IRAC Instrument Handbook - IRSA - California Institute of Technology

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IRAC BCD File Header 169 IRAC Instrument Handbook USEDBPHF= T / T if Boresight Pointing History File was used BPHFNAME= 'SBPHF.0922233600.041.pntg' / Boresight Pointing History Filename FOVVERSN= 'BodyFrames_FTU_14a.xls' / FOV/BodyFrames file version used RECONFOV= 'IRAC_Center_of_5.8umArray' / Reconstructed Field of View ORIG_RA = 269.646270751953 / [deg] Original RA from raw BPHF (without pointi ORIG_DEC= 67.7895202636719 / [deg] Original Dec from raw BPHF (without point ORIGCD11= -0.0002148321219 / [deg/pix] Original CD1_1 element (without point ORIGCD12= -0.0002629551745 / [deg/pix] Original CD1_2 element (without point ORIGCD21= -0.0002645147033 / [deg/pix] Original CD2_1 element (without point ORIGCD22= 0.0002150865184 / [deg/pix] Original CD2_2 element (without point / DISTORTION KEYWORDS A_ORDER = 3 / polynomial order, axis 1, detector to sky A_0_2 = -4.3447E-06 / distortion coefficient A_0_3 = -1.016E-09 / distortion coefficient A_1_1 = 3.5897E-05 / distortion coefficient A_1_2 = -1.5883E-07 / distortion coefficient A_2_0 = -1.6032E-05 / distortion coefficient A_2_1 = -1.0378E-09 / distortion coefficient A_3_0 = -1.5738E-07 / distortion coefficient A_DMAX = 1.641 / [pixel] maximum correction B_ORDER = 3 / polynomial order, axis 2, detector to sky B_0_2 = 2.5424E-05 / distortion coefficient B_0_3 = -1.6169E-07 / distortion coefficient B_1_1 = -9.977E-06 / distortion coefficient B_1_2 = 7.6924E-09 / distortion coefficient B_2_0 = -7.8167E-06 / distortion coefficient B_2_1 = -1.6873E-07 / distortion coefficient B_3_0 = -1.1593E-08 / distortion coefficient B_DMAX = 1.184 / [pixel] maximum correction AP_ORDER= 3 / polynomial order, axis 1, sky to detector AP_0_1 = -2.3883E-07 / distortion coefficient AP_0_2 = 4.406E-06 / distortion coefficient AP_0_3 = 6.4348E-10 / distortion coefficient AP_1_0 = -1.5761E-05 / distortion coefficient AP_1_1 = -3.6428E-05 / distortion coefficient AP_1_2 = 1.64E-07 / distortion coefficient AP_2_0 = 1.6243E-05 / distortion coefficient AP_2_1 = -9.3393E-10 / distortion coefficient AP_3_0 = 1.5989E-07 / distortion coefficient BP_ORDER= 3 / polynomial order, axis 2, sky to detector BP_0_1 = -1.6807E-05 / distortion coefficient BP_0_2 = -2.5772E-05 / distortion coefficient BP_0_3 = 1.6546E-07 / distortion coefficient BP_1_0 = -8.8532E-07 / distortion coefficient BP_1_1 = 1.0173E-05 / distortion coefficient BP_1_2 = -8.7895E-09 / distortion coefficient BP_2_0 = 7.8383E-06 / distortion coefficient BP_2_1 = 1.7089E-07 / distortion coefficient BP_3_0 = 1.2114E-08 / distortion coefficient / PHOTOMETRY
IRAC BCD File Header 170 IRAC Instrument Handbook BUNIT = 'MJy/sr ' / Units of image data FLUXCONV= 0.6074 / Flux Conv. factor (MJy/sr per DN/sec) GAIN = 3.8 / e/DN conversion RONOISE = 9.1 / [Electrons] Readout Noise from Array ZODY_EST= 1.977768 / [MJy/sr] Zodiacal Background Estimate ISM_EST = 0.1727364 / [MJy/sr] Interstellar Medium Estimate CIB_EST = 0. / [MJy/sr] Cosmic Infrared Background Estimate SKYDRKZB= 1.934454 / [MJy/sr] Zodiacal Background Est of Subtracted SKYDKMED= -1.472912 / [MJy/sr] Median of Subtracted Skydark SKDKRKEY= 29840640 / Skydark AOR Reqkey SKDKTIME= 2. / [sec] Skydark AOR Duration Time SKDKFDLY= 11.97 / [sec] Average Frame Delay Time of Skydark SKDKIDLY= 11.97 / [sec] Average Immediate Delay Time of Skydark / IRAC MAPPING KEYWORDS READMODE= 'FULL ' / Readout mode (full or sub) / INSTRUMENT TELEMETRY DATA ASHTCON = 2 / Shutter condition (1:closed, 2: open) AWEASIDE= 0 / WEA side in use (0:B, 1:A) ACTXSTAT= 0 / Cmded transcal status ATXSTAT = 0 / transcal status ACFLSTAT= 0 / Cmded floodcal status AFLSTAT = 0 / floodcal status AVRSTUCC= -3.4 / [Volts] Cmded VRSTUC Bias AVRSTBEG= -3.3878126 / [Volts] VRSTUC Bias at start integration AVDETC = -4. / [Volts] Cmded VDET Bias AVDETBEG= -3.9877046 / [Volts] VDET Bias at start of integration AVGG1C = -3.45 / [Volts] Cmded VGG1 Bias AVGG1BEG= -3.4382206 / [Volts] VGG1 Bias at start of integration AVDDUCC = -3. / [Volts] Cmded VDDUC Bias AVDDUBEG= -2.9828275 / [Volts] VDDUC Bias at start integration AVGGCLC = 0. / [Volts] Cmnded VGGCL clock rail voltage AVGGCBEG= 0. / [Volts] VGGCL clock rail voltage AHTRIBEG= 150.05788 / [uAmps] Heater current at start of integ AHTRVBEG= 1.9357675 / [Volts] Heater Voltage at start integ. AFPAT2B = 6.0626999 / [Deg_K] FPA Temp sensor #2 at start integ. AFPAT2BT= 1114416.9 / [Sec] FPA Temp sensor #2 time tag AFPAT2E = 6.0626999 / [Deg_K] FPA temp sensor #2, end integ. AFPAT2ET= 1114416.9 / [Sec] FPA temp sensor #2 time tag ACTENDT = 20.925428 / [Deg_C] C&T board thermistor AFPECTE = 18.04231 / [Deg_C] FPE control board thermistor AFPEATE = 21.025127 / [Deg_C] FPE analog board thermistor ASHTEMPE= 22.11418 / [Deg_C] Shutter board thermistor ATCTEMPE= 23.272451 / [Deg_C] Temp. controller board thermistor ACETEMPE= 20.864466 / [Deg_C] Calib. electronics board thermistor APDTEMPE= 20.98639 / [Deg_C] PDU board thermistor ACATMP1E= 1.302006 / [Deg_K] CA Temp, Foot 2 ACATMP2E= 1.2846904 / [Deg_K] CA Temp, Foot 1 ACATMP3E= 1.3177339 / [Deg_K] CA Temp, Shutter ACATMP4E= 1.3142446 / [Deg_K] CA Temp, Top OMH ACATMP5E= 1.3122628 / [Deg_K] CA Temp, Bottom OMH
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IRAC Instrument Handbook Spitzer He
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v IRAC Instrument Handbook 8.1.4.5
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IRAC Instrument Handbook Astronomic
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2 Instrument Description 2.1 Overvi
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Pickoff Mirror IRAC Instrument Hand
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solving for F, we find ΣI P F = Σ
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IRAC Instrument Handbook Figure 2.5
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Instrument Description 12 Detectors
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f ex (throughput correction for bac
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3 Operating Modes IRAC Instrument H
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Figure 3.1 : IRAC dither patterns f
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Calibration 32 Flat Fields IRAC Ins
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Table 4.6: Color corrections for NG
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Page 179 and 180: DN Data Number. FET Field Effect Tr
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Page 187 and 188: Darron Harris, Mechanical Technicia
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Page 191 and 192: Charles Stone, Harness Technician I
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Page 195 and 196: List of Figures 190 IRAC Instrument
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