10268( 6) - 05/05/04 17:11 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 10268 Version: 6 Check-in Date: 05-May-2004 21:08:06 1.Proposal Title: Recovery of three faint Kuiper Belt Objects discovered with HST ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle 4. Parallel Pointing Tolerance GO 13 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Dr. David E. Trilling University of Pennsylvania CoI: Dr. Gary Bernstein University of Pennsylvania N ------------------------------------------------------------------------------------ 6. Abstract We propose 6 orbits to make ACS/WFC follow-up observations of three faint Kuiper Belt Objects (KBOs) that we discovered in the Large Cycle 11 program GO 9433 (G. Bernstein, PI; Bernstein et al. 2004). These KBOs are the faintest -- and therefore smallest -- KBOs known. Two of these objects can be recovered (and the third easily recovered and its colors probed) only with HST. Any future studies of small KBOs will require knowledge of our three faint KBOs. With the proposed observations, the locations of these KBOs will be known quite well until after first light for JWST. Without the proposed observations, these three small KBOs will be effectively lost. This small program represents a small investment of HST time to solidify the legacy of the Bernstein et al. Large GO program. With the proposed observations, we will be able to determine with certainty the dynamical classes of these three KBOs, testing the hypothesis that small KBOs are predominantly classical KBOs. We will also test the suggestion that classical KBOs are uniformly quite red. Lastly, our observations will enable physical studies (e.g., spectroscopy) with JWST a decade from now. All these measurements will provide important evidence for theories on the formation and evolution of the Solar System. ------------------------------------------------------------------------------------ 10268( 6) - 05/05/04 17:11 - [ 2] Observations Description ------------------------ Six orbits in five visits are planned. 2003BF91 is observed in three visits, each of one orbit. The first and second visits are to be separated by one orbit, and the second and third visits are also to be separated by one orbit. 2003BG91 is observed in a single visit comprising one orbit. We observe 2003BG91 in two filters. 2003BH91 is observed in a single visit spanning two (consecutive) orbits. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 10268( 6) - 05/05/04 17:11 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 | TARGET NAME: 2003BF91 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: OTHER Kuiper Belt Object ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=44.302541,E=0.160217,I=1 | .486203,O=110.214047,W=20.81801,M=65.231 | 716,EPOCH=29-May- | 2004:00:01:04.0,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 28.15+/-0.04 | 2003BF91 is observed in three | separate visits. The first and | second visit are to be separated by | one orbit and the second and third | visit are to be separated by one | orbit. Valid observations between | 23-May-2004 and 6-Jun-2004. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 | TARGET NAME: 2003BG91 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: OTHER Kuiper Belt Object ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=43.410898,E=0.073243,I=2 | .458712,O=176.107489,W=45.379552,M=- | 6.246981,EPOCH=29-May- | 2004:00:01:04.0,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 26.95+/-0.02 | 2003BG91 observed in a single visit | in two bandpasses. | ------------------------------------------------------------------------------------------------------------------------------------ 10268( 6) - 05/05/04 17:11 - [ 4] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 | TARGET NAME: 2003BH91 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: OTHER Kuiper Belt Object ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=51.974613,E=0.410752,I=1 | .972663,O=80.143147,W=220.049879,M=- | 41.417243,EPOCH=29-May- | 2004:00:01:04.0,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 28.38+/-0.05 | 2003BH91 observed in a single visit | spanning two orbits. Orbits and | exposures should be consecutive to | the greatest possible extent. | ------------------------------------------------------------------------------------------------------------------------------------ 10268( 6) - 05/05/04 17:11 - [ 5] Visit: 01 Visit Priority: Visit Requirements: ORIENT 131.0D TO 187.0 D; BETWEEN 23-MAY-2004:00:00:00 AND 06-JUN- 2004:00:00:00 On Hold Comments: Additional Comments: First visit for 2003BF91 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0, 0; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.5, 0.075 ------------------------------------------------------------------------------------------------------------------------------------ 3 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 4 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.4,-3.15 ------------------------------------------------------------------------------------------------------------------------------------ 5 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Visit Id| Exp Id |Primary |Secondary |Iteration |CR-SPLIT |Orbit Num |Duration | |Pattern Pos |Pattern Pos |Num |Num | | ------------------------------------------------------------------------------------------------------------------------------------ 01 1 none none none none 1 tbd 01 2 none none none none 1 tbd 01 3 none none none none 1 tbd 01 4 none none none none 1 tbd 01 5 none none none none 1 tbd 10268( 6) - 05/05/04 17:11 - [ 6] Visit: 02 Visit Priority: Visit Requirements: SAME ORIENT AS 01; AFTER 01 BY 1.75 Orbits TO 2.25 Orbits; BETWEEN 23-MAY- 2004:00:00:00 AND 06-JUN-2004:00:00:00 On Hold Comments: Additional Comments: Second visit for 2003BF91 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0, 0; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.5, 0.075 ------------------------------------------------------------------------------------------------------------------------------------ 3 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 4 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.4,-3.15 ------------------------------------------------------------------------------------------------------------------------------------ 5 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Visit Id| Exp Id |Primary |Secondary |Iteration |CR-SPLIT |Orbit Num |Duration | |Pattern Pos |Pattern Pos |Num |Num | | ------------------------------------------------------------------------------------------------------------------------------------ 02 1 none none none none 1 tbd 02 2 none none none none 1 tbd 02 3 none none none none 1 tbd 02 4 none none none none 1 tbd 02 5 none none none none 1 tbd 10268( 6) - 05/05/04 17:11 - [ 7] Visit: 03 Visit Priority: Visit Requirements: SAME ORIENT AS 01; AFTER 02 BY 1.75 Orbits TO 2.25 Orbits; BETWEEN 23-MAY- 2004:00:00:00 AND 06-JUN-2004:00:00:00 On Hold Comments: Additional Comments: Third visit for 2003BF91 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0, 0; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.5, 0.075 ------------------------------------------------------------------------------------------------------------------------------------ 3 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 4 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.4,-3.15 ------------------------------------------------------------------------------------------------------------------------------------ 5 2003BF91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Visit Id| Exp Id |Primary |Secondary |Iteration |CR-SPLIT |Orbit Num |Duration | |Pattern Pos |Pattern Pos |Num |Num | | ------------------------------------------------------------------------------------------------------------------------------------ 03 1 none none none none 1 tbd 03 2 none none none none 1 tbd 03 3 none none none none 1 tbd 03 4 none none none none 1 tbd 03 5 none none none none 1 tbd 10268( 6) - 05/05/04 17:11 - [ 8] Visit: 04 Visit Priority: Visit Requirements: BETWEEN 23-MAY-2004:00:00:00 AND 06-JUN-2004:00:00:00; ON HOLD On Hold Comments: Schedule either visit 04 or 14. Do not schedule both. Visit 04 is preferred. If visit 04 leads to scheduling difficulties or lower efficiency, use visit 14 instead. Additional Comments: A single orbit for 2003BG91 (two filters) Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2003BG91 ACS/WFC ACCUM WFC1 F555W CR-SPLIT=NO 1 380 S POS TARG 0, 0; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 2003BG91 ACS/WFC ACCUM WFC1 F555W CR-SPLIT=NO 1 380 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 3 2003BG91 ACS/WFC ACCUM WFC1 F555W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ 4 2003BG91 ACS/WFC ACCUM WFC1 F814W CR-SPLIT=NO 1 380 S POS TARG 0, 0 ------------------------------------------------------------------------------------------------------------------------------------ 5 2003BG91 ACS/WFC ACCUM WFC1 F814W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Visit Id| Exp Id |Primary |Secondary |Iteration |CR-SPLIT |Orbit Num |Duration | |Pattern Pos |Pattern Pos |Num |Num | | ------------------------------------------------------------------------------------------------------------------------------------ 04 1 none none none none 1 tbd 04 2 none none none none 1 tbd 04 3 none none none none 1 tbd 04 4 none none none none 1 tbd 04 5 none none none none 1 tbd 10268( 6) - 05/05/04 17:11 - [ 9] Visit: 05 Visit Priority: Visit Requirements: ORIENT 131.0D TO 175.0 D; BETWEEN 23-MAY-2004:00:00:00 AND 06-JUN- 2004:00:00:00 On Hold Comments: Additional Comments: Two orbits for 2003BH91 as a single visit Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0, 0; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.5, 0.075 ------------------------------------------------------------------------------------------------------------------------------------ 3 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 4 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.4,-3.15 ------------------------------------------------------------------------------------------------------------------------------------ 5 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ 6 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 410 S POS TARG 0, 0; SEQ 6-10 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 7 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 410 S POS TARG 0.5, 0.075 ------------------------------------------------------------------------------------------------------------------------------------ 8 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 410 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 9 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 410 S POS TARG 0.4,-3.15 ------------------------------------------------------------------------------------------------------------------------------------ 10 2003BH91 ACS/WFC ACCUM WFC F606W CR-SPLIT=NO 1 410 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Visit Id| Exp Id |Primary |Secondary |Iteration |CR-SPLIT |Orbit Num |Duration | |Pattern Pos |Pattern Pos |Num |Num | | ------------------------------------------------------------------------------------------------------------------------------------ 05 1 none none none none 1 tbd 05 2 none none none none 1 tbd 05 3 none none none none 1 tbd 05 4 none none none none 1 tbd 05 5 none none none none 1 tbd 05 6 none none none none 2 tbd 05 7 none none none none 2 tbd 05 8 none none none none 2 tbd 05 9 none none none none 2 tbd 05 10 none none none none 2 tbd 10268( 6) - 05/05/04 17:11 - [ 10] Visit: 14 Visit Priority: Visit Requirements: BETWEEN 23-MAY-2004:00:00:00 AND 06-JUN-2004:00:00:00; ON HOLD On Hold Comments: Schedule either visit 04 or 14. Do not schedule both. Visit 04 is preferred. If visit 04 leads to scheduling difficulties or lower efficiency, use visit 14 instead. Additional Comments: A single orbit for 2003BG91 (two filters) Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2003BG91 ACS/WFC ACCUM WFC1 F555W CR-SPLIT=NO 1 380 S POS TARG 0, 0 ------------------------------------------------------------------------------------------------------------------------------------ 2 2003BG91 ACS/WFC ACCUM WFC1 F555W CR-SPLIT=NO 1 380 S POS TARG 0.75,-3.075 ------------------------------------------------------------------------------------------------------------------------------------ 3 2003BG91 ACS/WFC ACCUM WFC1 F555W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ 4 2003BG91 ACS/WFC ACCUM WFC1 F814W CR-SPLIT=NO 1 380 S POS TARG 0, 0 ------------------------------------------------------------------------------------------------------------------------------------ 5 2003BG91 ACS/WFC ACCUM WFC1 F814W CR-SPLIT=NO 1 380 S POS TARG 0.25,-3 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Visit Id| Exp Id |Primary |Secondary |Iteration |CR-SPLIT |Orbit Num |Duration | |Pattern Pos |Pattern Pos |Num |Num | | ------------------------------------------------------------------------------------------------------------------------------------ 14 1 none none none none 1 tbd 14 2 none none none none 1 tbd 14 3 none none none none 1 tbd 14 4 none none none none 1 tbd 14 5 none none none none 1 tbd 10268( 6) - 05/05/04 17:11 - [ 11] Summary Form for Proposal 10268 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC WFC1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 131.0D TO 187.0 D; BETWEEN 23-MAY-2004 00 00 00 AND 06-JUN-2004 00 00 00 POS TARG 0, 0; SEQ 1-5 NON-INT POS TARG 0.5, 0.075 POS TARG 0.75,-3.075 POS TARG 0.4,-3.15 POS TARG 0.25,-3 SAME ORIENT AS 01; AFTER 01 BY 1.75 Orbits TO 2.25 Orbits; BETWEEN 23-MAY-2004 00 00 00 AND 06-JUN-2004 00 00 00 SAME ORIENT AS 01; AFTER 02 BY 1.75 Orbits TO 2.25 Orbits; BETWEEN 23-MAY-2004 00 00 00 AND 06-JUN-2004 00 00 00 BETWEEN 23-MAY-2004 00 00 00 AND 06-JUN-2004 00 00 00; ON HOLD POS TARG 0, 0 ORIENT 131.0D TO 175.0 D; BETWEEN 23-MAY-2004 00 00 00 AND 06-JUN-2004 00 00 00 POS TARG 0, 0; SEQ 6-10 NON-INT BETWEEN 23-MAY-2004 00 00 00 AND 06-JUN-2004 00 00 00; ON HOLD ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W F555W F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names 2003BF91 2003BG91 2003BH91 ------------------------------------------------------------------------------------------------------------------------------------