ASCA Sequence 66009000 Header Page
This page gives a basic description of this sequence
and references to more detailed information.
The following information is also available:
Observation Information
- Object: NGC4457
- Nominal Pointing (degrees)
- R.A.=187.176 Dec.=3.524
- Lii=288.99 Bii=65.779
- Observation Date: June 14, 1998
- Duration: 85.7 kiloseconds
(with 4 kiloseconds of telemetry gaps)
- Approximate SIS Exposure:
42.7 kiloseconds
(approximately 24% with telemetry saturated)
- Approximate GIS Exposure:
45.9 kiloseconds
Processing Information
- Sequence Version: 002
- Processing Version: 7.3.8
(Revision 2)
- FTOOLS Version: 4.2.b
- Processing Date: December 12, 1999
- GIS Secular Gain Calibration Date: August 8, 1999
- GIS Gain Map Calibration Date: April 1, 1999
- SIS CTI Calibration Date: October 3, 1997
US Principal Investigator
NONE
Japan Principal Investigator
YUICHI TERASHIMA
ASTROPHYSICS
NAGOYA UNIVERSITY
CHIKUSA-KU
NAGOYA, AICHI 464-01
JAPAN
TERASIMA@U.PHYS.NAGOYA-U.AC.JP