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Mission Operations News

MIGHTI v5 wind product now processing

It's a very exciting update!

Dr. Thomas Immel 0 995

Version 5 of the MIGHTI thermospheric winds is on its way. We are currently processing all the line of sight winds and once these are approved, will be promoted to the public FTP site and then the NASA archive. This wind product fills some long data gaps bad due to solar contamination. In version 5 the effects of this contamination has been mitigated and most of the data has been recovered. It also un-tethers the zero wind from HWM, using the on-orbit calibration processes to determine zero.

 

Tonga Volcanic Effects Data Online

Neutral winds and plasma velocities online, FUV ion density profiles now processing.

Dr. Thomas Immel 0 858

The January 2022 Tonga volcanic eruption produced some clear and remarkable effects in space that ICON saw directly. The new plasma drift data (Level 2.7 IVM v6)  and thermospheric wind and temperature data (Level 2.2, 2.3 MIGHTI v5) are on the ICON public FTP site for this event. The EUV instrument was not on, but FUV was, and we are currently completing the processing of FUV L1 data (which will be at v05 when they are published) to use in retrieval of both thermospheric composition and nighttime plasma density profiles for this event.

IVM reprocessed for 2020 - 2021

Includes every day with a conjugate maneuver

Dr. Thomas Immel 0 842

A number of IVM data are reprocessed on days between Feb 7, 2020 and Dec 22, 2021 where conjugate observation periods are present. The long list of these data is noted below. This correctly flags the IVM data mid-manuever to be good. It is recommended that if one is interested in data obtained during these short periods of time that you work with the latest revision of the data where the data quality flag is correct. Watch for timestamps reflecting the reprocessing date in February 2022 and an increase in the revision number over previously available data. Zip files containing these data will be published by Feb 14.

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ICON skin is based on Greytness by Adammer
Background image, courtesy of NASA, is a derivitave of photograph taken by D. Pettit from the ISS, used under Creative Commons license