SDO Timeline Through February 2023

Here are the highlights of the SDO FDS Quarterly (Long Set) Predicts:

• 2022/206 @ 0716 UTC (07/25 @ 03:16 am ET) - July-August 2022 Eclipse Season Starts
• 2022/208 @ 2240 UTC (07/27 @ 6:40 pm ET) - Station Keeping Manuever #25
• 2022/231 @ 0709 UTC (08/19 @ 3:09 am ET) - Eclipse Season Ends
• 2022/310 @ 2:00 am ET (11/06) - Daylight Savings Time Ends - GSFC Local Time now UTC -5:00
• 2022/341 @ TBD (12/07 @ TBD) - Momemtum Management Maneuver #45 (Tentative Date)
• 2023/020 @ 0722 UTC (01/20/2023 @ 2:22 am ET) - January-February 2023 Eclipse Season Starts
• 2023/021 @ 0440 UTC (01/20/2023 @ 11:40 am ET) - Handover Season Starts with First Handover
• 2023/032 @ TBD (02/01/2023 @ TBD) - Station Keeping Maneuver #26 (Tentative Date)
• 2023/044 @ 0722 UTC (02/13/2023 @ 2:22 am ET) - Eclipse Season Ends

Station Keeping maneuver #25 is Today

SDO will execute Station Keeping maneuver #25 today from 2220-2300 UTC (6:20-7:00 pm ET). During a maneuver SDO science data may be missing or blurred. These maneuvers are needed to maintain SDO's assigned position as it passes through the geostationary orbit belt.

July 2022 Instrument Calibration Maneuvers

The July 2022 Instrument Calibration maneuvers are starting. During an instrument calibration maneuver SDO science data may be missing, blurry, or misaligned.

• 06 Jul 2022: EVE FOV and HMI/AIA Flatfield Calibrations (EVE FOV @ 1315 UTC (9:15-11:50 am ET); HMI/AIA Flatfield @ 1630-1910 UTC (12:30-3:10 pm ET))
• 20 Jul 2022: EVE Cruciform, 1400–1852 UTC (10:00 am - 2:52 pm ET)

The next HMI Roll maneuver has not yet been scheduled.

JSOC Power has been Restored

Power has been restored to Stanford University and all of the components of the JSOC have been turned on. Near-realtime data has been flowing for a day. The science data pipeline will beginning serving data as soon as possible.

Lunar Transit on June 29, 2022

Tomorrow, June 29, 2022, the Moon will transit the Sun between 0519 and 0554 UTC (01:19 and 1:54 am ET). At its peak the Moon will cover about 67% of the Sun. SDO science data will be unavailable during the transit.

Here's a movie of the transit from the SDO Flight Operations Team.

This transit occurs while SDO is in the midnight sector of its orbit. That means the motions of the Moon and SDO combine to make this a short transit, lasting about 35 minutes.

Enjoy!

Momentum Management Maneuver (Delta-H) #44 Yesterday

SDO executed Momentum Management Maneuver (Delta-H) #44 yesterday. Between 1945 UTC (3:30 pm ET) and 2015 UTC (4:15 pm) on 22-Jun-2022 SDO science data may be missing or blurred.

Power Still Out at Stanford

The power is still out at the Stanford University building that houses the AIA/HMI JSOC. AIA and HMI data will be unavailable until power is restored. This outage is apparently due to a wildfire near Palo Alo, CA, that brought down the main power lines into the area. The downlinked data is being stored at SDO's White Sands ground station. Once power is restored that data will be transmitted to the JSOC and made available for study.

EVE data is still available at the EVE SOC.