The AIM spacecraft continues to operate nominally.
We’ve experienced uplink receiver bitlock sporadically
this week. The operations team completed testing the new flight
software patches which enable operations if the receiver bitlock
functionality completely fails. The results of last week’s
test of the On-Orbit Mission Planning software were analyzed
by OSC and the instrument teams. The system performed within
The SOFIE instrument
continues to perform perfectly since return to operational
science mode on March 14th. Data is excellent and all instrument
parameters are nominal. The only planned change is a slight
reduction in integration time for the center sums ROI (region
of interest) to bring those sun sensor measurements more into
the linear response range.
The first release of SOFIE data occurred on March 24th, with
data processing and validation in full swing. Level 1 data
is being processed with a 3 day delay from measurement. Level
2 data will appear about 10 days after on-orbit measurement
due to an initial conservative validation process that will
be shortened as we gain confidence in the processing algorithms
and data. The goal is to reduce the level 2 delay to 3 days
by the end of May. The 3 day delay is due primarily to National
Centers for Environmental Prediction (NCEP) data availability.
By late fall, refraction based temperature retrievals will
remove the need for the NCEP product, bringing the time from
measurement to available product to under 48 hours, with delays
as short as a few hours for special events.
Major improvements to the processing algorithms are underway.
Priority items include better corrections for signal drift,
NLTE physics in the forward CO2 transmission model and improved
correction for PMC extinction in the temperature and mixing
ratio retrievals. These improvements are targeted for use
in the operational processing system by early May.
to provide excellent science data from all four cameras. Further,
our analysis of on-orbit calibration data shows that camera
sensitivity has changed less than 0.5% since launch. CIPS
data sequencing automatically switched from the Southern to
Northern Hemisphere on the first day of spring, as planned.
on and collecting dust impact data following the completion
of the Recovery ATS. Temperatures and voltages are nominal.
CDE Version 2 data processing is being implemented for Levels
1 (Charge) and 2 (Mass).