SDO
3rd April 2013, 15:40
Today we ran an HMI roll maneuver from 0550-1230 UTC (00:40-7:30 ET). The entire SDO spacecraft is spun around so that HMI can verify its operation and measure some calibration data.
More... (http://sdoisgo.blogspot.com/2013/04/hmi-roll-maneuver-april-3-2013.html)
More... (http://sdoisgo.blogspot.com/2013/04/hmi-roll-maneuver-april-3-2013.html)