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STATUS:
08.01.10
Spacecraft Status
All subsystems on AIM continue to perform well. Our last period of bitlock was July 12. We completed the July Northern Hemisphere CIPS Flat Field observations on July 28-31.
Instrument Status
SOFIE continues to operate nominally. All status flags remain GREEN, and all engineering parameters are well within tolerance. Full Solar Scan calibrations were run for both events (SR and SS) within an orbit for one orbit each day on the 29th, 30th, and 31st of July. These will help to characterize the SOFIE FOV wings.
A presentation covering the SOFIE PMC and meteoric smoke results using the new band 2 UV observations was presented at the COSPAR meeting in Bremen. This talk included recent results which indicate that meteoric smoke is composed of olivine, based on SOFIE observations at 330, 867, and 1037 nm wavelengths.
Release 2 SOFIE data processing is validated and available through July 17, 2010. The reminder of July 2010 has been processed and awaiting validation. We are also processing the SOFIE data set with the Version 1.03 software version and validating the results. As soon as it has been validated we will be routinely processing and releasing this new data. This version contains some improved signal corrections and forward model and the Level 0b data has been corrected for the timing offsets and drift that occurs between GPS time and the local on board spacecraft clock.
CIPS continues to operate nominally, with widespread clouds observed on a daily basis. The figure here shows the clouds observed by CIPS from 29 July to 1 August. We obtained the fourth set of northern hemisphere 2010 season calibration observations at the end of July, so we are accumulating excellent calibration statistics. Operational data still use only the calibration data from the beginning of the season (March); all data will be reprocessed after the season with the full calibration data set.
Development of the next retrieval version, v4.20, is continuing. We are still on track to release this version in September. The primary remaining issue is to improve the cloud detection threshold, which depends on solar zenith angle and view angle. Work is also in progress to implement the calibration observations in autonomy; one of the next steps is to test the autonomous calibration RTS logic with the flatsat.
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