HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

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Hitomi List of Software tasks

Listed below are all tasks created for the analysis of the Hitomi data. each task name is linked to the task help.

Hitomi Specific
General Description
ahgtigen Create and/or merge GTI files
ahmodhkext Merge extensions of FITS file into single extension
ahscreen Screen a science event file
Mission Description
aharfgen Make an ancillary response function (ARF) file for the SXS or SXI, or a response matrix (RSP) file for the HXI
ahbackscal Correct BACKSCAL keyword in a spectrum extracted with XSELECT
ahcalcl32ti Compute L32TI from S_TIME
ahcalctime Rerun the timing tools on an output directory from the pipeline
ahexpmap Generates an exposure map for HXI, SXI, and SXS, or a flat field image for SXI and SXS
ahfilter Generate an EHK file and a MKF filter file
ahgainfit Calculate the time-dependent energy gain corrections using known calibration lines
ahmkehk Extract and calculate parameters from orbit and attitude (EHK)
ahmkregion Creates regions files showing the field of view of all HITOMI instruments
ahmktim Calculates the relation of Time Invariant vs Time and the GTI for when the GPS is on
ahpipeline HXI/SGD/SXS/SXI reprocessing tool
ahsxtarfgen Creates an ancillary response file (ARF) for the SXS + SXT-S or SXI + SXT-I, accounting for the telescope effective area and detector efficiencies
ahtime Calculate times and populate the TIME column for all science and housekeeping data
ahtimeconv Convert mission time in different formats
ahtrendtemp Calculate the quartz clock frequency vs tempereature relation for the on-board clock
HXI and SGD Description
cams2att Computes a time-dependent delta-attitude file
cams2det Calculate offsets and rotations in HXI coordinates using CAMS telemetry input
camssim (1) Simulates motion of the Extensible Optical Bench (EOB) for testing CAMS-correction. (2) Generates RAW coordinates associated with given HXI ACT coordinates and the simulated motion
hxievtid Reconstructs HXI events
hxigainfit Calculate the HXI time-dependent energy gain corrections for events from comparison with known calibration lines
hxinxbgen Create a Non-X-ray Background (NXB) spectrum for HXI
hxipipeline HXI reprocessing tool
hxirspeffimg Creates a combined effective are and spectral response matrix ("RSP" file) and/or a flat-field corection image, for the HXI1 + HXT1 or HXI2 + HXT2 combinations, accounting for the telescope effective area, detector efficiencies, and CAMS motion
hxisgddtime Calculate and correct for deadtime HXI and SGD spectra and lightcurves
hxisgdexpand Expand HXI and SGD SFF occurrences to have one signal in each row
hxisgdmerge Merge slew and pointing raw (unprocessed) event files for the HXI or SGD
hxisgdpha Calibrates the HXI or SGD PHA for each signal in the SFF event file
hxisgdsff Converts an HXI or SGD First FITS File (FFF) into the Second FITS File (SFF)
hxisgdshield Extract lightcurves or spectra from shield data of HXI or SGD
sgdarfgen Calculate SGD transmission ratio for a source on the sky and create arf file
sgdevtid Reconstruct SGD events
sgdgainfit Calculate the SGD time-dependent energy gain corrections for events from comparison with known calibration lines
sgdpipeline SGD reprocessing tool
SXI Description
sxiflagpix Flag pixel STATUS for SXI event data
sxigainfit Calculate the SXI time-dependent energy gain corrections for events from comparison with known calibration lines
sximodegti Create GTI excluding dead time for each SXI observing
sxinxbgen Create a Non-X-ray Background (NXB) spectrum for SXI
sxiphas Merge inner 3x3 and outer 5x5 pulse height columns in SXI event list
sxipi Calculate pulse invariant (PI) values and assign grades for SXI events
sxipipeline Calculate pulse invariant (PI) values and assign grades for SXI events
sxirmf Create an SXI energy Redistribution Matrix File (RMF)
SXS Description
mxsgti Create MXS GTI files
mxstime Calculate the times of the MXS start and stop and generates coarse and fine GTI files
sxsanticolc Extract SXS antico light curve(s) and spectra using optional screening criteria
sxsanticopi Assign PHA and PI columns to the SXS anticoincidence events
sxsbranch Compute rates, branching ratios, and effective exposure times for each SXS event grade for an input real or simulated file, or based on a count rate
sxsextend Rerun tasks sxspha2pi, sxsperseus (if necessary), and ahscreen in order to produce SXS event files in extended energy mode
sxsflagpix Flag SXS events for antico and MXS event coincidence, temporal proximity, and crosstalk
sxsgain Calculate the time-dependent energy correction for SXS events from comparison with known calibration lines
sxsmkrmf Create an SXS RMF file and/or an RSP file for selected SXS pixels and grades
sxsnxbgen Create a Non-X-ray Background (NXB) spectrum for SXS
sxsperseus Remove differential gain error and fiducial gain error
sxspha2pi Calculate the PI for the SXS event files
sxspipeline SXS reprocessing tool
sxspixgti Create SXS GTI files
sxsregext Extract SXS data products from an event file using a region and selection of grades
sxsrmf Create an SXS RMF file for selcted SXS pixels and grades with weighting factors
sxssamcnt Calculate the local time in the SXS files necessary to assign time
sxsseccor Correct PHA for secondary events
sxssecid Associate SXS secondary events to the primary and allow to recalculate event grades
Non Hitomi Specific
Attitude Description
aberattitude Correct an attitude file for aberration effects
aberposition Correct coordinates for aberration effects
attconvert Converts attitude format
coordevt Convert events from one coordinate system to another
coordpnt Convert a single point or region file from one coordinate system to another
det2att2 Converts detector coordinate offsets and rotations to attitude quaternions
TIME Description
gticolconv Merge or split GTI based on specified 'column' and 'direction'
gtiinvert Create a gti file by inverting the time intervals of an input gti file
HEASIM Description
heasim Multi-mission high-energy astrophysics simulation tool
skyback Simulates the total, broadband, discrete and diffuse high-energy astrophysical background
HEAGEN Description
arftable Create an ancillary response function (ARF), or effective area file from the output events from the raytracing code xrtraytrace, not including any detector efficiencies
eeftable Create an encircled energy function (EEF) file based on the output history file from the raytracing tool xrtraytrace
xrtraytrace Perform raytracing simulations of X-ray telescopes, calculating photon paths, PSF, EEF, and effective area
xrtreftable Calculate the probability of reflection and transmission of a ray upon a surface, and mass absorption coefficients for mirror surface
barycen Apply barycenter corrections to X-ray timing data
HEASARC Description
searchflickpix Search for anomalous 'flickering' pixels in event files from CCD-type detectors