change in X: format has been completely redefined - software take note change in Y: bug fix or new keyword(s) added which may impact software change in Z: minor change, no impact on softwareEg:
n=1 | 2 | 3 | COMMENTS |
EVENTS | Conforms to format defined in "The Proposed Timing FITS File Format", Angelini, Pence and Tennant (1993), and "The Recommended Columns and Keywords for a FITS Event List", Pence and George (1995, Legacy 6, 36) | ||
ALL | Photon Event List, includes all photons detected without screening | ||
ACCEPTED | Only accepted photons included in table | REJECTED | Only rejected photons included in table |
LIGHTCURVE | conforms to format defined in "The Proposed Timing FITS File Format", Angelini, Pence and Tennant (1993). | ||
TOTAL | Source + background lightcurve | ||
RATE | values in each bin in table given in counts per time interval | ||
COUNT | values in each bin in table given in counts per bin | ||
BKG | Background lightcurve | ||
RATE | values in each bin in table given in counts per time interval | ||
COUNT | values in each bin in table given in counts per bin | ||
NET | Source lightcurve after background subtracted | ||
RATE | values in each bin in table given in counts per time interval | ||
COUNT | values in each bin in table given in counts per bin | ||
EXPOSURE | exposure times vs. time | ||
TEMPORALDATA | any table of non-science quantities vs. time Should conform to guidelines given by Angelini, Pence and Tennant (1993) where possible. | ||
HKP | housekeeping parameters | ||
COMPRESSED1 | in compressed format | ||
TSI | temporal status indicators | ||
COMPRESSED1 | in compressed format | ||
ASPECT | spacecraft aspect data | ||
EPHEM | spacecraft orbit information | ||
EVRATE | accepted, rejected particle event rates, master veto rates, etc. | ||
COMBINED2 | in compressed format | ||
GTI | "Good Time Intervals"; see Angelini, Pence, and Tennant (1994) | ||
STANDARD | acceptable science times screened by standard quality flags/limits; at minimum giving start and stop time for interval | ||
ALL | science time without regard to quality flags/limits; at minimum giving start and stop time for interval | ||
SPECTRUM | conforms to "The OGIP Spectral File Format", Arnaud, George and Tennant (1992) and George and Arnaud (1992) | ||
TOTAL | gross spectrum (source + bkg) | ||
RATE | values in each spectral bin in table given in counts per time interval | ||
COUNT | values in each spectral bin in table given in counts | ||
PHOTON | values in each spectral bin in table represent the Photon spectrum | ||
NET | spectrum of source after subtracting background | ||
RATE | values in each spectral bin in table given in counts per time interval | ||
COUNT | values in each spectral bin in table given in counts | ||
PHOTON | values in each spectral bin in table represent the Photon spectrum | ||
BKG | spectrum of background | ||
RATE | values in each spectral bin in table given in counts per time interval | ||
COUNT | values in each spectral bin in table given in counts | ||
PHOTON | values in each spectral bin in table represent the Photon spectrum | ||
DETECTOR | Detector extension for gross, source or bkg spectrum | ||
IMAGE | 2-D image array | ||
TOTAL | Gross image (no background subtracted) | ||
NET | image after subtracting background | ||
EXPOSURE | exposure map | ||
DETMAP | map of detector focal plan | ||
BKG | background image | ||
GENERIC | general image | ||
PRF | image of the point response function | ||
PREDICTED | theoretical model of the instrument PRF | ||
TOTAL | total image of instrument PRF, including background | ||
NET | NET image of instrument PRF, including background | ||
VIGNETTING | image of vignetting in the focal plane | ||
SRCLIST | list of derived source characteristics Conforms to "Rationalized Data Files: an Approach to a Multi- Mission Data Format for High Energy Astrophysics", Corcoran et al. 1993 | ||
RESPONSE | Conforms to "The OGIP RMF & ARF File Formats", George et al. 1992 and George and Arnaud (1998) | ||
EBOUNDS | specifies energy boundaries for response matrix. | ||
SPECRESP | extension contains spectral response vs. energy | ||
RSP_MATRIX | detector photon redistribution matrix | ||
REDIST | detector photon redistribution matrix without any other corrections | ||
FULL | detector photon redistribution matrix with all corrections (detector effective area, vignetting, etc.) included | ||
DETECTOR | detector photon redistribution matrix with all detector corrections but no corrections for any other optical elements (XRT, filters, gratings, etc.) | ||
ARRAY* | TOTAL | COUNT | a FITS table that contains one or more arrays of data binned in 2 dimensions The coordinate axes may be time, energy, wire position lag, frequency, phase or delta t. (ADDED 22-Feb-94, XTE, Rots) |
1NOTE: COMPRESSED form means that entries in the table only list the name of the parameter, the time of the parameter change, and the value of the parameter at that time. Otherwise, the table contains a TIME column and 1 column for each parameter of interest.
2NOTE: COMBINED form has been adopted to describe tables containing HK type data as well as science data, given in time order. Within the FITS file each row can contain scientific data (either intensity over an energy range or spectrum integrated over a delta time) and/or the HK type parameters given as an array within a column. Adopted within the SSS raw data FITS file
Last modified 2002-01-06