will be required for any future spatial exploration of the planet. For this purpose, the aurorae will be accurately fitted by magnetic field models and cross-compared to the position of the magnetic poles derived previously to constrain the rotation rate at unprecedented accuracy. ------------------------------------------------------------------------------------ Observations Description ------------------------ This proposal requests a sequence of 9 STIS imaging orbits distributed in three groups scheduled close to next opposition on 31 Oct. 2020. They will be divided in three groups of three orbits which will sample variable solar wind conditions predicted enough in advance. Two groups will sample intervals of high dynamic pressures (compressed state of the magnetosphere) and one group will sample quiet solar wind (relaxed state of the magnetosphere). The methodology employed to predict solar wind conditions at Uranus will be identical to that developed for past similar GO programs. The proposed observtions will consist of 9 STIS orbits, with TIME-TAG imaging using the clear and SRF2 filters. ------------------------------------------------------------------------------------ 16313( 12) - 17-Nov-2020 13:07:26 - [ 2] 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 ------------------------------------------------------------------------------------------------------------------------------------ 16313( 12) - 17-Nov-2020 13:07:26 - [ 3] Visit: 01 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 F25SRF2 MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2503 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 F25SRF2 MIRROR none none none none 1 2503.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 4] Visit: 02 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2473 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 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 5] Visit: 03 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 F25SRF2 MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2473 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 F25SRF2 MIRROR none none none none 1 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 6] Visit: 04 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2503 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 2503.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 7] Visit: 05 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2522 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 2522.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 8] Visit: 06 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2473 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 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 9] Visit: 07 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2473 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 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 10] Visit: 08 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 F25SRF2 MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2473 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 F25SRF2 MIRROR none none none none 1 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 11] Visit: 09 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2503 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 2503.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 12] Visit: 10 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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. HOPR repeat of visit 03 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 (2473 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 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 13] Visit: 11 (URANUS) Visit Requirements: BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 (2473 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 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 14] Visit: 12 (URANUS) Visit Requirements: AFTER 11 BY 0.8 Orbits TO 1.2 Orbits; BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00; 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 F25SRF2 MIRROR BUFFER-TIME=100 1 2670 S POS TARG null, -3 -MAMA G see below (2473 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 F25SRF2 MIRROR none none none none 1 2473.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 15] Visit: 13 (URANUS) Visit Requirements: BETWEEN 06-DEC-2020:00:00:00 AND 08-DEC-2020; BETWEEN 16-DEC-2020 AND 17-DEC-2020; 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. HOPR copy of visit 09 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 (2503 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 2503.0 S -MAMA G 16313( 12) - 17-Nov-2020 13:07:26 - [ 16] Summary Form for Proposal 16313 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 25MAMA, F25SRF2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=100 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 11 BY 0.8 Orbits TO 1.2 Orbits, BETWEEN 06-DEC-2020:00:00:00 AND 08-DEC-2020, BETWEEN 15-SEP-2020:00:00:00 AND 15-DEC-2020:00:00:00, BETWEEN 16-DEC-2020 AND 17-DEC-2020, POS TARG null, -3, VISIBILITY INTERVAL 51 M, VISIBILITY INTERVAL 51.5 M ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names URANUS ------------------------------------------------------------------------------------------------------------------------------------