14 Mar 2012

We are currently updating the fluxes and header information about flux conversion in all cryogenic IRAC channel 3 and 4 SHA data. We will remove this message once all the fluxes have been updated. Please investigate the headers of the downloaded IRAC channel 3 and 4 files to see what the processing version is (check the CREATOR keyword near the top of the header). If it is S18.25, then the new flux calibration has been applied. If it is S18.18, then the old flux calibration has been applied. Channel 1 and 2 flux values will remain the same, but the pipeline processing version will be updated to S18.25. Read more about the recalibration/flux conversion issue.