ASCA Sequence 84012010 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_N2
• Nominal Pointing (degrees)
  • R.A.=257.946 Dec.=64.118
  • Lii=94.021 Bii=35.023
• Observation Date: February 22, 1997
• Duration: 91.5 kiloseconds
• Approximate SIS Exposure: 36.5 kiloseconds (approximately 65% with telemetry saturated)
• Approximate GIS Exposure: 40.9 kiloseconds

Processing Information

• Sequence Version: 005
• Processing Version: 7.2.3 (Revision 2)
• FTOOLS Version: 4.0.c
• Processing Date: June 4, 1998
• GIS Secular Gain Calibration Date: March 15, 1998
• GIS Gain Map Calibration Date: September 30, 1997
• SIS CTI Calibration Date: October 3, 1997

US Principal Investigator

Japan Principal Investigator