14204( 5) - 10-Jul-2015 11:36:56 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14204 Version: 5 Check-in Time: 10-Jul-2015 11:36:56 STScI Edit Number: 3 Title Multiple stellar populations in two young Large Magellanic Cloud clusters: NGC1755 and NGC1866 ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Antonino Paolo Milone Australian National University Y CoI: Dr. Luigi R. Bedin Osservatorio Astronomico di Padova N CoI: Prof. Giampaolo Piotto Universita degli Studi di Padova N CoI: Dr. Anna Fabiola Marino Australian National University N CoI: Prof. Helmut Jerjen Australian National University N CoI: Dr. Jay Anderson Space Telescope Science Institute N CoI: Dr. Franca D'Antona INAF, Osservatorio Astronomico di Roma N ------------------------------------------------------------------------------------ Abstract Multiple sequences are present in the CMD of nearly all the old Galactic globular clusters (GCs) and correspond to multiple populations with different helium and light-elements abundance. Multiple populations are not a peculiarity of old clusters, indeed extended main-sequence turn off (eMSTO) have been detected in most of the analyzed intermediate-age clusters in the Magellanic Clouds with age of ~1-2 Gyr. The conditions under which GCs experience the formation of multiple populations remain controversial. An unique angle on this problem can be provided by the young star clusters but the many investigations from different techniques reported no evidence for multiple populations in clusters younger than $\sim$1\, Gyr to date. Surprisingly, we have recently discovered the first case of a $\sim$300-Myr-old cluster with split main sequence and eMSTO. This finding has been possible thanks to the use of UVIS photometry in the appropriate F336W and F814W filters. To properly constraint the multipopulation phenomenon in young clusters, we propose deep UVIS imaging of the $\sim$150 Myrs-old LMC star clusters NGC1866 and NGC1755 which, according to the analysis of archive {\it HST} data are excellent candidates to host multiple populations. The proposed observations will allow us to understand if multiple populations are present in very-young LMC clusters. We will be able to measure the age difference between the populations with errors of less than 20\, Myr and detect very small He and CNO differences. NGC1755 and NGC1866 have different masses, therefore the presence or the absence of multiple sequences in their CMDs will give information on the minimum mass required for a cluster to host multiple populations thus providing fundamental clues on the formation mechanism. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a proposal aimed at obtaining high accuracy photometry of the MC 14204( 5) - 10-Jul-2015 11:36:56 - [ 2] clusters NGC 1755 and NGC1866 in the WFC3/UVIS/F336W and WFC3/UVIS/F814W bands. ------------------------------------------------------------------------------------ 14204( 5) - 10-Jul-2015 11:36:56 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1866 STELLAR CLUSTER, RA=05H13M38.9200S, J2000 V = 9.73 GLOBULAR CLUSTER DEC=-65D27'52.75" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1866-SFT STELLAR CLUSTER, RA=05H13M56.0000S, J2000 V = 9.73 GLOBULAR CLUSTER DEC=-65D26'15.00" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1755 STELLAR CLUSTER, RA=04H55M20.0000S, J2000 V = 9.85 GLOBULAR CLUSTER DEC=-68D12'18.00" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1755-SF STELLAR CLUSTER, RA=04H55M10.0000S, J2000 V = 9.85 GLOBULAR CLUSTER DEC=-68D12'4.00" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 14204( 5) - 10-Jul-2015 11:36:56 - [ 4] Visit: 01 Visit Requirements: SCHED 100%; ORIENT 174D TO 176 D On Hold Comments: Additional Comments: NGC-1866 - part 1 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 NGC-1866-SF WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; PAR 2 T S ER S) WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1866-SF ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 T S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1866-SF WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 T S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1866-SF ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 T S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1866-SF WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 T S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1866-SF ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 T S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1866-SF WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 T S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1866-SF ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 T S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1866-SFT 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866-SFT 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1866-SFT 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866-SFT 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866-SFT 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866-SFT 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866-SFT 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866-SFT 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 5] Visit: 02 Visit Requirements: SCHED 100%; SAME ORIENT AS 01 On Hold Comments: Additional Comments: NGC-1866 - part 2 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 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; PAR 2 S ER S) WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1866 ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1866 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1866 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1866 ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1866 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1866 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 6] Visit: 03 Visit Requirements: SCHED 100%; ORIENT 90D TO 90D FROM 01 On Hold Comments: Additional Comments: NGC-1866 - part 3 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 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; PAR 2 S ER S) WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1866 ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1866 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1866 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1866 ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1866 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1866 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 7] Visit: 04 Visit Requirements: SCHED 100%; ORIENT -90D TO -90D FROM 01 On Hold Comments: Additional Comments: NGC-1866 - part 4 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 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; PAR 2 S ER S) WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1866 ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1866 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1866 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1866 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1866 ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1866 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1866 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1866 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1866 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1866 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 8] Visit: 05 Visit Requirements: SCHED 100%; ORIENT 204D TO 206 D On Hold Comments: Additional Comments: NGC-1755 - part 2 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 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; GS ACQ S ER S) SCENARIO BASE1B3; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1755 ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1755 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1755 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1755 ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1755 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1755 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER 14204( 5) - 10-Jul-2015 11:36:56 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 10] Visit: 06 Visit Requirements: SCHED 100%; ORIENT 90D TO 90D FROM 05 On Hold Comments: Additional Comments: NGC-1755 - part 4 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 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; GS ACQ S ER S) SCENARIO BASE1B3; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1755-SF ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1755-SF ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1755-SF ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1755-SF ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755-SF 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1755-SF 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1755-SF 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755-SF 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755-SF 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755-SF 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755-SF 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER 14204( 5) - 10-Jul-2015 11:36:56 - [ 11] 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755-SF 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 12] Visit: 07 Visit Requirements: SCHED 100%; ORIENT 180D TO 180D FROM 05 On Hold Comments: Additional Comments: NGC-1755 - part 3 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 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; GS ACQ S ER S) SCENARIO ONEB1B3; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1755 ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1755 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1755 ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1755 WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1755 ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1755 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1755 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER 14204( 5) - 10-Jul-2015 11:36:56 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 14] Visit: 08 Visit Requirements: SCHED 100%; ORIENT -90D TO -90D FROM 05 On Hold Comments: Additional Comments: NGC-1755 - part a 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 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 90 S (90 POS TARG -3, -3; GS ACQ S ER S) SCENARIO BASE1B3; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1755-SF ACS/WFC ACCUM WFCENTER F814W FLASH=16 1 42 S (42 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG -3, -3; PAR 4 S ER S) WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1755-SF ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F336W FLASH=8 1 711 S (711 POS TARG 0, 0; PAR 6 S ER S) WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-1755-SF ACS/WFC ACCUM WFCENTER F475W 1 665 S (665 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC-1755-SF WFC3/UVI ACCUM UVIS-CENT F814W FLASH=8 1 678 S (678 POS TARG +3, +3; PAR 8 S ER S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC-1755-SF ACS/WFC ACCUM WFCENTER F814W 1 533 S (533 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755-SF 1 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER NGC-1755-SF 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A NGC-1755-SF 3 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755-SF 4 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755-SF 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none none 1 N/A S TER NGC-1755-SF 6 ACS/WFC ACCUM WFCENTER F475W none none none none 1 N/A NGC-1755-SF 7 WFC3/UVI ACCUM UVIS-CEN F814W none none none none 1 N/A S TER 14204( 5) - 10-Jul-2015 11:36:56 - [ 15] 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1755-SF 8 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A 14204( 5) - 10-Jul-2015 11:36:56 - [ 16] Summary Form for Proposal 14204 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS-CENTER, WFCENTER ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=16, FLASH=8 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, GS ACQ SCENARIO ONEB1B3, ORIENT -90D TO -90D FROM 01, ORIENT -90D TO -90D FROM 05, ORIENT 174D TO 176 D, ORIENT 180D TO 180D FROM 05, ORIENT 204D TO 206 D, ORIENT 90D TO 90D FROM 01, ORIENT 90D TO 90D FROM 05, PAR 2 WITH 1, PAR 4 WITH 3, PAR 6 WITH 5, PAR 8 WITH 7, POS TARG +3, +3, POS TARG -3, -3, POS TARG 0, 0, SAME ORIENT AS 01, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F336W, F475W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC-1755, NGC-1755-SF, NGC-1866, NGC-1866-SFT ------------------------------------------------------------------------------------------------------------------------------------