1.3 Planned Mission Phases

The scientific instruments on board ROSAT were activated two weeks after launch (1990 June 1). The following six weeks were devoted to the calibration and verification --performance, verification, and calibration (PVC) phase--    of all hardware components (see Sect. 1.3.1) and included operational tests of survey and pointed observations.   After the PVC phase, the all-sky survey was performed in a continuous six month period using the PSPC in the focal plane of the X-ray telescope. After the survey, the pointed-observation (guest observer) phase began,   starting with two six-month announcements of opportunity (AO), and yearly AOs thereafter.  (See also App. A which provides a table of important dates.)

 
• Performance, Verification, and Calibration Observations (PVC)
• All-Sky Survey
• Pointed Observations

© X-Ray Group at MPE (group)
last update:2001/09/27 22:35:25, editor of this page:Ortwin Schwentker