14190( 3) - 17-Aug-2016 10:31:49 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14190 Version: 3 Check-in Time: 17-Aug-2016 10:31:49 STScI Edit Number: 0 Title Trickles of Accretion: Catching a Final Glimpse of Gas in the Disk ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Nuria Calvet University of Michigan Y CoI: Dr. Laura D. Ingleby Boston University N CoI: Dr. Jesus Hernandez Centro de Investigaciones de Astronomia N CoI: Dr. Cesar Briceno National Optical Astronomy Observatory - N CTIO ------------------------------------------------------------------------------------ Abstract The final stages of accretion are complicated to study because very small accretion rates cannot be detected against bright chromospheric emission. Currently, it is not clear what causes accretion to turn off. While the gas has been difficult to observe in the past, new observations of H2 in far-ultraviolet spectra have proved to be sensitive probes of hot accreting disk gas. We propose to look for gas in a sample of sources which have evidence for remaining dust in the disk, yet lack evidence for accretion in the convential tracers (e.g. Halpha and UV excess). We will observe this sample using the Advanced Camera for Surveys/Solar Blind Channel (ACS/SBC) PR130L FUV prism. Similar observations have shown that, while low resolution, the ACS/SBC prism is extremely sensitive to small quantities of gas in circumstellar disks, more sensitive than common accretion diagnostics. We will determine whether or not these sources have any gas remaining in the disk, providing key constraints for disk dissipation theories. ------------------------------------------------------------------------------------ Observations Description ------------------------ We follow an observing strategy which was successful in previous ACS/SBC observations of T Tauri stars. For each object, we will obtain an FUV spectrum and a brief FUV image for wavelength calibration. Each target will require one orbit of observations in which we will spend 100 - 200s (exposure times vary between sources and are slightly longer for dimmer or more extincted sources) using the F165LP filter and the remaining time, around 2, 400 to 2, 600 seconds, with the PR130L prism. Additional Comments: Visit 2: Health/Safety source is the target CVSO 1335, is mis-identified as an O5, and is actually a M1 as determined from existing spectra. Visit 7: Health/Safety source is the target SO 247, is mis-identified as an O5, and is actually a M5 as determined from existing spectra. Visit 8 Health/Safety source is the target CVSO 95, is mis-identified as an O5, and is actually a M5 as determined from existing spectra. 14190( 3) - 17-Aug-2016 10:31:49 - [ 2] Visit 9: Health/Safety source is the target CVSO 114, is mis-identified as an O5, and is actually a K7 as determined from existing spectra. ------------------------------------------------------------------------------------ 14190( 3) - 17-Aug-2016 10:31:49 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 CVSO-604 STAR, T TAURI STAR RA=05H23M15.5154S, J2000 V = 17.8 DEC=+01D21'14.60" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-1335 STAR, T TAURI STAR RA=05H32M10.1621S, J2000 V = 13.9 DEC=-00D37'12.41" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 SO-697 STAR, T TAURI STAR RA=05H38M44.2320S, J2000 V = 14.02 DEC=-02D40'19.71" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 4 SO-467 STAR, T TAURI STAR RA=05H38M21.1920S, J2000 V = 18.21 DEC=-02D54'11.09" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 5 SO-451 STAR, T TAURI STAR RA=05H38M18.8600S, J2000 V = 16.81 DEC=-02D51'38.84" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 6 SO-435 STAR, T TAURI STAR RA=05H38M17.7830S, J2000 V = 18.14 DEC=-02D40'50.07" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 7 SO-247 STAR, T TAURI STAR RA=05H37M54.8640S, J2000 V = 18.34 DEC=-02D41'9.24" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 8 CVSO-95 STAR, T TAURI STAR RA=05H27M46.5033S, J2000 V = 14.82 DEC=+03D12'15.65" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 9 CVSO-114 STAR, T TAURI STAR RA=05H33M1.7597S, J2000 V = 14.09 DEC=-00D21'1.92" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 10 CVSO-1189 STAR, T TAURI STAR RA=05H29M38.8098S, J2000 V = 17.47 DEC=-01D19'18.08" Reference Frame: ICRS 14190( 3) - 17-Aug-2016 10:31:49 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 11 CVSO-1381 STAR, T TAURI STAR RA=05H32M55.3620S, J2000 V = 16.67 DEC=-01D32'50.58" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 12 CVSO-1231 STAR, T TAURI STAR RA=05H30M3.6900S, J2000 V = 15.5 DEC=-01D55'46.70" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 13 CVSO-115 STAR, T TAURI STAR RA=05H33M6.2300S, J2000 V = 14.8 DEC=-00D42'19.60" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 14190( 3) - 17-Aug-2016 10:31:49 - [ 5] Visit: 01 Visit Requirements: 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 CVSO-604 ACS/SBC ACCUM SBC F165LP 2 100 S (200 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-604 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2426 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-604 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A CVSO-604 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A CVSO-604 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1213.0 S CVSO-604 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1213.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 6] Visit: 02 Visit Requirements: 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 CVSO-1335 ACS/SBC ACCUM SBC F165LP 2 20 S (40 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-1335 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2586 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-1335 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A CVSO-1335 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A CVSO-1335 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1293.0 S CVSO-1335 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1293.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 7] Visit: 04 Visit Requirements: 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 SO-467 ACS/SBC ACCUM SBC F165LP 2 100 S (200 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SO-467 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2426 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 | ------------------------------------------------------------------------------------------------------------------------------------ SO-467 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A SO-467 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A SO-467 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1213.0 S SO-467 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1213.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 8] Visit: 05 Visit Requirements: 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 SO-451 ACS/SBC ACCUM SBC F165LP 2 75 S (150 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SO-451 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2476 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 | ------------------------------------------------------------------------------------------------------------------------------------ SO-451 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A SO-451 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A SO-451 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1238.0 S SO-451 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1238.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 9] Visit: 06 Visit Requirements: 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 SO-435 ACS/SBC ACCUM SBC F165LP 2 100 S (200 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SO-435 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2426 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 | ------------------------------------------------------------------------------------------------------------------------------------ SO-435 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A SO-435 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A SO-435 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1213.0 S SO-435 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1213.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 10] Visit: 08 Visit Requirements: 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 CVSO-95 ACS/SBC ACCUM SBC F165LP 2 100 S (200 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-95 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2426 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-95 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A CVSO-95 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A CVSO-95 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1213.0 S CVSO-95 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1213.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 11] Visit: 09 Visit Requirements: 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 CVSO-114 ACS/SBC ACCUM SBC F165LP 2 20 S (40 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-114 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2586 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-114 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A CVSO-114 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A CVSO-114 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1293.0 S CVSO-114 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1293.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 12] Visit: 10 Visit Requirements: 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 CVSO-1189 ACS/SBC ACCUM SBC F165LP 2 75 S (150 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-1189 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2476 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-1189 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 N/A CVSO-1189 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 N/A CVSO-1189 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1238.0 S CVSO-1189 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1238.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 13] Visit: 11 Visit Requirements: 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 CVSO-1381 ACS/SBC ACCUM SBC F165LP 2 75 S see below (174 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-1381 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2452 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-1381 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 87.0 S CVSO-1381 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 87.0 S CVSO-1381 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1226.0 S CVSO-1381 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1226.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 14] Visit: 12 Visit Requirements: 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 CVSO-1231 ACS/SBC ACCUM SBC F165LP 2 100 S see below (412 S) Comments: The BOT includes an "unknown" object in the field: Unknown, SBC, S1LR025944, 05 30 2.3108, -01 55 30.94, GSC2, We have checked in our CVSO photometric survey, as wel as in DSS and 2MASS images. There is no source at that position. ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-1231 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2212 S) Comments: The BOT includes an "unknown" object in the field: Unknown, SBC, S1LR025944, 05 30 2.3108, -01 55 30.94, GSC2, We have checked in our CVSO photometric survey, as wel as in DSS and 2MASS images. There is no source at that position. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-1231 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 206.0 S CVSO-1231 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 206.0 S CVSO-1231 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1106.0 S CVSO-1231 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1106.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 15] Visit: 13 Visit Requirements: 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 CVSO-115 ACS/SBC ACCUM SBC F165LP 2 100 S see below (412 S) Comments: The BOT indicates that two objects exceed the Local Health and Safety, assuming that they are unreddeneded O5 stars. These stars are RA DEC V B-V S1LN000172, 05 33 4.3140, -00 42 18.71, GSC2, 14.18, 15.40, 14.74, 0.65 S1LN012378, 05 33 6.2421, -00 42 19.96, GSC2, 13.57, 15.85, 14.71, 1.35 The first star of this list has a B-V color of 0.65. The 3D maps of the dust distribution combining Pan-STARRS 1 and 2MASS photometry (Green et al 2015, ApJ 810, 25) indicate a color excess E(B-V) ~ 0.15 in the direction of this star. Using the observed B-V color and standard star photometry (Kenyon & Hartmann 1995, ApJS 101, 117) yields a spectral type of F7 for this star, with V limiting magnitudes 6.7 (F165LP, Table 7.4 of ACS Handbook) and 5 (PR130L), way above the observed V magnitude. The second star in the BOT list is the target. It has a spectral type of M0 (Briceno et al 2005, AJ, 129, 907) so its V magnitude (14.7) is way below the bright limit (3 -4). ------------------------------------------------------------------------------------------------------------------------------------ 2 CVSO-115 ACS/SBC ACCUM SBC PR130L 2 1000 S see below (2212 S) Comments: The BOT found all sources in the field safe. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-115 1 ACS/SBC ACCUM SBC F165LP none none 1 none 1 206.0 S CVSO-115 1 ACS/SBC ACCUM SBC F165LP none none 2 none 1 206.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 16] 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 | ------------------------------------------------------------------------------------------------------------------------------------ CVSO-115 2 ACS/SBC ACCUM SBC PR130L none none 1 none 1 1106.0 S CVSO-115 2 ACS/SBC ACCUM SBC PR130L none none 2 none 1 1106.0 S 14190( 3) - 17-Aug-2016 10:31:49 - [ 17] Summary Form for Proposal 14190 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F165LP, PR130L ------------------------------------------------------------------------------------------------------------------------------------ Target Names CVSO-114, CVSO-115, CVSO-1189, CVSO-1231, CVSO-1335, CVSO-1381, CVSO-604, CVSO-95, SO-435, SO-451, SO-467 ------------------------------------------------------------------------------------------------------------------------------------