ASCAMASTER - ASCA Master Catalog
The ASCAMASTER table contains data on all ASCA observations that were
ever in any of the following states: 'Accepted', 'Scheduled Long-Term',
'Scheduled Short-Term', 'Processed', and 'Archived'. The final status of
an observation is given by the parameter Status. Specific dates that affect
the status of an observation are listed as the parameters scheduled_date,
observed_date, processed_date, archived_date, and cycle.
Notice that, if one or more of the date parameters are empty for a given
observation, this means that that those particular processes have not
occurred: e.g., if observed_date is empty, this means that the planned
observation was not observed.
The sequence number of the observation.
The last name of the Principal Investigator.
The first name of the Principal Investigator.
Principal Investigator number.
The ASCA proposal number corresponding to this target.
The AO number in which this target was accepted, or 0 for PV (performance
verification) phase target.
The subject category of this target as specified by the PI:
SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION
ACTIVE GALACTIC NUCLEI
CLUSTERS OF GALAXIES AND SUPERCLUSTERS
COSMIC XR-RAY BACKGROUND, DEEP SURVEYS, AND OTHERS
The name of the target.
The number of this target in the original proposal.
The Right Ascension of the target.
The Declination of the target.
Time awarded for observation in ksec.
Priority, where 1 means highest and 3 means lowest; targets accepted at
priority 3 are not guranteed to be observed.
The start time of an observation. If an observation has been scheduled but
not observed, this parameter contains the scheduled time for an observation.
Once an observation has been observed, this parameter contains the actual
The total elapsed time (end time minus start time) of completed observations,
including Earth blocks and SAA passages, in seconds.
Status of an observation indicated by : 'Accepted', 'Scheduled (long term)',
'Scheduled (short term)', 'Processed', 'Archived'.
The date on which the observation is scheduled to occur.
Once an observation has been 'observed', Observed_date contains the date on
which the observation was made.
The date that the data for this observation were processed by the ASCA Data
The date observation was first distributed, in seconds since 1980, to the
primary PIs. NOTE: The distribution dates may not be completely accurate since
they are sent to us from Japan.
The date that the data for this observation were made public. The following
are the rules that govern how long ASCA data is proprietary (i.e., available
only to the original proposal team) before it becomes public:
The following proprietary periods apply to the ASCA data:
* US and joint US/Japan data will be public 1 year + 2 weeks from their
dispatch to the PI.
* Japanese and joint Japan/US data (with a Japanese PI) will be public
18 months + 2 weeks from their dispatch to the PI.
* Calibration data enters the public domain as soon as they are processed.
The processing revision number. Numbers that :
start with '5' are rev1
start with '6' are rev1+
start with '7' will be rev2
BROWSE classification type.
The last name of Co-Principal Investigator.
The total GIS exposure time in seconds which standard processing has
flagged as good.
The total SIS exposure time in seconds which standard processing has
flagged as good.
The end time of the observation in seconds since 1980.
The Galactic Longitude of the target.
The Galactic Latitude of the target.
Questions regarding the ASCAMASTER database table can be addressed to the
HEASARC User Hotline.
If you have any problems, please consult the help
page or mail firstname.lastname@example.org