IRAC Instrument Handbook - IRSA - California Institute of Technology

Figure C.2: Data from Fig. C.1, with IRAC channels 3 and 4 corrected for the annulus
contribution, and IRAC channels 1 and 2 corrected for the pixel-phase effect.
C.3.3 The Serpens Test Field
Point Source Fitting IRAC Images
with a PRF
159
IRAC Instrument Handbook
Data for this test is a ''C2D'' off-cloud field (OC3) near Serpens, AORKEY 5714944 (S14.0). The
observation is HDR mode data (0.6 and 12 sec) from all four IRAC channels. The observation used two
repeats of two dithers, so the typical coverage is 4. The observation consisted of a 3x4 map. The field was
chosen to be a crowded, predominantly stellar, fie ld. The BCD data were run through artifact mitigation
to correct muxbleed, column pulldown/pullup, electronic banding and the first frame effect. No pixel
replacement was done. Long and short HDR data were handled separately. The tests here are with the
long frames.