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B/swift Swift Master Catalog (HEASARC, 2004-)
The following files can be converted to FITS (extension .fit or fit.gz)
swiftlog.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=B/swift
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drwxr-xr-x 58 cats archive 4096 Apr 19 07:45 [Up]
drwxr-xr-x 23 cats archive 4096 Apr 14 07:49 [TAR file]
-rw-r--r-- 1 cats archive 464 Dec 19 2022 .message
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-rw-r--r-- 1 cats archive 48243 Apr 14 07:49 swiftlog.csv
-rw-r--r-- 1 cats archive 6390 Feb 19 2018 swiftlog.dat [txt] [txt.gz] [fits] [fits.gz] [html]
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-rw-r--r-- 1 cats archive 144611628 Apr 14 07:49 swiftlog.dump
-rwxr-xr-x 1 cats archive 283 Jan 27 2020 update Beginning of ReadMe :B/swift Swift Master Catalog (HEASARC, 2004-)
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Swift Master Catalog
Nasa, HEASARC
<The High Energy Astrophysics Science Archive Research Center>
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Keywords:
ADC_Keywords: Observatory log ; X-ray sources ; Ultraviolet
Keywords: Ultraviolet, Xray
Mission_Name: Swift
Abstract:
This table records high-level information for each Swift observation and
provides access to the data archive. Each record is associated with a single
observation that contains data from all instruments on board Swift. The BAT is
the large field of view instrument and operates in the 10-300 keV energy band.
The narrow field instruments, XRT and UVOT, operate in the X-ray and UV/optical
regime, respectively.
An observation is defined as a collection of snapshots, where a snapshot is
defined as the time spent observing the same position continuously. Because of
observing constraints, the length of a snapshot can be shorter than a single
orbit and it can be interrupted because the satellite will point in a different
direction of the sky or because the time allocated to that observation ends.
The typical Swift observing strategy for a Gamma Ray Burst (GRB) and/or
afterglow, consists of a serious of observations aimed at following the GRB and
its afterglow evolution. This strategy is achieved with two different type of
observations named Automatic Targets and Pre-Planned Targets. The Automatic
Target is initiated on board soon after an event is triggered by the BAT.
The Figure of Merit (FOM) algorithm, part of the observatory's autonomy,
decides if it is worth requesting a slew maneuver to point the narrow field
instruments (NFI) on Swift, XRT and UVOT, in the direction of the trigger.
If the conditions to slew to the new position are satisfied, the Automatic
Target observation takes place; all the instruments have a pre-set standard
configuration of operating modes and filters and about 20000 seconds on source
will be collected. The Pre-Planned Target observations instead are initiated
from the ground once the trigger is known. These observations are planned on
ground and uploaded onto the spacecraft.
Acknowledging HEASARC:
https://heasarc.gsfc.nasa.gov/docs/heasarc/acknow.html