15357( 33) - 27-Nov-2017 12:36:14 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15357 Version: 33 Check-in Time: 27-Nov-2017 12:36:14 STScI Edit Number: 0 Title Active Asteroid (3200) Phaethon during its unusually close approach to Earth ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Quan-Zhi Ye California Institute of Technology Y CoI: Man-To Hui University of California - Los Angeles N CoI: Prof. Paul Wiegert The University of Western Ontario N CoI: Dr. Thomas A Prince California Institute of Technology N ------------------------------------------------------------------------------------ Abstract The unusual asteroid and possible dormant comet (3200) Phaethon will pass 0.069 AU (27 lunar distances) from the Earth in Dec 2017, the closest since its discovery in 1983 and also until 2093. Phaethon is classified as an asteroid but has been associated with the strong Geminid meteor shower, implying significant mass loss during its previous orbits of which the mechanism remains poorly understood. We hereby request two HST GO orbits to observe Phaethon with HST/ACS during its flyby in Dec 2017. Our goal is to look for accompanying meter-sized fragments as well as to detect the associated dust (meteoroid) dust trail. The proposed observation will provide valuable information for the origin of Phaethon's mass loss. HST's high angular resolution and sensitivity is critical for achiving the maximum science return from this unprecedented clost approach. ------------------------------------------------------------------------------------ Observations Description ------------------------ The main goal of this program is to search for meter-sized fragments from Phaethon (point sources). The images will also enable search for Phaethon's associated dust trail (extended source) which will be done on a best-effort basis. Orbital elements are derived from an ensemble of synthetic fragments, represented by an artificial object, "Phaethon-clone". The position of Phaethon-clone at the observation window is roughly RA=265 deg, Dec=+55 deg. The probability ellipse is oriented along 27 deg (N=0 deg) and is about 10' wide, 6 deg long. We use pos-targ to offset the two visits; however, the on-sky orientation depends on the orientation of HST focal plane, which is unknown at this point. The pos-targ parameters are subjected to update when the orientation of the HST focal plane is known. In the worst case scenario that the pos-targ are perpendicular to the ellipse axis, the images are still within the probability ellipse and are therefore useful for science. We plan to use 2 orbits to image a total of two positions (each position include its respective dithering) with ACS/WFC, covering a 6'-wide section within the probability ellipse. For each visit, we will take four 545-s exposures, dithering between two points that are 10 pixels apart in both x and y directions, in order to migrate the effects of cosmic rays and comtamination 15357( 33) - 27-Nov-2017 12:36:14 - [ 2] of background star trails. We plan to use Broadband V (F606W) filter in order to derive spectral information of any detected fragments. We set FLASH=3 in order to correct for poor charge transfer efficiency (CTE). The ACS Exposure Time Calculator indicates that a signal-to noise ratio of 4 can be reached in 545 s exposure, assuming a solar-type spectrum point source at V=27.0, corresponding to a 1-m-sized object (assuming a geometric albedo of 0.10 similar to Phaethon). Observations are planned for a 4-hour window near 2017 Dec 14 14:00 UT, the time that the Earth passes the minimum orbit intersection distance (MOID) point of which the fragments near this position are closest (~0.02 au). This position is far from Phaethon itself on the sky plane (more than tens of degrees) due to the geometry caused by the close approach, therefore Phaethon will not be in the images and cannot be used as an acquisition target. ------------------------------------------------------------------------------------ 15357( 33) - 27-Nov-2017 12:36:14 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: PHAETHON-CLONE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: OFFSET clone of asteroid (3200) Phaethon ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=ASTEROID, A=1.271005134, E=0.88991227, I=22.253726, O=265.22932, W=322.17133, M=304.57093, EQUINOX=J2000, EPOCH=01-NOV-2017:12:00:00, EpochTimeScale=TDB ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 27 Ephemeris Center: HUBBLE Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 15357( 33) - 27-Nov-2017 12:36:14 - [ 4] Visit: 01 Visit Requirements: BETWEEN 14-DEC-2017:12:00:00 AND 14-DEC-2017:16:00:00 On Hold Comments: Additional Comments: 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 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) -102.11211890107228, -7.140374935548657; NEW ALIGNMENT ------------------------------------------------------------------------------------------------------------------------------------ 2 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) -102.11211890107228, -7.140374935548657; NEW ALIGNMENT ------------------------------------------------------------------------------------------------------------------------------------ 3 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) -101.61211890107228, -6.640374935548657; NEW ALIGNMENT ------------------------------------------------------------------------------------------------------------------------------------ 4 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) -101.61211890107228, -6.640374935548657; NEW ALIGNMENT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 1 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 3 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 4 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A 15357( 33) - 27-Nov-2017 12:36:14 - [ 5] Visit: 02 Visit Requirements: BETWEEN 14-DEC-2017:12:00:00 AND 14-DEC-2017:16:00:00 On Hold Comments: Additional Comments: 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 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) 102.11211890107228, 7.140374935548657; NEW ALIGNMENT Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 2 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) 102.11211890107228, 7.140374935548657; NEW ALIGNMENT Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 3 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) 102.11211890107228, 7.140374935548657; NEW ALIGNMENT Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 4 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 500 S (500 POS TARG ONE S) 102.11211890107228, 7.140374935548657; NEW ALIGNMENT Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 1 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 3 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 4 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A 15357( 33) - 27-Nov-2017 12:36:14 - [ 6] Visit: 03 Visit Requirements: BETWEEN 14-DEC-2017:16:00:00 AND 14-DEC-2017:20:30:00 On Hold Comments: Additional Comments: 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 PHAETHON-CL S/C POINTIN V1 1 1 S (1 S) POS TARG 159.208212, ONE G 255.030697; SAA CONTOUR 27; GS ACQ SCENARIO BASE1B3; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG -102.112119, ONE S) -7.140375; NEW OBSET; EXP PCS MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 3 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG -102.112119, ONE S) -7.140375; NEW ALIGNMENT; EXP PCS MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 4 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG -101.612119, ONE S) 7.640370; NEW ALIGNMENT; EXP PCS MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 5 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG -101.612119, ONE S) 7.640370; NEW ALIGNMENT; EXP PCS MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 1 S/C POINTIN V1 none none none none 1 N/A G PHAETHON-CLONE 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 3 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 4 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 5 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A 15357( 33) - 27-Nov-2017 12:36:14 - [ 7] Visit: 04 Visit Requirements: SAME ORIENT AS 03; BETWEEN 14-DEC-2017:16:00:00 AND 14-DEC-2017:20:30:00 On Hold Comments: Additional Comments: 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 PHAETHON-CL S/C POINTIN V1 1 1 S (1 S) POS TARG 363.858388, ONE G 249.573103; GS ACQ SCENARIO BASE1B3; SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG 102.112119, ONE S) 7.140375; NEW OBSET; EXP PCS MODE GYRO Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 3 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG 102.112119, ONE S) 7.140375; NEW ALIGNMENT; EXP PCS MODE GYRO Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 4 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG 102.612120, ONE S) 7.640370; NEW ALIGNMENT; EXP PCS MODE GYRO Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 5 PHAETHON-CL ACS/WFC ACCUM WFCENTER F606W FLASH=3 1 442 S (442 POS TARG 102.612120, ONE S) 7.640370; NEW ALIGNMENT; EXP PCS MODE GYRO Comments: Spectral Element for both exposures should be CLEAR. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 1 S/C POINTIN V1 none none none none 1 N/A G PHAETHON-CLONE 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 3 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 4 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PHAETHON-CLONE 5 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A 15357( 33) - 27-Nov-2017 12:36:14 - [ 8] Visit: 13 Visit Requirements: ORIENT 13D TO 13 D; BETWEEN 14-DEC-2017:16:00:00 AND 14-DEC-2017:20:30:00 On Hold Comments: Additional Comments: 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 PHAETHON-CL S/C POINTIN V1 1 1 S (1 S) POS TARG 313.9606, ONE G 159.3813; SAA CONTOUR 27; GSPAIR N1ZH000490F20000000000F0 ; GS ACQ SCENARIO ONEB1B3; SEQ 1-17 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW OBSET; EXP PCS MODE ONE S) GYRO ------------------------------------------------------------------------------------------------------------------------------------ 3 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 5 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 6 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 7 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 8 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 9 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 10 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 11 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 12 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 15357( 33) - 27-Nov-2017 12:36:14 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 13 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 14 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 15 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 16 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 17 PHAETHON-CL ACS/WFC ACCUM WFC1B-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 1 S/C POINTIN V1 none none none none 1 N/A G PHAETHON-CLONE 2 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 3 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 4 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 5 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 6 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 7 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 8 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 9 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 10 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 11 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 12 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 13 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 15357( 33) - 27-Nov-2017 12:36:14 - [ 10] 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 14 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 15 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 16 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 17 ACS/WFC ACCUM WFC1B-51 F606W none none none none 1 N/A 2 15357( 33) - 27-Nov-2017 12:36:14 - [ 11] Visit: 14 Visit Requirements: SAME ORIENT AS 13; BETWEEN 14-DEC-2017:16:00:00 AND 14-DEC-2017:20:30:00 On Hold Comments: Additional Comments: 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 PHAETHON-CL S/C POINTIN V1 1 1 S (1 S) POS TARG 213.7872, ONE G 164.2088; GSPAIR N20V000007F10000000000F0 ; GS ACQ SCENARIO ONEB1B3; SEQ 1-17 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW OBSET; EXP PCS MODE ONE S) GYRO ------------------------------------------------------------------------------------------------------------------------------------ 3 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 5 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 6 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 7 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 8 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 9 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 10 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 11 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 12 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 13 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO 15357( 33) - 27-Nov-2017 12:36:14 - [ 12] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 14 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 15 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 16 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 EXP PCS MODE GYRO ONE S) ------------------------------------------------------------------------------------------------------------------------------------ 17 PHAETHON-CL ACS/WFC ACCUM WFC1A-512 F606W FLASH=3 1 60 S (60 NEW ALIGNMENT; EXP PCS ONE S) MODE GYRO ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 1 S/C POINTIN V1 none none none none 1 N/A G PHAETHON-CLONE 2 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 3 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 4 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 5 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 6 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 7 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 8 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 9 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 10 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 11 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 12 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 13 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 14 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 15357( 33) - 27-Nov-2017 12:36:14 - [ 13] 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 | ------------------------------------------------------------------------------------------------------------------------------------ PHAETHON-CLONE 15 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 16 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 PHAETHON-CLONE 17 ACS/WFC ACCUM WFC1A-51 F606W none none none none 1 N/A 2 15357( 33) - 27-Nov-2017 12:36:14 - [ 14] Summary Form for Proposal 15357 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures V1, WFC1A-512, WFC1B-512, WFCENTER ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, S/C ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, POINTING ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=3 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 14-DEC-2017:12:00:00 AND 14-DEC-2017:16:00:00, BETWEEN 14-DEC-2017:16:00:00 AND 14-DEC-2017:20:30:00, EXP PCS MODE GYRO, GS ACQ SCENARIO BASE1B3, GS ACQ SCENARIO ONEB1B3, GSPAIR N1ZH000490F20000000000F0, GSPAIR N20V000007F10000000000F0, NEW ALIGNMENT, NEW OBSET, ORIENT 13D TO 13 D, POS TARG -101.61211890107228, -6.640374935548657, POS TARG -101.612119, 7.640370, POS TARG -102.11211890107228, -7.140374935548657, POS TARG -102.112119, -7.140375, POS TARG 102.11211890107228, 7.140374935548657, POS TARG 102.112119, 7.140375, POS TARG 102.612120, 7.640370, POS TARG 159.208212, 255.030697, POS TARG 213.7872, 164.2088, POS TARG 313.9606, 159.3813, POS TARG 363.858388, 249.573103, SAA CONTOUR 27, SAME ORIENT AS 03, SAME ORIENT AS 13, SEQ 1-17 NON-INT, SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W ------------------------------------------------------------------------------------------------------------------------------------ Target Names PHAETHON-CLONE ------------------------------------------------------------------------------------------------------------------------------------