15960( 15) - 22-Jul-2020 10:10:44 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15960 Version: 15 Check-in Time: 22-Jul-2020 10:10:44 STScI Edit Number: 7 Title Detecting Isolated Black Holes through Astrometric Microlensing ------------------------------------------------------------------------------------ Type Cycle GO 27 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Kailash C. Sahu Space Telescope Science Institute Y CoI: Dr. Jay Anderson Space Telescope Science Institute N CoI: Dr. Andrea Bellini Space Telescope Science Institute N CoI: Dr. Howard E. Bond The Pennsylvania State University N CoI: Dr. Thomas M. Brown Space Telescope Science Institute N CoI: Dr. Annalisa Calamida Space Telescope Science Institute N CoI: Dr. Stefano Casertano Space Telescope Science Institute N CoI: Dr. Noe Kains Barnard College N CoI: Dr. Andrzej Udalski Warsaw University N ------------------------------------------------------------------------------------ Abstract A significant fraction of the mass of an old stellar population should be in the form of isolated black holes (BHs). Yet there has never been an unambiguous detection of a solitary BH. The only technique available to detect isolated BHs is astrometric microlensing--relativistic deflection of light from background stars. We have carried out 2 HST programs aimed at the first detection of isolated BHs through astrometric microlensing. Our first program was a multi-year program where we monitored 5 microlensing events with T>100 days in the Galactic bulge. We detected astometric deflections, but the inferered masses for all these events are <0.5 Msun, indicating that these lenses are low-mass stars with small relative proper motions. Our second program was a large multi-cycle program where we monitored ~3 million stars in the Galactic bulge for 3 years to simultaneously detect microlensing events and deterimne their astrometric shifts. We have detected a large number of microlensing events. However, once again, none of them show appreciable astrometric deflections indicative of massive BHs. Our results imply that either isolated BHs are more massive (>10 Msun), or T~100 day events are dominated by low-mass stars moving more slowly, or BHs are much rarer. BHs with mass > 10 Msun are expected to have T>300 days, and such very-long duration events are extremely unlikely to be caused by low-mass stars. Monitoring a few T>300-day events thus offers the last but most promising opportunity to detect isolated BHs, and distinguish between the above possibilities. After the recent upgrades, OGLE detects six T>300 days events each year, here we propose to monitor 4 such events. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will employ the same observational strategy we have followed earlier. Basically, we will image each field using WFC3, primarily with the F814W filter, but also with F606W. We will employ a 6-point dithering pattern, where 15960( 15) - 22-Jul-2020 10:10:44 - [ 2] we will observe the target star and the reference stars at a variety of pixel phases, thereby allowing us to construct an exquisite model of the PSF, and also randomize any remaining (small) systematic errors related to pixelization. Our dithers will also involve offsets of ~100 pixels, so that we will observe the target star at different places on the detector, so that any remaining distortion errors will average out. We expect such errors to be small (< 0.01 pixel), but randomizing them will be worthwhile. The procedure described here does not require the observations at different epochs to be taken in the same ORIENT, which makes the scheduling easier. In a rich stellar field such as the Galactic bulge, there is always a large number of reference stars available in an WFC3 field, making it possible to achieve the highest possible astrometric accuracy. We will also image the field in the F606W and F814W filters. If there is blending, then the centroid shift is expected to be color dependent; V -band observations will provide additional help in evaluating the possible color-dependent blending contribution. The combined V and I-band observations will require one orbit per target at each epoch. We will observe at 5 different epochs which will be adequate to separate the proper motions from the deflections caused by lensing. For each event, we will obtain 2 observations in cycle 25, 2 observations in cycle 26, and 1 observation in cycle 27. These observations need to be considered as ToO since the targets will be chosen after we find suitable candidates from OGLE alerts. ------------------------------------------------------------------------------------ 15960( 15) - 22-Jul-2020 10:10:44 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2017-BL EXT-STAR, A0-A3 III-I RA=17H41M35.9300S, J2000 V = 19.25 +/- 2 G-0302 DEC=-34D33'19.30" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 1 OGLE-2017-BL EXT-STAR, A0-A3 III-I RA=17H54M9.5600S, J2000 V = 19 +/- 2 G-328 DEC=-28D44'52.60" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2019-BL EXT-STAR, A0-A3 III-I RA=17H47M1.6700S, J2000 V = 19.66 +/- 2 G-1000 DEC=-26D30'15.90" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2019-BL EXT-STAR, A0-A3 III-I RA=18H10M4.4700S, J2000 V = 19.25 +/- 2 G-1080 DEC=-27D52'1.40" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 15960( 15) - 22-Jul-2020 10:10:44 - [ 4] Visit: 01 Visit Requirements: ORIENT 86D TO 98 D; BETWEEN 20-OCT-2019 AND 30-NOV-2019 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 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=7 1 200 S (200 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 POS TARG 3.95, 0.1 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 4 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 POS TARG 2.79, 2.79 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 POS TARG 0, 3.95 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 6 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 POS TARG -2.79, 2.8 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 7 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 POS TARG -3.95, 0 LG-1000 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 8 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=8 1 275 S (275 POS TARG -2.68, -2.79 LG-1000 S 1C-SUB 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2019-BLG-1000 1 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1000 2 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1000 3 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1000 4 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1000 5 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1000 6 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2019-BLG-1000 7 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1000 8 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 6] Visit: 02 Visit Requirements: BETWEEN 04-APR-2020 AND 12-APR-2020 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 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 216 S (216 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG 3.95, 0.1 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 4 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG 2.79, 2.79 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG 0, 3.95 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 6 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG 0, 3.95 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 7 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG -2.79, 2.8 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 8 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG -3.95, 0 LG-1080 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 9 OGLE-2019-B WFC3/UVI ACCUM UVIS2-C1K F606W CR-SPLIT=NO, FLASH=12 1 216 S (216 POS TARG -2.68, -2.79 LG-1080 S 1C-SUB 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2019-BLG-1080 1 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 2 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 3 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 4 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 7] 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2019-BLG-1080 5 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 6 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 7 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 8 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB OGLE-2019-BLG-1080 9 WFC3/UVI ACCUM UVIS2-C1 F606W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 8] Visit: 03 Visit Requirements: ORIENT 93.052D TO 93.052 D; BETWEEN 01-AUG-2020 AND 31-AUG-2020 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 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG 0, 0; GS ACQ LG-0302 S 1C-SUB S) SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG 3.95, 0 LG-0302 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG 1.97, 3.42 LG-0302 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 4 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG -1.98, 3.42 LG-0302 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG -3.95, -0.02 LG-0302 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 6 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG -1.96, -3.43 LG-0302 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 7 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W FLASH=7 1 320 S (320 POS TARG 2.00, -3.41 LG-0302 S 1C-SUB 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2017-BLG-0302 1 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-0302 2 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-0302 3 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-0302 4 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-0302 5 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-0302 6 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-0302 7 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 9] Visit: 04 Visit Requirements: ORIENT 267.38D TO 267.38 D; BETWEEN 31-JAN-2020 AND 19-FEB-2020; VISIBILITY INTERVAL 51.7 M 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 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 0, 0; GS ACQ LG-328 S 1C-SUB S) SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 SAME POS AS 1 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 0.1, 0.1 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 4 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.79, 2.79 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.69, 2.69 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 6 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.79, 2.59 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 7 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.69, 2.49 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 8 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 POS TARG -2.69, 2.49 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 9 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 POS TARG -2.59, -2.79 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 10 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.49, -2.69 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 11 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.59, -2.59 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 12 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.49, -2.49 LG-328 S 1C-SUB 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 | ------------------------------------------------------------------------------------------------------------------------------------ 15960( 15) - 22-Jul-2020 10:10:44 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2017-BLG-328 1 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 2 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 3 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 4 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 5 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 6 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 7 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 8 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 9 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 10 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 11 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 12 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 11] Visit: 54 Visit Requirements: ORIENT 267.38D TO 267.38 D; BEFORE 09-MAR-2020:00:00:00 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 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 0, 0; GS ACQ LG-328 S 1C-SUB S) SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 SAME POS AS 1 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 0.1, 0.1 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 4 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.79, 2.79 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.69, 2.69 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 6 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.79, 2.59 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 7 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.69, 2.49 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 8 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 POS TARG -2.69, 2.49 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 9 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 POS TARG -2.59, -2.79 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 10 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.49, -2.69 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 11 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.59, -2.59 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 12 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.49, -2.49 LG-328 S 1C-SUB 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 | ------------------------------------------------------------------------------------------------------------------------------------ 15960( 15) - 22-Jul-2020 10:10:44 - [ 12] 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2017-BLG-328 1 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 2 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 3 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 4 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 5 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 6 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 7 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 8 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 9 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 10 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 11 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 12 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 13] Visit: 55 Visit Requirements: ORIENT 267.38D TO 267.38 D 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 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 0, 0; GS ACQ LG-328 S 1C-SUB S) SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 SAME POS AS 1 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 3 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 0.1, 0.1 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 4 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.79, 2.79 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 5 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.69, 2.69 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 6 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.79, 2.59 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 7 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.69, 2.49 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 8 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 POS TARG -2.69, 2.49 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 9 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F555W CR-SPLIT=NO, FLASH=12 1 173 S (173 POS TARG -2.59, -2.79 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 10 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG -2.49, -2.69 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 11 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.59, -2.59 LG-328 S 1C-SUB S) ------------------------------------------------------------------------------------------------------------------------------------ 12 OGLE-2017-B WFC3/UVI ACCUM UVIS2-C1K F814W CR-SPLIT=NO, FLASH=12 1 125 S (125 POS TARG 2.49, -2.49 LG-328 S 1C-SUB 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 | ------------------------------------------------------------------------------------------------------------------------------------ 15960( 15) - 22-Jul-2020 10:10:44 - [ 14] 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 | ------------------------------------------------------------------------------------------------------------------------------------ OGLE-2017-BLG-328 1 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 2 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 3 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 4 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 5 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 6 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 7 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 8 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 9 WFC3/UVI ACCUM UVIS2-C1 F555W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 10 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 11 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB OGLE-2017-BLG-328 12 WFC3/UVI ACCUM UVIS2-C1 F814W none none none none 1 N/A S K1C-SUB 15960( 15) - 22-Jul-2020 10:10:44 - [ 15] Summary Form for Proposal 15960 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2-C1K1C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, FLASH=12, FLASH=7, FLASH=8 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BEFORE 09-MAR-2020:00:00:00, BETWEEN 01-AUG-2020 AND 31-AUG-2020, BETWEEN 04-APR-2020 AND 12-APR-2020, BETWEEN 20-OCT-2019 AND 30-NOV-2019, BETWEEN 31-JAN-2020 AND 19-FEB-2020, GS ACQ SCENARIO BASE1B3, ORIENT 267.38D TO 267.38 D, ORIENT 86D TO 98 D, ORIENT 93.052D TO 93.052 D, POS TARG -1.96, -3.43, POS TARG -1.98, 3.42, POS TARG -2.49, -2.69, POS TARG -2.59, -2.79, POS TARG -2.68, -2.79, POS TARG -2.69, 2.49, POS TARG -2.79, 2.59, POS TARG -2.79, 2.8, POS TARG -3.95, -0.02, POS TARG -3.95, 0, POS TARG 0, 0, POS TARG 0, 3.95, POS TARG 0.1, 0.1, POS TARG 1.97, 3.42, POS TARG 2.00, -3.41, POS TARG 2.49, -2.49, POS TARG 2.59, -2.59, POS TARG 2.69, 2.69, POS TARG 2.79, 2.79, POS TARG 3.95, 0, POS TARG 3.95, 0.1, SAME POS AS 1, VISIBILITY INTERVAL 51.7 M ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W, F606W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names OGLE-2017-BLG-0302, OGLE-2017-BLG-328, OGLE-2019-BLG-1000, OGLE-2019-BLG-1080 ------------------------------------------------------------------------------------------------------------------------------------