15298( 5) - 06-Dec-2018 19:37:16 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15298 Version: 5 Check-in Time: 06-Dec-2018 19:37:16 STScI Edit Number: 0 Title The first high resolution image of coronal gas in a starbursting cool core cluster ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Sean Johnson Princeton University Y CoI: Prof. Michael A. McDonald Massachusetts Institute of Technology N CoI: Massimo Gaspari Princeton University N CoI: Dr. John S. Mulchaey Carnegie Institution of Washington N CoI: Prof. Hsiao-Wen Chen University of Chicago N CoI: Prof. Jenny Emma Greene Princeton University N ------------------------------------------------------------------------------------ Abstract Galaxy clusters represent a unique laboratory for directly observing gas cooling and feedback due to their high masses and correspondingly high gas densities and temperatures. Cooling of X-ray gas observed in ~1/3 of clusters, known as cool-core clusters, should fuel star formation at prodigious rates, but such high levels of star formation are rarely observed. Feedback from active galactic nuclei (AGN) is a leading explanation for the lack of star formation in most cool clusters, and AGN power is sufficient to offset gas cooling on average. Nevertheless, some cool core clusters exhibit massive starbursts indicating that our understanding of cooling and feedback is incomplete. Observations of ~10^5 K coronal gas in cool core clusters through OVI emission offers a sensitive means of testing our understanding of cooling and feedback because OVI emission is a dominant coolant and sensitive tracer of shocked gas. Recently, Hayes et al. 2016 demonstrated that synthetic narrow-band imaging of OVI emission is possible through subtraction of long-pass filters with the ACS+SBC for targets at z=0.23-0.29. Here, we propose to use this exciting new technique to directly image coronal OVI emitting gas at high resolution in Abell 1835, a prototypical starbursting cool-core cluster at z=0.252. Abell 1835 hosts a strong cooling core, massive starburst, radio AGN, and at z=0.252, it offers a unique opportunity to directly image OVI at hi-res in the UV with ACS+SBC. With just 15 orbits of ACS+SBC imaging, the proposed observations will complete the existing rich multi-wavelength dataset available for Abell 1835 to provide new insights into cooling and feedback in clusters. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will obtain the first high resolution, synthetic narrow-band imaging of OVI emission from a strong cool core cluster with a central starburst and AGN. These observations will use a new technique to obtain synthetic narrow-band OVI images with the ACS+SBC for objects at z=0.23-0.28 resulting in an unprecedented view of cooling and feedback in the cluster. At z=0.252, the OVI 1031, 1037 doublet emission associated with Abell 1835 serendipitously falls at 1290 Ang, enabling synthetic narrow-band high resolution images of OVI emission with the ACS+SBC for this starbursting cool-core cluster. 15298( 5) - 06-Dec-2018 19:37:16 - [ 2] To obtain OVI images of Abell 1835 we will observe the OVI on-line filter, F125LP, and the off-line filter, F140LP with the ACS+SBC. While the F125LP bandpass does not include geocoronal HI Lya, it does include geocoronal OI emission at 1304 Ang. To minimize the backgrounds in the F125LP observations due to airglow, we will therefore observe F125LP in the portion of each orbit in orbital shadow which reduces OI 1304 Ang emission by a factor of ~150. Consequently, the dominant source of background will be Lya and UV continuum associated with the cluster. In addition, we request that our observations are scheduled so that the SBC amplifiers have been switched off for at least 24 hours. This cool-down period reduces the dark current of the detectors enabling more sensitive imaging outside of the cluster center where dark current will dominate the backgrounds. For the same reason, we will schedule our ACS+SBC observations in visits of no more than two orbits. We will carry out the observations with a 4" dither pattern to aid in artifact rejection and mitigate low-frequency flat fielding errors while maintaining 1/3 pixel sampling To directly measure the continuum contribution to the synthetic OVI narrow-band, we also require imaging in F150LP. When combined with the F140LP, this will enable observations of the UV continuum emission levels through a synthetic narrow-band in a line-free continuum region at an observed wavelength of ~1400 Ang. In order to place a 2-sigma limit on the presence of OVI emission with surface brightness corresponding to the observed star formation rate, we will require 12 ks of observation in each of F125LP, F140LP, and F150LP bands as discussed in the Phase I proposal. The BOT returned a warning due to object N526005398. This object is the target, Abell 1835 and the BOT adopts the observed integrated magnitude for the galaxy and assumes an SED of an O5V star. The actual SED of the galaxy is substantially redder and the object does not violate the bright limits. To verify this, we retrieved the GALEX magnitudes of Abell 1835 (aka N526005398) and found AB(fuv)=19.27 and AB(nuv)=19.07 confirming that the object posses no safety risk to the instrument. ------------------------------------------------------------------------------------ 15298( 5) - 06-Dec-2018 19:37:16 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 ABELL1835 CLUSTER OF GALAXIES, RA=14H01M2.0600S +/- 0.1", J2000 Z = V = 17.0 fuv=19.3 nuv=19.1 u=17.96, BCM, COOLING FLOW DEC=+02D52'42.49" +/- 0.1" 0.25196 r=16.14 Reference Frame: ICRS Extended: YES Comments: Starburst in AB1835 BCG ------------------------------------------------------------------------------------------------------------------------------------ 15298( 5) - 06-Dec-2018 19:37:16 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 4 Line_Spacing 4 Coordinate_Frame POS-TARG Pattern_Orient 20.02 Angle_Between_Sides 63.65 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 4 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 44.4 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 15298( 5) - 06-Dec-2018 19:37:16 - [ 5] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. If any additional exposure time is available because the guide star acquisition / re-acquisition are carried out in accultation, we request that this time is allocated to F150LP 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 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 1 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 294 S (588 PATTERN 2 2 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 3 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 4 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 300 S (600 PATTERN 2 4 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F125LP 1 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 2 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 3 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 4 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F150LP 1 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F150LP 2 none none none 1 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 1 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 2 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 3 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 4 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F150LP 1 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F150LP 2 none none none 2 N/A 15298( 5) - 06-Dec-2018 19:37:16 - [ 6] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. If any additional exposure time is available because the guide star acquisition / re-acquisition are carried out in accultation, we request that this time is allocated to F150LP 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 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 1 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 294 S (588 PATTERN 2 2 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 3 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 4 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 300 S (600 PATTERN 2 4 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F125LP 1 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 2 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 3 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 4 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F150LP 1 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F150LP 2 none none none 1 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 1 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 2 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 3 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 4 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F150LP 1 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F150LP 2 none none none 2 N/A 15298( 5) - 06-Dec-2018 19:37:16 - [ 7] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. If any additional exposure time is available because the guide star acquisition / re-acquisition are carried out in accultation, we request that this time is allocated to F150LP in orbit 1 and F140LP in orbit 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 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 1 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 294 S (588 PATTERN 2 2 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 3 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 4 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 303 S (606 PATTERN 2 4 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F125LP 1 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 2 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 3 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 4 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F150LP 1 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F150LP 2 none none none 1 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 1 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 2 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 3 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 4 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F140LP 1 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F140LP 2 none none none 2 N/A 15298( 5) - 06-Dec-2018 19:37:16 - [ 8] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. If any additional exposure time is available because the guide star acquisition / re-acquisition are carried out in accultation, we request that this time is allocated to F140LP 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 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 1 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 296 S (592 PATTERN 2 2 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ABELL1835 ACS/SBC ACCUM SBC F125LP 1 385 S SHADOW; PATTERN 1 3 (1540 S) Comments: To minimize the dark current, please schedule after the ACS has been switched off for 24 hours ------------------------------------------------------------------------------------------------------------------------------------ 4 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 305 S (610 PATTERN 2 4 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F125LP 1 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 2 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 3 none none none 1 N/A ABELL1835 1 ACS/SBC ACCUM SBC F125LP 4 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F140LP 1 none none none 1 N/A ABELL1835 2 ACS/SBC ACCUM SBC F140LP 2 none none none 1 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 1 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 2 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 3 none none none 2 N/A ABELL1835 3 ACS/SBC ACCUM SBC F125LP 4 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F140LP 1 none none none 2 N/A ABELL1835 4 ACS/SBC ACCUM SBC F140LP 2 none none none 2 N/A 15298( 5) - 06-Dec-2018 19:37:16 - [ 9] Visit: 05 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. 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 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 400 S PATTERN 1 1 see below (2592 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 400 S PATTERN 1 2 see below (2724 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F150LP 1 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F150LP 2 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F150LP 3 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F150LP 4 none none none 1 648.0 S ABELL1835 2 ACS/SBC ACCUM SBC F140LP 1 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F140LP 2 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F140LP 3 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F140LP 4 none none none 2 681.0 S 15298( 5) - 06-Dec-2018 19:37:16 - [ 10] Visit: 06 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. 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 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 400 S PATTERN 1 1 see below (2592 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 400 S PATTERN 1 2 see below (2724 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F140LP 1 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 2 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 3 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 4 none none none 1 648.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 1 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 2 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 3 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 4 none none none 2 681.0 S 15298( 5) - 06-Dec-2018 19:37:16 - [ 11] Visit: 07 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. 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 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 400 S PATTERN 1 1 see below (2592 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 400 S PATTERN 1 2 see below (2724 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F140LP 1 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 2 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 3 none none none 1 648.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 4 none none none 1 648.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 1 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 2 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 3 none none none 2 681.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 4 none none none 2 681.0 S 15298( 5) - 06-Dec-2018 19:37:16 - [ 12] Visit: 08 Visit Requirements: On Hold Comments: Additional Comments: We request that the visit is scheduled after the SBC amplifiers have been turned off for at least 24 hours in order to minimize dark current. 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 ABELL1835 ACS/SBC ACCUM SBC F140LP 1 100 S PATTERN 1 1-2 see below (1152 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL1835 ACS/SBC ACCUM SBC F150LP 1 100 S see below (1152 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL1835 1 ACS/SBC ACCUM SBC F140LP 1 none none none 1 288.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 2 none none none 1 288.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 3 none none none 1 288.0 S ABELL1835 1 ACS/SBC ACCUM SBC F140LP 4 none none none 1 288.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 1 none none none 1 288.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 2 none none none 1 288.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 3 none none none 1 288.0 S ABELL1835 2 ACS/SBC ACCUM SBC F150LP 4 none none none 1 288.0 S 15298( 5) - 06-Dec-2018 19:37:16 - [ 13] Summary Form for Proposal 15298 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1, PATTERN 1 1-2, PATTERN 1 2, PATTERN 1 3, PATTERN 2 2, PATTERN 2 4, SHADOW ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F125LP, F140LP, F150LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names ABELL1835 ------------------------------------------------------------------------------------------------------------------------------------