Proposal 11382 (STScI Edit Number: 1, Created: Friday, January 18, 2008 8:28:40 AM EST) - Overview 11382 - STIS SMOV4 CCD Functional Cycle: 17, Proposal Category: SM4/STIS (Availability Mode: RESTRICTED) INVESTIGATORS Name Dr. Mary Elizabeth Kaiser (PI) Dr. Charles R. Proffitt (CoI) Institution The Johns Hopkins University Computer Sciences Corporation E-Mail kaiser@pha.jhu.edu proffitt@stsci.edu VISITS Visit Targets used in Visit Configurations used in Visit Orbits Used Last Orbit Planner Run 01 STIS/CCD 1 18-Jan-2008 08:26:59.0 OP Current with Visit? yes STIS/CCD 1 18-Jan-2008 08:27:36.0 yes STIS/CCD 1 18-Jan-2008 08:27:50.0 yes STIS/CCD 2 18-Jan-2008 08:28:30.0 yes 02 03 04 BIAS NONE BIAS NONE BIAS DARK BIAS NONE 5 Total Orbits Used ABSTRACT This proposal corresponds to the SMOV4 activity summary, STIS06. Proposal 11382 (STScI Edit Number: 1, Created: Friday, January 18, 2008 8:28:40 AM EST) - Overview This purpose of this activity is to measure the baseline performance and commandability of the CCD subsystem. This test assesses several CCD functions and performance characteristics, including: bias levels, read noise, dark current, CTE, and gain. Bias, dark, and flat field exposures are executed to achieve these goals. Full frame and binned (2 x 1, 1 x 2, and 2 x 2) observations are made. Biases are taken at gain=1 and read-out in subarray mode to support target acquisition and peakup modes. Only the primary amplifier (Amp D) is used. Dark exposures are made outside the SAA (as is standard). All exposures are internals OBSERVING DESCRIPTION The visit structure outlined below has been constructed by filling the full orbit with internal exposures. Visits 1 and 2 acquire bias frames and flats at the four commandable gain settings,1, 2, 4, and 8 e/DN. At the available gain settings (gain=2,8) 31 bias frames are acquired for construction of a superbias with negligible readout noise. At the supported gain settings (gain=1,4) only 21 bias frames are acquired since the remaining frames necessary for construction of a superbias will be acquired as part of the Cycle 17 bias monitoring program. A pair of flats is acquired in camera mode at two signal levels (achieved by using the 50CCD and F25ND3 apertures) at each gain setting. The flats will be analyzed to (1) provide a rough confirmation of the nominal gain calibration and (2) determine if there have been changes in the number or position of cosmetic artifacts, such as the shadows of particles on the detector window. Bias and internal lamp exposures are obtained for binned modes, with binning factors of 2 x 1, 1 x 2, and 2 x 2, for evaluation of read noise, bias level, and gain of the binned settings Biases are acquired using a 100x100 and 1024x32 subarray readout (and gain=4) in support of downstream target acquisitions and peakups. Visit 3 acquires dark frames and bias frames for evaluation of the mean dark current at the operating temperature of the CCD and the identification of hot pixels. 2 Proposal 11382 (STScI Edit Number: 1, Created: Friday, January 18, 2008 8:28:40 AM EST) - Overview Visit 4 acquires spectral flat field data at three different signal levels, spanning a factor of 100 in signal intensity, for evaluation of charge transfer efficiency through the edge response method. In addition 29 biases are taken at gain=1 to enable the construction of superbiases for each of the binned settings used in visit 2. CALIBRATION JUSTIFICATION These data will provide baseline measurements of CCD bias levels, gains, read noise, charge transfer efficiency, dark current levels, and performance verification of binning and subarray readpout capabilities. A rough assessment of changes in flat field features due to dust motes or other particulates is also provided. Numerous bias frames are taken to permit construction of "super bias" frames in which the effects of read noise have been rendered negligible This activity should execute after the STIS CCD anneal activity (STIS-05) and prior to other activities using the STIS CCD. ADDITIONAL COMMENTS DEPENDENCIES: Should be executed after the initial CCD anneal (STIS-05) DURATION: 4 fully packed orbits (Internals) If this activity was planned for occultation periods, it would require 12 orbits of ~1800 seconds duration each. This activity is a precursor to all other STIS CCD activities. 3 Exposures Visit Proposal 11382 - Visit 01 - STIS SMOV4 CCD Functional Proposal 11382, Visit 01, implementation Fri Jan 18 13:28:40 GMT 2008 Diagnostic Status: No Diagnostics Scientific Instruments: STIS/CCD Special Requirements: GYRO MODE 3GOBAD; PARALLEL Comments: Acquire 31 bias frames for construction of a super-bias at a gain of 2, 8 e/DN, 21 bias frames at gain=1,4. Also take two pairs of lamp exposures in camera mode, one pair per signal level, for measurement of flat field features and a rough calibration of the gain. # Label Target Config,Mode,Aperture Spectral Els. Opt. Params. Special Reqs. Groups Exp. Time/[Actual Dur.] Orbit 1 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 0.0 Secs X 21 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] [1] [==>(Copy 12)] [==>(Copy 13)] [==>(Copy 14)] [==>(Copy 15)] [==>(Copy 16)] [==>(Copy 17)] [==>(Copy 18)] [==>(Copy 19)] [==>(Copy 20)] [==>(Copy 21)] 2 Flat field NONE STIS/CCD, ACCUM, 50CCD MIRROR GAIN=1; 0.1 Secs X 2 LAMP=TUNGSTE [==>(Copy 1)] [1] N [==>(Copy 2)] 3 Flat field NONE STIS/CCD, ACCUM, F25ND3 MIRROR GAIN=1; 10.0 Secs X 2 LAMP=TUNGSTE [==>(Copy 1)] [1] N [==>(Copy 2)] Comments: should obtain ~4800 e-/pixel/exposure 4 Proposal 11382 - Visit 01 - STIS SMOV4 CCD Functional Label Bias Target BIAS Config,Mode,Aperture STIS/CCD, ACCUM, DEF Spectral Els. DEF Opt. Params. GAIN=2 Exposures (continued) # 4 5 Flat field NONE STIS/CCD, ACCUM, 50CCD MIRROR GAIN=2; LAMP=TUNGSTE N 5 Special Reqs. Groups Exp. Time/[Actual Dur.] 0.0 Secs X 31 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] [==>(Copy 12)] [==>(Copy 13)] [==>(Copy 14)] [==>(Copy 15)] [==>(Copy 16)] [==>(Copy 17)] [==>(Copy 18)] [==>(Copy 19)] [==>(Copy 20)] [==>(Copy 21)] [==>(Copy 22)] [==>(Copy 23)] [==>(Copy 24)] [==>(Copy 25)] [==>(Copy 26)] [==>(Copy 27)] [==>(Copy 28)] [==>(Copy 29)] [==>(Copy 30)] [==>(Copy 31)] 0.3 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] Orbit [1] [1] Proposal 11382 - Visit 01 - STIS SMOV4 CCD Functional Exposures (continued) # 6 Label Flat field Target NONE Config,Mode,Aperture STIS/CCD, ACCUM, F25ND3 Comments: should obtain ~4800 e-/pixel/exposure 7 Bias BIAS STIS/CCD, ACCUM, DEF Spectral Els. MIRROR DEF Opt. Params. Special Reqs. GAIN=2; LAMP=TUNGSTE N GAIN=4 6 Groups Exp. Time/[Actual Dur.] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 0.0 Secs X 10 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] Orbit [1] [1] Orbit Structure Proposal 11382 - Visit 01 - STIS SMOV4 CCD Functional 7 Exposures Visit Proposal 11382 - Visit 02 - STIS SMOV4 CCD Functional Proposal 11382, Visit 02, implementation Fri Jan 18 13:28:42 GMT 2008 Diagnostic Status: No Diagnostics Scientific Instruments: STIS/CCD Special Requirements: GYRO MODE 3GOBAD Comments: Acquire 31 bias frames for construction of a super-bias at a gain of 4, 8 dn e/DN. Also take two lamp exposures in camera mode for rough calibration of the gain. Take binned biases and subarray biases. # Label Target Config,Mode,Aperture Spectral Els. Opt. Params. Special Reqs. Groups Exp. Time/[Actual Dur.] Orbit 1 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=4 0.0 Secs X 11 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [1] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] 2 Flat field NONE STIS/CCD, ACCUM, 50CCD MIRROR GAIN=4; 0.4 Secs X 2 LAMP=TUNGSTE [==>(Copy 1)] [1] N [==>(Copy 2)] 3 Flat field NONE STIS/CCD, ACCUM, F25ND3 MIRROR GAIN=4; 10.0 Secs X 2 LAMP=TUNGSTE [==>(Copy 1)] [1] N [==>(Copy 2)] Comments: should obtain ~4800 e-/pixel/exposure 8 Proposal 11382 - Visit 02 - STIS SMOV4 CCD Functional Label Bias Target BIAS Config,Mode,Aperture STIS/CCD, ACCUM, DEF Spectral Els. DEF Opt. Params. GAIN=8 Exposures (continued) # 4 5 Flat field NONE STIS/CCD, ACCUM, 50CCD MIRROR GAIN=8; LAMP=TUNGSTE N 9 Special Reqs. Groups Exp. Time/[Actual Dur.] 0.0 Secs X 31 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] [==>(Copy 12)] [==>(Copy 13)] [==>(Copy 14)] [==>(Copy 15)] [==>(Copy 16)] [==>(Copy 17)] [==>(Copy 18)] [==>(Copy 19)] [==>(Copy 20)] [==>(Copy 21)] [==>(Copy 22)] [==>(Copy 23)] [==>(Copy 24)] [==>(Copy 25)] [==>(Copy 26)] [==>(Copy 27)] [==>(Copy 28)] [==>(Copy 29)] [==>(Copy 30)] [==>(Copy 31)] 0.4 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] Orbit [1] [1] Proposal 11382 - Visit 02 - STIS SMOV4 CCD Functional # 6 Label Flat field Target NONE Config,Mode,Aperture STIS/CCD, ACCUM, F25ND3 Comments: should obtain ~4800 e-/pixel/exposure 7 binned bias BIAS STIS/CCD, ACCUM, DEF 2x1 Exposures (continued) 8 9 10 11 12 13 14 binned flat 2 NONE x1 binned bias 1x2 BIAS binned flat 1 NONE x2 binned bias 2x2 BIAS binned flat 2 NONE x2 bias subarra BIAS ys 100x100 bias subarra BIAS ys 32x1024 STIS/CCD, ACCUM, F25ND3 STIS/CCD, ACCUM, DEF STIS/CCD, ACCUM, F25ND3 STIS/CCD, ACCUM, DEF STIS/CCD, ACCUM, F25ND3 STIS/CCD, ACCUM, DEF STIS/CCD, ACCUM, DEF Spectral Els. MIRROR DEF MIRROR DEF MIRROR DEF MIRROR DEF DEF Opt. Params. Special Reqs. GAIN=8; LAMP=TUNGSTE N GAIN=1; BINAXIS1=2; BINAXIS2=1 GAIN=1; BINAXIS1=2; BINAXIS2=1; LAMP=TUNGSTE N GAIN=1; BINAXIS1=1; BINAXIS2=2 GAIN=1; BINAXIS1=1; BINAXIS2=2; LAMP=TUNGSTE N GAIN=1; BINAXIS1=2; BINAXIS2=2 GAIN=1; BINAXIS1=2; BINAXIS2=2; LAMP=TUNGSTE N GAIN=4; SIZEAXIS1=100; SIZEAXIS2=100 GAIN=4; SIZEAXIS1=1024; SIZEAXIS2=32 10 Groups Exp. Time/[Actual Dur.] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 0.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 0.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 0.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 0.0 Secs X 3 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] 0.0 Secs X 3 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] Orbit [1] [1] [1] [1] [1] [1] [1] [1] [1] Proposal 11382 - Visit 02 - STIS SMOV4 CCD Functional Exposures (continued) # 15 16 17 Label Target Binned Bias BIAS es Binned Flats NONE Binned Flats NONE Config,Mode,Aperture STIS/CCD, ACCUM, DEF STIS/CCD, ACCUM, F25ND3 STIS/CCD, ACCUM, F25ND3 Spectral Els. DEF MIRROR MIRROR Opt. Params. GAIN=1; BINAXIS1=2; BINAXIS2=2 GAIN=1; LAMP=TUNGSTE N; BINAXIS1=1; BINAXIS2=2 GAIN=1; LAMP=TUNGSTE N; BINAXIS1=2; BINAXIS2=2 11 Special Reqs. Groups Exp. Time/[Actual Dur.] 0.0 Secs X 4 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] 10.0 Secs X 2 [==>(Copy 1)] [==>(Copy 2)] Orbit [1] [1] [1] Orbit Structure Proposal 11382 - Visit 02 - STIS SMOV4 CCD Functional 12 Exposures Visit Proposal 11382 - Visit 03 - STIS SMOV4 CCD Functional Proposal 11382, Visit 03, implementation Diagnostic Status: No Diagnostics Scientific Instruments: STIS/CCD Special Requirements: GYRO MODE 3GOBAD Comments: Acquire dark and bias frames outside the SAA. # Label Target Config,Mode,Aperture 1 Bias BIAS STIS/CCD, ACCUM, DEF Fri Jan 18 13:28:44 GMT 2008 Spectral Els. DEF Opt. Params. GAIN=1 2 Dark DARK STIS/CCD, ACCUM, DEF DEF GAIN=1 3 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 4 Dark DARK STIS/CCD, ACCUM, DEF DEF GAIN=1 5 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 6 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 7 Dark DARK STIS/CCD, ACCUM, DEF DEF GAIN=1 8 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 9 Dark DARK STIS/CCD, ACCUM, DEF DEF GAIN=1 10 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 11 Binned Bias BIAS es STIS/CCD, ACCUM, DEF DEF GAIN=1; BINAXIS1=2; BINAXIS2=2 13 Special Reqs. Groups Exp. Time/[Actual Dur.] 0.0 Secs [==>] 1200.0 Secs [==>] 0.0 Secs [==>] 1200.0 Secs [==>] 0.0 Secs [==>] 0.0 Secs [==>] 1200.0 Secs [==>] 0.0 Secs [==>] 1200.0 Secs [==>] 0.0 Secs [==>] 0.0 Secs X 4 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] Orbit [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] [1] Orbit Structure Proposal 11382 - Visit 03 - STIS SMOV4 CCD Functional 14 Exposures Visit Proposal 11382 - Visit 04 - STIS SMOV4 CCD Functional Proposal 11382, Visit 04, implementation Fri Jan 18 13:28:44 GMT 2008 Diagnostic Status: No Diagnostics Scientific Instruments: STIS/CCD Special Requirements: GYRO MODE 3GOBAD Comments: Acquire bias and spectral flat exposures for assessment of charge transfer efficiency via the edge response method. An off-nominal slit position providing uniform illumination to the top of the CCD columns would be preferred. # Label Target Config,Mode,Aperture Spectral Els. Opt. Params. Special Reqs. Groups Exp. Time/[Actual Dur.] Orbit 1 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 0.0 Secs [==>] [1] 2 Flat Field NONE STIS/CCD, ACCUM, 52X2 G750M GAIN=1; 0.1 Secs X 3 6768 A LAMP=TUNGSTE [==>(Copy 1)] N [==>(Copy 2)] [1] [==>(Copy 3)] 3 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 0.0 Secs [==>] [1] 4 Flat Field NONE STIS/CCD, ACCUM, 52X2 G750M GAIN=1; 0.1 Secs X 3 6768 A LAMP=TUNGSTE [==>(Copy 1)] N [==>(Copy 2)] [1] [==>(Copy 3)] 5 Bias BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 0.0 Secs [==>] [1] 6 Flat Field NONE STIS/CCD, ACCUM, 52X2 G750M GAIN=1; 10.0 Secs X 3 6768 A LAMP=TUNGSTE [==>(Copy 1)] N [==>(Copy 2)] [1] [==>(Copy 3)] 7 Biases BIAS STIS/CCD, ACCUM, DEF DEF GAIN=1 0.0 Secs [==>] [1] 8 Flats NONE STIS/CCD, ACCUM, F25ND3 MIRROR GAIN=1; 10.0 Secs X 2 LAMP=TUNGSTE [==>(Copy 1)] [1] N [==>(Copy 2)] 15 Proposal 11382 - Visit 04 - STIS SMOV4 CCD Functional Label Target Binned Bias BIAS es Config,Mode,Aperture STIS/CCD, ACCUM, DEF Spectral Els. DEF Opt. Params. GAIN=1; BINAXIS1=2; BINAXIS2=1 Exposures (continued) # 9 16 Special Reqs. Groups Exp. Time/[Actual Dur.] 0.0 Secs X 31 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] [==>(Copy 12)] [==>(Copy 13)] [==>(Copy 14)] [==>(Copy 15)] [==>(Copy 16)] [==>(Copy 17)] [==>(Copy 18)] [==>(Copy 19)] [==>(Copy 20)] [==>(Copy 21)] [==>(Copy 22)] [==>(Copy 23)] [==>(Copy 24)] [==>(Copy 25)] [==>(Copy 26)] [==>(Copy 27)] [==>(Copy 28)] [==>(Copy 29)] [==>(Copy 30)] [==>(Copy 31)] Orbit [1] Proposal 11382 - Visit 04 - STIS SMOV4 CCD Functional Label Target Binned Bias BIAS es Config,Mode,Aperture STIS/CCD, ACCUM, DEF Spectral Els. DEF Opt. Params. GAIN=1; BINAXIS1=1; BINAXIS2=2 Exposures (continued) # 10 17 Special Reqs. Groups NEW ALIGNMENT Exp. Time/[Actual Dur.] 0.0 Secs X 31 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] [==>(Copy 12)] [==>(Copy 13)] [==>(Copy 14)] [==>(Copy 15)] [==>(Copy 16)] [==>(Copy 17)] [==>(Copy 18)] [==>(Copy 19)] [==>(Copy 20)] [==>(Copy 21)] [==>(Copy 22)] [==>(Copy 23)] [==>(Copy 24)] [==>(Copy 25)] [==>(Copy 26)] [==>(Copy 27)] [==>(Copy 28)] [==>(Copy 29)] [==>(Copy 30)] [==>(Copy 31)] Orbit [1] Proposal 11382 - Visit 04 - STIS SMOV4 CCD Functional Label Target Binned Bias BIAS es Config,Mode,Aperture STIS/CCD, ACCUM, DEF Spectral Els. DEF Opt. Params. GAIN=1; BINAXIS1=2; BINAXIS2=2 Exposures (continued) # 11 18 Special Reqs. Groups NEW ALIGNMENT Exp. Time/[Actual Dur.] 0.0 Secs X 23 [==>(Copy 1)] [==>(Copy 2)] [==>(Copy 3)] [==>(Copy 4)] [==>(Copy 5)] [==>(Copy 6)] [==>(Copy 7)] [==>(Copy 8)] [==>(Copy 9)] [==>(Copy 10)] [==>(Copy 11)] [==>(Copy 12)] [==>(Copy 13)] [==>(Copy 14)] [==>(Copy 15)] [==>(Copy 16)] [==>(Copy 17)] [==>(Copy 18)] [==>(Copy 19)] [==>(Copy 20)] [==>(Copy 21)] [==>(Copy 22)] [==>(Copy 23)] Orbit [1] Orbit Structure Proposal 11382 - Visit 04 - STIS SMOV4 CCD Functional 19 Orbit Structure (continued) Proposal 11382 - Visit 04 - STIS SMOV4 CCD Functional 20