12235( 35) - 28-Apr-2011 14:49:33 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12235 Version: 35 Check-in Time: 28-Apr-2011 14:49:33 STScI Edit Number: 33 Title The energy of auroral electrons at Saturn and the associated atmospheric heating ------------------------------------------------------------------------------------ Type Cycle GO 18 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Jean-Claude M. Gerard Universite de Liege CoI: Dr. Bertrand Bonfond Universite de Liege N CoI: Prof. John T. Clarke Boston University N CoI: Dr. G. Randall Gladstone Southwest Research Institute N CoI: Dr. Denis Grodent Universite de Liege N CoI: Dr. Jacques Gustin Universite de Liege N CoI: Dr. Jonathan D. Nichols University of Leicester N CoI: Dr. Wayne R. Pryor Central Arizona College N CoI: Dr. Aikaterini Radioti Universite de Liege N ------------------------------------------------------------------------------------ Abstract Past HST observations of SaturnÕs aurora have concentrated on the morphology and the relationship between the solar wind and the brightness of the aurora. With STIS back to work, time has come to move into a more quantitative era where FUV spectroscopy is used as a powerful tool to remotely sense the characteristics of the precipitated electrons and their effect on the H2 gas. In the proposed program, we focus on images and spectroscopy linking precipitated particles with the morphology observed quasi simultaneously. We have a unique opportunity to address key questions concerning the characteristic energy of the auroral electrons and their effects on the temperature of the upper atmosphere. In particular, we propose to combine HST FUV imaging with STIS long slit low and medium resolution spectroscopy to determine the spatial variations of the FUV color ratio, the altitude of the aurora and to map the temperature in the high-latitude region. A combined HST-Cassini campaign has been planned at the time of SaturnÕs opposition in 2011 to complement HST spatial spectroscopy with observations from UVIS covering both hemispheres from a different vantage point. This compact and timely program is designed to provide key observations toward a better understanding of the physical interactions taking place in SaturnÕs aurora. ------------------------------------------------------------------------------------ Observations Description ------------------------ This program is based on coordinated STIS spectral observations of Saturn's FUV north aurora with simultaneous Cassini-UVIS measurements distributed over 3 visits. A time-tag image will be obtained at the beginning of each visit to view the global context of the spectra. STIS FUV images of Saturn previously obtained by the PI and other team members have demonstrated that the STIS count rate limit is far from being reached during such observations. Time-tagged spectral observations with the 52x0.5" long slit aperture will use the G140L and G140M gratings. The slit will scan the north auroral oval from the equatorward boundary of the oval up to several 1000s km above the north 12235( 35) - 28-Apr-2011 14:49:33 - [ 2] limb. The slit will be oriented with the minimum possible inclination angle on the planetary equatorial plane compatible with the spacecraft orientation constraints, with a maximum value of +/- 30”. These roll angles will be requested on an as-available basis for the orientation of HST at the time of observations. We wish to minimize the geocoronal Ly-alpha emission by observing in Earth shadow whenever possible. The sequence of the observations will be: VISITS #11 and #12 (consecutive orbits 1 and 2) : orbit 1: one 25MAMA STIS CLEAR image of the planetary disk, followed by one S-N scan of the north auroral region with the 52x0.5" slit and G140L grating. Both exposures will be time tagged. orbit 2: one 25MAMA STIS CLEAR image of the planetary disk, followed by one S-N scan of the north auroral region with the 52x0.5" slit and G140M grating in the time-tag mode, with lambcentral = 1567 . VISITS #21 and #22 (consecutive orbits 3 and 4) and VISITS #31 and #32 (consecutive orbits 5 and 6): will repeat the same sequences. These observations will be scheduled in coordination with the auroral observing campaigns planned for Cassini during Cycle 18. Although the detailed observation sequences of Cassini are not full defined yet, 3 periods have already been defined in the Cassini planning in support of this HST program. The dates are: 23-DEC-2010 17-APR-2011, with Cassini located near orbital periapsis 8-9-JUL-2011 The HST visits have been defined based on these observation plans, which may still be revised. Not yet knowing the orbital HST ephemeris during this cycle, the detailed scheduling will be decided in coordination with STScI. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: SATURN-A-FIX ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Saturn center for image ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=0.0, ANG=0, REF=NORTH ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Image center (STIS FOV center) should be ~on Saturn center Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 4] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 TARGET NAME: SATURN-VISIT11-SLEW-ORBIT1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=7.0, ANG=0, REF=NORTH, R_RAD=144, EPOCH=10-MAY-2011:13:10:25 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit, from ~55” centric latitude to ~7000 km above limb (~above NP). SLEW=3.5" in 1500 s (201.6"/day). The slew is towards the Ephemeris Center: EARTH north of Saturn RAD and ANG are for slit center Auroral zone is well covered (slew+2*slit half width =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 5] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 TARGET NAME: SATURN-B-FIX ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Saturn center for image ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=0.0, ANG=0, REF=NORTH ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Image center (STIS FOV center) should be ~on Saturn center Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 4 TARGET NAME: SATURN-VISIT21-SLEW-ORBIT1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=6, ANG=0, REF=NORTH, R_RAD=239.55, EPOCH=17-APR-2011:22:03:05 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit. The slew is towards the north of Saturn RAD and ANG are for slit center. Auroral zone is well covered (slew+2*slit half width Ephemeris Center: EARTH =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 6] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 5 TARGET NAME: SATURN-C-FIX ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Saturn center for image ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=0.0, ANG=0, REF=NORTH ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Image center (STIS FOV center) should be ~on Saturn center Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 7] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 6 TARGET NAME: SATURN-C-SLEW-S-N ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=6.8, ANG=0, REF=NORTH, R_RAD=201.6, EPOCH=28-JAN-2011:12:11:13 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit, from ~55” centric latitude to ~7000 km above limb (~above NP). SLEW=3.5" in 1500 s (201.6"/day). The slew is towards the Ephemeris Center: EARTH north of Saturn RAD and ANG are for slit center Auroral zone is well covered (slew+2*slit half width =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 8] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 7 TARGET NAME: SATURN-VISIT32-SLEW-ORBIT1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=5.5, ANG=0, REF=NORTH, R_RAD=316.8, EPOCH=17-MAR-2011:17:13:09 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit, from ~55” centric latitude to ~7000 km above limb (~above NP). SLEW=3.5" in 1500 s (316.8"/day). The slew is towards the Ephemeris Center: EARTH north of Saturn RAD and ANG are for slit center Auroral zone is well covered (slew+2*slit half width =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) EPOCH set for visit 32 exposure 2 to start at 2011.076:18:25:10 (minus Saturn->Earth light travel time). ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 9] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 8 TARGET NAME: SATURN-VISIT32-SLEW-ORBIT2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=5.5, ANG=0, REF=NORTH, R_RAD=316.8, EPOCH=17-MAR-2011:18:48:48 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit, from ~55” centric latitude to ~7000 km above limb (~above NP). SLEW=3.5" in 1500 s (316.8"/day). The slew is towards the Ephemeris Center: EARTH north of Saturn RAD and ANG are for slit center Auroral zone is well covered (slew+2*slit half width =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) EPOCH set for visit 32 exposure 4 to start at 2011.076:20:00:49 (minus Saturn->Earth light travel time). ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 10] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 9 TARGET NAME: SATURN-VISIT21-SLEW-ORBIT2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=7, ANG=0, REF=NORTH, R_RAD=133.87, EPOCH=17-APR-2011:23:38:12 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit. The slew is towards the north of Saturn RAD and ANG are for slit center. Auroral zone is well covered (slew+2*slit half width Ephemeris Center: EARTH =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 11] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 10 TARGET NAME: SATURN-VISIT11-SLEW-ORBIT2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET Auroral zone in Saturn's northern hemisphere ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=SATURN TYPE=POS_ANGLE, RAD=7.0, ANG=0, REF=NORTH, R_RAD=144, EPOCH=10-MAY-2011:14:44:18 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.8 +/- 1 Apply S-N slew to STIS long slit, from ~55” centric latitude to ~7000 km above limb (~above NP). SLEW=3.5" in 1500 s (201.6"/day). The slew is towards the Ephemeris Center: EARTH north of Saturn RAD and ANG are for slit center Auroral zone is well covered (slew+2*slit half width =3.5"+2*0.5"/2=4"), even with +/- 1" offset from nominal pointing. RAD and R_RAD assume that planet tilt is small (~0”) so that slew is perpendicular to ecliptic plane (for simplicity) EPOCH is indicative and depends on final schedule. STIS slit should be as // as possible to Saturn equatorial plane (within 30”) ------------------------------------------------------------------------------------------------------------------------------------ 12235( 35) - 28-Apr-2011 14:49:33 - [ 12] Visit: 11 Visit Requirements: BETWEEN 10-MAY-2011:12:25:00 AND 10-MAY-2011:13:30:00 On Hold Comments: Additional Comments: Orbit 1/2 of visit 1x STIS slit should be as parallel as possible to Saturn's rings plane **IMPORTANT** Epoch on target SATURN-A-SLEW-S-N must be updated if BETWEEN changes. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SATURN-A-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 395 S GS ACQ SCENARIO BASE1B3; X -MAMA G SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 SATURN-VISI STIS/FUV TIME-TA 52X0.5 G140L 1425 BUFFER-TIME=500 1 1500 S GS ACQ SCENARIO BASE1B3 T11-SLEW-OR -MAMA G BIT1 Comments: assumes pointing and radial slew ------------------------------------------------------------------------------------------------------------------------------------ 3 SATURN-A-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 366 S NEW OBSET FULL ACQ; GS X -MAMA G ACQ SCENARIO BASE1B3; SEQ 3-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 SATURN-VISI STIS/FUV TIME-TA 52X0.5 G140L 1425 BUFFER-TIME=500 1 1500 S GS ACQ SCENARIO BASE1B3 T11-SLEW-OR -MAMA G BIT2 Comments: assumes pointing and radial slew ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SATURN-A-FIX 1 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G SATURN-VISIT11-SLEW 2 STIS/FUV TIME-TA 52X0.5 G140L 1425 none none none none 1 N/A -ORBIT1 -MAMA G SATURN-A-FIX 3 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 2 N/A -MAMA G SATURN-VISIT11-SLEW 4 STIS/FUV TIME-TA 52X0.5 G140L 1425 none none none none 2 N/A -ORBIT2 -MAMA G 12235( 35) - 28-Apr-2011 14:49:33 - [ 13] Visit: 21 Visit Requirements: ORIENT 106D TO 164 D; BETWEEN 17-APR-2011:21:30:00 AND 17-APR-2011:22:30:00 On Hold Comments: Additional Comments: Orbit 1/2 of visit 2x Cassini Rev 147 STIS slit should be as parallel as possible to Saturn's rings plane **IMPORTANT** Epoch on target SATURN-B-SLEW-S-N must be updated if BETWEEN changes. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SATURN-B-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 345 S SEQ 1-2 NON-INT X -MAMA G ------------------------------------------------------------------------------------------------------------------------------------ 2 SATURN-VISI STIS/FUV TIME-TA 52X0.5 G140L 1425 BUFFER-TIME=500 1 1500 S T21-SLEW-OR -MAMA G BIT1 Comments: assumes pointing and radial slew for 17APR2011 ------------------------------------------------------------------------------------------------------------------------------------ 3 SATURN-B-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 316 S NEW OBSET FULL ACQ; SEQ X -MAMA G 3-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 SATURN-VISI STIS/FUV TIME-TA 52X0.5 G140M 1567 BUFFER-TIME=750 1 1500 S T21-SLEW-OR -MAMA G BIT2 Comments: assumes pointing and radial slew for 17APR2011 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SATURN-B-FIX 1 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G SATURN-VISIT21-SLEW 2 STIS/FUV TIME-TA 52X0.5 G140L 1425 none none none none 1 N/A -ORBIT1 -MAMA G SATURN-B-FIX 3 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 2 N/A -MAMA G SATURN-VISIT21-SLEW 4 STIS/FUV TIME-TA 52X0.5 G140M 1567 none none none none 2 N/A -ORBIT2 -MAMA G 12235( 35) - 28-Apr-2011 14:49:33 - [ 14] Visit: 31 Visit Requirements: BETWEEN 28-JAN-2011:13:00:00 AND 28-JAN-2011:14:00:00 On Hold Comments: Additional Comments: Orbit 1/2 of visit 3x STIS slit should be as parallel as possible to Saturn's rings plane ***IMPORTANT*** Epoch on target SATURN-C-SLEW-S-N must be updated if BETWEEN changes. NOTE: Other scheduling times are possible on January 28, 2011 with appropriate changes to EPOCH and BETWEEN. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SATURN-C-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 395 S SEQ 1-2 NON-INT X -MAMA G ------------------------------------------------------------------------------------------------------------------------------------ 2 SATURN-C-SL STIS/FUV TIME-TA 52X0.5 G140L 1425 BUFFER-TIME=500 1 1440 S EW-S-N -MAMA G Comments: assumes pointing and radial slew for 08JUL2011 ------------------------------------------------------------------------------------------------------------------------------------ 3 SATURN-C-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 366 S NEW OBSET FULL ACQ; SEQ X -MAMA G 3-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 SATURN-C-SL STIS/FUV TIME-TA 52X0.5 G140M 1567 BUFFER-TIME=750 1 1440 S EW-S-N -MAMA G Comments: assumes pointing and radial slew for 08JUL2011 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SATURN-C-FIX 1 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G SATURN-C-SLEW-S-N 2 STIS/FUV TIME-TA 52X0.5 G140L 1425 none none none none 1 N/A -MAMA G SATURN-C-FIX 3 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 2 N/A -MAMA G SATURN-C-SLEW-S-N 4 STIS/FUV TIME-TA 52X0.5 G140M 1567 none none none none 2 N/A -MAMA G 12235( 35) - 28-Apr-2011 14:49:33 - [ 15] Visit: 32 Visit Requirements: BETWEEN 2011.076:17:45 AND 2011.076:18:15 On Hold Comments: Additional Comments: Repeat of failed visit 31. STIS slit should be as parallel as possible to Saturn's rings plane ***IMPORTANT*** Epoch on target SATURN-D-SLEW-S-N must be updated if BETWEEN changes. NOTE: Other scheduling times are possible with appropriate changes to EPOCH and BETWEEN. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SATURN-C-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 395 S SEQ 1-2 NON-INT X -MAMA G ------------------------------------------------------------------------------------------------------------------------------------ 2 SATURN-VISI STIS/FUV TIME-TA 52X0.5 G140L 1425 BUFFER-TIME=500 1 1440 S T32-SLEW-OR -MAMA G BIT1 Comments: assumes pointing and radial slew for 08JUL2011 ------------------------------------------------------------------------------------------------------------------------------------ 3 SATURN-C-FI STIS/FUV TIME-TA 25MAMA MIRROR BUFFER-TIME=99 1 366 S NEW OBSET FULL ACQ; SEQ X -MAMA G 3-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 SATURN-VISI STIS/FUV TIME-TA 52X0.5 G140M 1567 BUFFER-TIME=750 1 1440 S T32-SLEW-OR -MAMA G BIT2 Comments: assumes pointing and radial slew for 08JUL2011 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SATURN-C-FIX 1 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 1 N/A -MAMA G SATURN-VISIT32-SLEW 2 STIS/FUV TIME-TA 52X0.5 G140L 1425 none none none none 1 N/A -ORBIT1 -MAMA G SATURN-C-FIX 3 STIS/FUV TIME-TA 25MAMA MIRROR none none none none 2 N/A -MAMA G SATURN-VISIT32-SLEW 4 STIS/FUV TIME-TA 52X0.5 G140M 1567 none none none none 2 N/A -ORBIT2 -MAMA G 12235( 35) - 28-Apr-2011 14:49:33 - [ 16] Summary Form for Proposal 12235 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 25MAMA, 52X0.5 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=500, BUFFER-TIME=750, BUFFER-TIME=99 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 10-MAY-2011:12:25:00 AND 10-MAY-2011:13:30:00, BETWEEN 17-APR-2011:21:30:00 AND 17-APR-2011:22:30:00, BETWEEN 2011.076:17:45 AND 2011.076:18:15, BETWEEN 28-JAN-2011:13:00:00 AND 28-JAN-2011:14:00:00, GS ACQ SCENARIO BASE1B3, NEW OBSET FULL ACQ, ORIENT 106D TO 164 D, SEQ 1-2 NON-INT, SEQ 3-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G140L, G140M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names SATURN-A-FIX, SATURN-B-FIX, SATURN-C-FIX, SATURN-C-SLEW-S-N, SATURN-VISIT11-SLEW-ORBIT1, SATURN-VISIT11-SLEW-ORBIT2, SATURN-VISIT21-SLEW-ORBIT1, SATURN-VISIT21-SLEW-ORBIT2, SATURN-VISIT32-SLEW-ORBIT1, SATURN-VISIT32-SLEW-ORBIT2 ------------------------------------------------------------------------------------------------------------------------------------