ASCA Sequence 84012000 Header Page

The following information is also available:

• Details of each event file
• A list of detected sources
• A list of all files
• The processing log index

Observation Information

• Object: ABELL2255
• Nominal Pointing (degrees)
  • R.A.=258.354 Dec.=64.051
  • Lii=93.905 Bii=34.858
• Observation Date: February 21, 1997
• Duration: 98.2 kiloseconds
• Approximate SIS Exposure: 45.6 kiloseconds (approximately 10% with telemetry saturated)
• Approximate GIS Exposure: 51.8 kiloseconds

Processing Information

• Sequence Version: 005
• Processing Version: 7.2.3 (Revision 2)
• FTOOLS Version: 4.0.c
• Processing Date: March 21, 1998
• GIS Secular Gain Calibration Date: November 15, 1997
• GIS Gain Map Calibration Date: March 31, 1997
• SIS CTI Calibration Date: October 3, 1997

US Principal Investigator

Japan Principal Investigator