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Program Summary

The following is a list of the available programs.

addcb: Performs additions on a Ginga data cube, time series or spectrum.
att_insert: Inserts high-energy transmission efficiency information into Ginga data files but does not perform the attitude correction.
attcorr: Performs an attitude correction for Ginga data files.
bgdchk: Calculates the total variance and statistical noise in a Ginga data cube, time series or spectrum.
bgdfind: Returns a list of Ginga background data files found on the current directory.
bgdisas: Calculates the ISAS psuedo housekeeping (HK) parameters (to be used on MPC1 mode only). If absent, four new arrays are created: IMID, ICOR, IPERI and ISUD. If present, these arrays are overwritten by the program.
bgdisud: Inserts SUD rates, from a data file generated by the program bgdssud, into a Ginga data cube or time series.
bgdlocal.qcl: A qcl procedure to subtracts Ginga data files using a nearby (in time) off-source observation (assumes that there is only one off-source observation).
bgdlocal91.qcl: Similar to the qcl procedure bgdlocal.qcl except that the model of the radioactive decays follwing passage through the South Atlantic Anomaly includes only one coefficient. Suitable for observations taken after mid-1990.
bgdmfit: Performs a least-squares fit to a number of background observations with specified parameters. The output files are subsequently used by the program bgdsim. If the induced radiation caused by the SAA is to be included in the fit then bgdsaa, bgdsaa37 or bgdsaab must be run prior to bgdmfit.
bgdmid: Calculates a new HK parameter equivalent to the LAC mid-layer count rate in the 1-5 keV energy range. This parameter can be used to quantify radiation induced by the SAA.
bgdperr: Adds systematic errors to a Ginga data cube, time series or spectrum. The errors are specified in terms of a percentage of the count rate.
bgdsaa: Inserts psuedo HK parameters into an existing data file. These new parameters are called SAA_1, SAA_2, etc. and represent the radiation induced in Ginga by passage through the SAA. Each parameter is a time counter with a different decay rate.
bgdsaa37: Similar to bgdsaa except that 37 day cycle is included in the model.
bgdsaab: Similar to bgdsaa or bgdsaa37 except that 37-day cycle may be included in or excluded from the model.
bgdserr: Adds systematic errors to a Ginga data cube, time series or spectrum. The errors are 0.02 counts sec-1 per channel below 10 keV and 0.01 counts sec-1 per channel above 10 keV.
bgdsim: Generates background data for a particular Ginga data cube or time series. The program bgdmfit must be run prior to bgdsim.
bgdssud: Maps the SUD rate, from the input data files, against the the angle from ascending node and the longitude of the ascending node (dividing the data into 20° bins). The output data file is used with the program bgdssud, to correct SUD rates on occasions when the source contributes a significant number of counts above 24 keV.
bgduniv.qcl: A qcl procedure to subtract Ginga data cubes or time series using standardised files. It should be used when no local background is available, or for cases where the background subtraction is not important. In addition, it can be used when comparing "local" and "universal" background subtraction methods for weak sources, where uncertainties due to fluctuations in the Cosmic X-ray background are important (see Williams et al. 1992).
catget: Obtains a (time ordered) catalogue covering a user specified period.
catsort: Time orders a catalogue file.
cleanall: Removes poor quality data from a Ginga data cube or time series.
comment:
Adds a comment to the history of a file.
copyfrf: Copies all FRFs specified in an ASCII file produced by the program what_tape to the current directory.
corrac: Performs various types of correlation analysis (Spearman's, Pearson's and sum square difference of ranks') on Ginga housekeeping (HK) data. Algorithims are taken from Numerical Recipes' subroutines Spear and Pearsn.
divcb: Performs divisions on a Ginga data cube, time series or spectrum.
foldcb: Folds a section of a Ginga data cube or time series on a given period. The output file contains the folded light curve and can be used as input for the program ginga2xsp to produce phase resolved spectra.
foldcb_hjd: As foldcb but takes into account the time delay to the heliocentric frame of reference.
foldhk: Folds a Ginga HK parameter, within a data cube or time series, on a given period.
foldts: Folds a section of a Ginga time series on a period or range of periods; the period(s) may also change linearly with time. In the case of multiple folds the output file contains the chi-square (against a constant model) of the folded light curve at each period, as well as the actual folded light curve at the period having the maximum chi-square. In the other case, that of the single fold, the output file contains only the folded light curve (c.f. foldcb).
fold_multi: Folds up to 50 time series on a single period. The output file contains only the folded light curve. Fold_multi folds data after taking into account the time delay to the heliocentric frame of reference (generated using the program helio, although this is not necessary.
ginga2xsp: Converts Ginga data cubes into spectral files following the OGIP FITS conventions and these files can be used within the xspec spectral fitting package.
ginga_cube: Extracts light curves from a Ginga data file. Useful for examining HK data.
ginga_fold: Extracts the results from a folded Ginga data cube or time series.
ginga_lc: Converts Ginga time series into light curves following the OGIP FITS conventions and these files can be used within the xronos timing analysis package.
ginga_phad: Extracts a spectrum from a Ginga data file.
ginga_radec: Extracts several light curves (including LAC count rate, SUD, SOL2, RA, Dec and TRANSMISSION) from a Ginga data file.
ginga_sub: Extracts several light curves, in six energy bands, from a Ginga data cube.
ginga_time: Extracts light curves from a Ginga data cube.
group: Specifies the ranges and binning of pulse height data to be used in spectral fitting.
hds2asc: Converts a Ginga time series into an ASCII file.
helio: Calculates the time delay to the heliocentric frame of reference.
hyper: Rebins a selected range of elements of any Ginga cube, time series or spectrum along any one of its dimensions.
listh: Lists the contents of a standard Ginga file in an 80-column layout normally suitable for the terminal.
meanconst: Performs a straight or weighted mean of all spectral files (up to a maximum of 50) satisfying an input file specification. Meanconst allows the possibility of excluding data taken at low Galactic latitudes.
meanpha: Performs a straight or weighted mean of all spectral files (up to a maximum of 50) satisfying an input file specification.
nh: Determines the Galactic hydrogen density in a specified direction of the sky.
normcb: Performs normalisations on a Ginga data cube, time series or spectrum.
pl_fold.qcl: A qcl procedure to display a folded Ginga light curve.
pl_ginga.qcl: A qcl procedure to display Ginga housekeeping (HK) parameters against either another HK parameter, TIME or the LAC count rate.
pl_phad.qcl: A qcl procedure to display a Ginga spectrum.
pl_spec: Extracts the results of the spectral fitting program spf.
pl_spec.qcl: A qcl procedure to display the results of the spectral fitting program spf.
pl_time.qcl: A qcl procedure to display a Ginga light curve.
predgin90: Calculates the sun angles for any Ginga observation.
regression: Performs a weighted or unweighted linear regression between two Ginga HK parameters.
select: Extracts a Ginga cube, time series or spectrum from data cube. Any number of HK parameters can be selected upon inside or outside a specified window.
set_times.qcl: A qcl procedure to interactively set an array of times for use with sortac or zapts. The procedure requires an appropriate time series to display.
shrink: Reduces the size of HDS files.
sortac: Sorts Ginga FRFs and creates sorted data files which are compatible with the Leicester Data Analaysis System (LDAS).
spf: Performs multi-instrument spectral fitting.
subcb: Performs subtractions on a Ginga data cube, time series or spectrum.
what_tape: Reads a catalogue file, produces a summary containing the FRF names, start and stop time and the directory which the records came from.
what_time: Output the times (as MJD dates) in a Ginga data cube or time series containing valid data.
zapts: Removes previously selected bins from a Ginga data cube or time series by changing them to data gaps.

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