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Terra Completes Lunar Deep Space Maneuver

Sep
29

On August 5, 2017, the Terra spacecraft completed a deep space pitch maneuver. During this maneuver, the moon was visible through the MODIS earth-view port. Details are included below. MODIS was in Day Collection rate during the maneuver, instead of nominal Night Collection. MODIS telemetry and gain parameters stabilized by 2017/218 14:20 (GMT). 

Start: 2017/217 23:15:45
Moon Center: 2017/217 23:29:54 
End:  2017/217 23:51:39

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Terra Data Outage - SFE Anomaly

Apr
24

Terra MODIS experienced a data corruption issue stemming from the Science Formatter Equipment (SFE) Assembly. Terra FOT cycled the formatter and MODIS science data acquisition resumed as expected. Data is unavailable for day 2017/114 (04/25/2017) from 03:44:03 - 19:44:58. Similar anomalies have occurred previously.
Link to post of previous incident: https://mcst.gsfc.nasa.gov/news/terra-science-formatter-equipment-sfe-an...

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Implementation of Electronic Crosstalk Correction to Terra PV LWIR Bands in Collection 6.1

Mar
29

In support of the upcoming Collection 6.1 reprocess, MCST applied a correction for the electronic crosstalk (Xtalk) contamination in the Terra MODIS photovoltaic (PV) long-wave infrared (LWIR) bands 27-30. Using scheduled lunar observations, the correction coefficients are derived and applied to the on-board calibrator (OBC) data and Earth-view (EV) data to correct the L1B calibrated radiance for bands 27-30. This results in a significant reduction in the image striping and radiometric biases in the L1B data. A more detailed summary of this implementation is attached below.

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End of Collection 5 Processing

Dec
21

MODIS Collection 5 data products will no longer be produced after the end of March 2017. Collection 6 data products were introduced in 2012 and are available for the entire mission record for both Terra and Aqua MODIS.
For information on Collection 6 improvements over Collection 5, see https://mcst.gsfc.nasa.gov/content/collection-6-information
For information on MODIS data products, see https://modis.gsfc.nasa.gov/data/

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MCST receives NASA Group Achivement Award

Sep
20

Congratulations to the members of the MODIS Characterization Support Team on receiving the 2015 NASA Group Achievement Award "for 20 years of expert and dedicated characterization of MODIS instruments on Terra and Aqua leading to unprecedented achievement in understanding Earth processes."

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