Thursday, January 27, 2011

SDO EVE Cruciform

Today, Jan 27, SDO is performing maneuvers designed to help the EVE team more fully understand its instrument. These spacecraft maneuvers, called cruciforms as they point the spacecraft in a cross-like pattern at multiple steps, happen twice a year. You may notice the Sun stepping across the AIA or EVE/SAM images, or missing altogether today. Don't worry, just another planned calibration activity to help SDO achieve the best possible data!