| ahelp |
ahelp |
Access the CIAO help documentation. |
|
| calibration |
ardlib |
Analysis Reference Data Library |
| caldb |
CALibration DataBase (CALDB) |
|
| chandra |
coords |
Coordinate systems used in Chandra analysis |
| eventdef |
Column definition in Chandra event files |
| level |
Describes the amount of processing performed to create a given product. |
| mtl |
A description of the Mission Time Line (MTL) |
| pileup |
An overview of pileup in the Chandra ACIS detector. |
| times |
"Times" used in Chandra datasets and Chandra data analysis |
|
| concept |
autoname |
Autonaming is a feature available in various tools for automatically naming an output file based upon the name of an input file. |
| ciao-install |
Download and install CIAO, CALDB, and the contributed script files |
| ciaorc |
(OBSOLETE) The .ciaorc file provides user-configuration options for CIAO |
| ciao |
Chandra Interactive Analysis of Observations |
| dmmath |
Syntax used for writing mathematical operations in dmtcalc, dmimgcalc, and dmgti |
| history |
A record of the tools that were run, along with the parameter settings, on a file. |
| merging_rules |
A description of the merging rules used when combining header information. |
| parameter |
Describes the parameter interface used by CIAO. |
| stack |
How to set a parameter to more than one value using a stack. |
| subspace |
Describes the filtering applied to a file |
|
| contrib |
add_colvals |
Add a column to a crate given a name and array of values |
| cda_data |
Download public data by ObsId from the Chandra archive (Python interface). |
| cda_search |
Find publicly-available Chandra ObsIds from the Chandra archive (Python interface). |
| check_caldb_version |
Check whether the locally-installed version of the Chandra Calibration DataBase (CALDB) is up to date |
| ciao_caldb |
Utility routines for the CIAO CALDB (CIAO contributed package). |
| ciao_contrib |
Useful Python routines for CIAO. |
| ciao_proptools |
Experimental interface to the Chandra proposal tools (CIAO contributed package). |
| ciao_runtool |
Run CIAO tools from Python as if they were functions (CIAO contributed package). |
| ciao_smooth |
Simple smoothing routines for 2D data |
| ciao_stacklib |
Support routines for using stacks in CIAO (CIAO contributed package). |
| ciao_utils |
Utility routines for CIAO (CIAO contributed package). |
| coords_chandra |
Utility routines for working with Chandra Coordinates |
| coords_format |
Convert between string and numeric formats for Astronomical positions. |
| coords_gratings |
Object to convert to/from Chandra grating coordinates. |
| coords_utils |
Utility routines for working with Astronomical positions. |
| crates_contrib |
Contributed CIAO routines for Crates. |
| crates_images |
Image-related routines for Crates (CIAO contributed package). |
| crates_utils |
Utility routines for Crates (CIAO contributed package). |
| FOVFiles |
Check which FOV files contains the specified RA,Dec location. |
| get_caldb |
Access various information about the Chandra Calibration DataBase (CALDB) |
| identify_name |
Find the position of an astronomical object using NED or CDS. |
| imextent |
Create a linear 2D transformation for the axes of an image |
| lc_clean |
lc_clean - remove periods of high (or low) count rates using the same technique as the ACIS background files |
| lc_sigma_clip |
lc_sigma_clip - remove flares from a light curve using an iterative sigma-clipping algorithm |
| lightcurves |
lightcurves - routines to remove periods of anomalously high (or low) count rates in a lightcurve |
| make_image_crate |
Create an IMAGECrate from an array. |
| make_table_crate |
Create a TABLECrate from a set of arrays, a dictionary, or a structured array. |
| read_ds9_contours |
Read in the contours from a ds9 *.con file with optional coordinate conversion. |
| scale_image_crate |
Scale the pixel values in an IMAGE crate. |
| simplecoordtransform |
Convert between the different coordinate systems of an image. |
| simple_hist |
Create a one-dimensional histogram of a data array |
| simple_stats |
Calculate several basic statistic values for a data array |
| smooth_image_crate |
Smooth the pixel values in an IMAGE crate. |
| write_arrays |
Write arrays to an ASCII file |
| write_columns |
Write out arrays (columns) to a file as a table (ASCII or FITS format). |
|
| crates |
add_col |
Add a column to a crate. |
| add_crate |
Add a crate to a dataset. |
| add_key |
Add a keyword to a crate given a CrateKey object. |
| add_piximg |
Add an image to a crate. |
| col_exists |
Determine if a column exists in a crate. |
| copy_colvals |
Copy the column values from a crate. |
| copy_piximgvals |
Copy the image values from a crate. |
| cratedataset |
The CrateDataset object is used to read and write files with multiple blocks. |
| cratedata |
The CrateData object is used to store column or image data. |
| cratekey |
The CrateKey object is used to represent a header item (keyword and value) for a file. |
| crates |
Reading, writing, and changing ASCII and FITS files in Python |
| crate |
The TABLECrate and IMAGECrate objects represent a block in a file. |
| create_vector_column |
Create a vector column. |
| create_virtual_column |
Create a virtual column. |
| delete_col |
Delete a column from a crate. |
| delete_key |
Delete a keyword from a crate. |
| delete_piximg |
Delete an image from a crate. |
| get_axis_transform |
Return the axis transform from an IMAGECrate. |
| get_colvals |
Get the column values from a crate. |
| get_col_names |
Return an array of the column names in a crate. |
| get_col |
Return a CrateData object of a column from a crate. |
| get_crate_item_type |
Return the type of the crate item as a string. |
| get_crate_type |
Return the type of the crate as a string. |
| get_crate |
Get a crate from a dataset. |
| get_keyval |
Return the value of a keyword in a crate. |
| get_key_names |
Return an array of the keywords in a crate. |
| get_key |
Return a CrateKey object of a keyword from a crate. |
| get_number_cols |
Return the number of columns in a crate. |
| get_number_rows |
Return the number of rows in a crate. |
| get_piximgvals |
Get the pixel values from an image crate. |
| get_piximg_shape |
Get the dimensions of the image stored in the IMAGECrate. |
| get_piximg |
Return a CrateData object of an image from a crate. |
| get_transform_matrix |
Extract the transform matrix from a crate. |
| get_transform |
Extract the coordinate transform from a crate. |
| is_pha |
Determine if the crate dataset contains a PHA file and its type. |
| is_rmf |
Determine if the crate dataset contains an RMF. |
| is_virtual |
Determine if the input column from the crate is a virtual column. |
| key_exists |
Determine if the keyword exists in the crate. |
| print_crate_names |
Display information on data from a crate. |
| read_dataset |
Read all contents of a file. |
| read_file |
Read FITS or ASCII data into a crate. |
| read_pha |
Load a PHA file into a PHACrateDataset. |
| read_rmf |
Load an RMF file into a RMFCrateDataset. |
| set_colvals |
Set the values of a column in a crate. |
| set_keyval |
Set the keyword value in a crate. |
| set_key |
Add a keyword to a crate given a name and a value. |
| set_piximgvals |
Set the pixel values in an image crate. |
| write_dataset |
Write a dataset to an output file. |
| write_file |
Write a crate to an output file. |
| write_pha |
Write a PHACrateDataset to a file. |
| write_rmf |
Write an RMFCrateDataset to a file. |
|
| dm |
dmascii |
Using the Data Model with text files |
| dmbinning |
The CIAO binning syntax |
| dmfiltering |
Filtering tables and images with the Data Model |
| dmmasks |
CIAO mask filtering syntax |
| dmopt |
Controlling Data Model internal options |
| dmregions |
CIAO region filtering syntax |
| dm |
CIAO Data Model: syntax for filtering and binning files |
|
| group |
group |
Provides the Python interface to the CXC grouping library |
| grpAdaptiveSnr |
Adaptively group an array by signal to noise. |
| grpAdaptive |
Group an array by the number of counts per group using an adaptive scheme. |
| grpBinFile |
Group an array using the grouping applied to another dataset. |
| grpBinWidth |
Group an array into a set of equal-width groups (by group width). |
| grpBin |
Group an array using low and high boundaries. |
| grpGetChansPerGroup |
Calculate the number of channels (elements) in each group. |
| grpGetGroupSum |
Apply the supplied grouping to an array. |
| grpGetGrpNum |
Calculate the group number for each element in the array. |
| grpMaxSlope |
Group an array so that its absolute gradient is above a user-defined limit. |
| grpMinSlope |
Group an array so that its absolute gradient is below a user-defined limit. |
| grpNumBins |
Group an array into a set of equal-width groups (by number of groups). |
| grpNumCounts |
Group an array by the number of counts per group. |
| grpSnr |
Group an array by signal to noise. |
|
| paramio |
paccess |
Returns the path to the specified parameter file. |
| paramclose |
Close a parameter file opened by paramopen. |
| paramio |
The Python interface to the CXC parameter system |
| paramopen |
Open a parameter file. |
| pgets |
Read/write individual parameter values. |
| pget |
Get a parameter value as a string. |
| plist |
Get list of parameter names. |
| pquery |
Query a parameter value. |
| pset |
Set a parameter value. |
| punlearn |
Restore the system defaults for a parameter file. |
|
| proposaltools |
colden |
COLDEN is an interactive program to evaluate the neutral hydrogen column density at a given direction on the sky |
| dates |
DATES is an interactive calendar and time conversion tool. |
| obsvis |
ObsVis is the Observation Visualizer created at the Chandra Science Center in Cambridge Massachusetts, USA. |
| pimms |
PIMMS (Portable, Interactive Multi-Mission Simulator) converts source fluxes and count rates between missions. |
| precess |
PRECESS is an interactive astronomical coordinate conversion program. It provides precession of equatorial coordinates and conversion between equatorial, ecliptic, galactic, and supergalactic coordinates. |
| prop-coords |
Defines available coordinate systems for Chandra Proposal Tools |
| prop-time |
Defines available calendars and timescales for command line versions of Chandra Proposal Tools |
| prop-tools |
Tools that aid in the preparation and submission of Chandra proposals |
|
| psf |
psf |
A Python module to calculate the size or enclosed-counts fraction of the Chandra PSF |
|
| region |
regArea |
*DEPRECATED* Calculate the area enclosed by a region. |
| regExtent |
*DEPRECTATED* Calculate the bounding box of a region. |
| regInsideRegion |
*DEPRECATED* Is a point (or set of points) inside a region? |
| region-old |
*DEPRECATED* Provides the Python interface to the CXC region library |
| region |
Provides a Python interface to the CXC region library |
| regParse |
*DEPRECATED* Parse a region for use by the routines in the region library |
| regPrintRegion |
*DEPRECATED* Print out diagnostic details about a region. |
| regRegionString |
*DEPRECATED* Converts a region object into a string. |
|
| scripting |
python |
Python is a dynamic object-oriented programming language used by CIAO |
|
| tools::acis |
acisreadcorr |
Flag and relocate out-of-time CCD events |
| acis_build_badpix |
Create an observation-specific bad-pixel file |
| acis_check_pha_range |
Compute approximate energy range for on-orbit PHA filter. |
| acis_clear_status_bits |
Clear (set to 0) ACIS status bits before reprocessing with acis_process_events |
| acis_detect_afterglow |
Identify and flag cosmic ray afterglows |
| acis_find_afterglow |
Identify cosmic-ray afterglows and hot pixels for TIMED mode observations |
| acis_process_events |
Produce or update the time, coordinate, pulse-height, grade, and status information in ACIS event files |
| acis_streak_map |
Generate high frequency background maps (streakmaps) which identify ACIS streaks caused when bright source photons are applied to the wrong pixel during readout. |
| destreak |
Remove streak events from ACIS data |
| multi_chip_gti |
Create a combined GTI file for multiple ACIS chips |
|
| tools::aspect |
asphist |
Bin the aspect solution into a 3D histogram of duration vs pointing offset and roll offset. |
| asp_offaxis_corr |
Applies off-axis boresight correction to an L1 Aspect solution file (ASPSOL). |
| correct_periscope_drift |
Correct a Chandra aspect solution for temporal drift calculated from a fit of the drift in the sky positions of the events in a supplied circle region. |
| dither_region |
Compute fraction of region area that covers chips |
| get_dither_parameters |
Determine the approximate dither period and amplitude used during an observation. |
| monitor_photom |
Generate a photometric lightcurve from ACA monitor data. |
|
| tools::background |
acis_bkgrnd_lookup |
Find the matching ACIS "blank-sky" dataset for an observation |
| blanksky_image |
Create scaled background and background-subtracted images given an observation-specific blanksky background file and a reference image. |
| blanksky_sample |
Create a scaled background events file by using the scale factor calculated by and sampling the blanksky background file generated by the "blanksky" script for an observation. |
| blanksky |
Tailor an unscaled blanksky background file to be compatible with a given events file; combining and reprojecting the necessary background files from the CalDB. |
| create_bkg_map |
Create a background map for ACIS and HRC from the event files. |
| hrc_bkgrnd_lookup |
Find the matching HRC "blank-sky" dataset (event file or spectrum) for an observation |
| readout_bkg |
Approximate the Out Of Time source contribution to the background. |
|
| tools::caldb |
calindex |
Create an index file or append data on an existing one of calibration database (CALDB) products. |
| calmerge |
Merge index files of calibration database (CALDB) products. |
| calquiz |
Find calibration files in the CALDB |
| calvalid |
Validate index file of calibration database (CALDB) products. |
|
| tools::composite |
chandra_repro |
Reprocess a Chandra dataset |
| combine_grating_spectra |
Combine Chandra gratings PHA files and their associated response files. |
| combine_spectra |
Combine PHA files and their associated response files. |
| dax |
Run CIAO tasks from the ds9 Analysis menu |
| fluximage |
Create exposure-corrected images and exposure maps for an observation. |
| flux_obs |
Combine reprojected observations to create an exposure-corrected image. |
| merge_obs |
Reproject and combine multiple observations to create a merged event file and exposure-corrected images. |
| reproject_obs |
Reproject a set of observations to a common tangent point and create a merged event file. |
| specextract |
Create source and optional background spectra for Chandra imaging-mode and zeroth-order grating data. |
| srcextent |
Determine if a source is extended within a confidence interval. |
| srcflux |
Calculate the net count rates and fluxes, including uncertainties, of sources in a Chandra observation. |
|
| tools::coordinates |
dmcoords |
Convert between Chandra coordinate systems |
| reproject_aspect |
Modify aspect solution file RA, Dec, and roll or updfile WCS to minimize position differences between two source lists. |
| reproject_events |
Regrid an event file to a different tangent point |
| reproject_image_grid |
Projects image(s) from one WCS to another |
| reproject_image |
Projects image from one WCS to another |
| sky2tdet |
Project an image in SKY coordinates to TDET coordinates |
| sso_freeze |
Reproject sky x and y coordinates into a Solar System Object centered reference frame. |
| wcs_match |
Create a frame transformation to minimize the aspect difference between data from the same sky region. |
| wcs_update |
Modify aspect solution file RA and Dec or infile WCS based on a transformation matrix. |
|
| tools::core |
dmappend |
Append multiple blocks/extensions to an existing output file. |
| dmcopy |
Filter and bin tables and images. |
| dmdiff |
Compare values in two files. |
| dmextract |
Make a histogram table file (e.g. PHA file, lightcurve file) from a table column. Generate count histogram on supplied regions for a spatial table or image file. |
| dmlist |
List contents or structure of a file. |
|
| tools::detect |
celldetect |
Use a "sliding cell" to search for sources |
| get_src_region |
Outputs regions that have counts higher than background |
| vtpdetect |
Voronoi Tessellation and Percolation (VTP) source detection |
| wavdetect |
Mexican-Hat Wavelet source detection (wtransform+wrecon) |
| wrecon |
Combine wavelet transform coefficients into sources |
| wtransform |
Obtain wavelet transform coefficients for poisson image data |
|
| tools::download |
download_chandra_obsid |
Download public data by ObsId from the Chandra archive. |
| download_obsid_caldb |
Download the CALDB files required to analyze an OBS_ID |
| find_chandra_obsid |
Find, and optionally download, publicly-available Chandra ObsIds from the Chandra archive. |
| install_marx |
Automatically download and install MARX |
| obsid_search_csc |
Search the Chandra Source Catalog by OBS_ID |
| search_csc |
Perform a position search on the Chandra Source Catalog |
|
| tools::gratings |
detilt |
Correct the time-dependent tilt of LETG/HRC-S spectra by adjusting TG_D. |
| dewiggle |
Straighten LETG/HRC-S spectra by applying tg_d adjustments. |
| symmetrize |
Adjust the tg_d values of LETG/HRC-S evt2 data to make cross-dispersion profiles more symmetric |
| tgdetect2 |
Bundles three programs: tg_findzo, tg_choose_method, and tgdetect into one in order to provide a more convenient interface for determination of the zeroth order centroid. |
| tgdetect |
Detect and centroid the zero order image in a spatial sub-region of a grating event list. |
| tgextract2 |
Bin event list grating wavelengths column into a one-dimensional counts histogram, by source, grating part, and diffraction order. Optionally bin background spectrum. |
| tgextract |
Bin event list grating wavelengths column into a one-dimensional counts histogram, by source, grating part, and diffraction order. |
| tgidselectsrc |
Filter an input source list based upon a SNR threshold. |
| tgmask2reg |
Customize grating extaction region file for use with tgextract2 |
| tgmatchsrc |
Match sources between two source lists by their 2-D separation files. |
| tgsplit |
Split a TYPE:II grating PHA file into several TYPE:I files |
| tg_bkg |
Creates a PHA background file for use in XSPEC |
| tg_choose_method |
Automatically choose between tgdetect and tg_findzo for determining the zeroth order centroid |
| tg_create_mask |
Create a region file to define spectrum sky boundaries |
| tg_findzo |
Find the zeroth order sky X,Y centroid for bright sources observed using HETG or LETG gratings with the ACIS-S detector. |
| tg_resolve_events |
Assign grating events to spectral orders; use detector energy resolution for order separation, if available. |
|
| dmhedit |
Edit datamodel file headers |
| dmhistory |
Extracts the tool history from the file header |
| dmkeypar |
Retrieve information about a keyword from an input file |
| dmmakepar |
Write header keywords to a parameter file |
| dmreadpar |
Create header keywords from a parameter file |
|
| tools::hrc |
hrc_build_badpix |
Create observation-specific bad pixel file for HRC |
| hrc_dtfstats |
Calculate statistics from hrc_calc_dead_time and a GTI |
| hrc_process_events |
Correct HRC event positions, times, PHA, etc. |
|
| tools::image |
aconvolve |
Convolve an N-dimensional image with a kernel |
| acrosscorr |
Cross-correlate two N-dimensional images or autocorrelate an image |
| apowerspectrum |
Compute the power spectrum of an N-dimensional input array, or from two columns (independent/dependent variable) in an input file |
| arestore |
Restore image resolution using deconvolution techniques |
| centroid_map |
Adaptively bin an image using centroid map algorithm |
| csmooth |
Adaptively smooth a 2-D image |
| dmfilth |
Replace pixel values in source regions of an image with values interpolated from surrounding background regions |
| dmimg2jpg |
Make a color JPEG image (or EPS) from three image files |
| dmimgadapt |
Adaptively smoothes an image based on number of counts |
| dmimgblob |
Identifies groups of pixels above/below threshold |
| dmimgcalc |
Perform arithmetic on images |
| dmimgdist |
Computes the distance transform of image |
| dmimgfilt |
Performs various non-linear image filtering techniques. |
| dmimghist |
Create a histogram of the pixel values in a 2-D image |
| dmimgpick |
Maps image values to rows in a table |
| dmimgpm |
Compute a low frequency spatial (modified poisson mean) background map |
| dmimgproject |
Project image along axis |
| dmimgreproject |
Replicates table value along axis of image |
| dmimgthresh |
Set low (or high) intensity or exposure regions of an image to a constant value. |
| dmmaskbin |
Bins an image based on input mask |
| dmmaskfill |
Replaces mask values with those found in lookup table |
| dmnautilus |
Perform a quad-tree adaptive binning on 2D images |
| dmradar |
Perform polar quad-tree adaptive binning on 2D images |
| dmregrid2 |
shift, rotate, scale images |
| dmregrid |
Rebin a stack of 2-dimensional images. |
| energy_hue_map |
Creates a true color image using median-energy map and counts image. |
| evalpos |
Get image values at a specified (RA,DEC) |
| hexgrid |
Create a regular hexagonal grid and apply to input image |
| map2reg |
Convert a map file into a region file. |
| merge_too_small |
Adjust input map file to meet some minimum criteria |
| mkregmap |
Create map from stack of input regions. |
| pathfinder |
Group pixels by steepest gradient ascent to local maximum |
| vtbin |
Create adaptive bin image using Voronoi Tessellation |
|
| tools::parameter |
paccess |
Gives the location of a tool's parameter file |
| pdump |
Dumps the values of the parameters, with one parameter per line. |
| pget |
Get parameter values |
| pline |
Display the parameter values, with all parameters on a single line |
| plist |
List the contents of a parameter file. |
| pquery |
Query whether a parameter exists and, if so, get and return its value. |
| pset |
Set parameter values on the command line |
| punlearn |
Restore system default parameter values |
|
| tools::region |
bkg_fixed_counts |
Create a background region with a fixed number of counts |
| convert_ds9_region_to_ciao_stack |
Convert ds9 region file containing special shapes to CIAO stack. |
| dmcontour |
Make contour regions from a 2-D image |
| dmellipse |
Finds ellipse for specified fraction |
| dmgroupreg |
Translates DS9 regions and groups to CIAO format. |
| dmimghull |
Create convex polygon around pixels in an image |
| dmimglasso |
Draw region around point with similar values |
| dmmakereg |
Convert the format of a region file (swap between ASCII and CXC FITS) |
| psfsize_srcs |
Compute the size of a circle enclosing a specified fraction of PSF. |
| psf_contour |
Create a source region file from a simulated PSF |
| rank_roi |
Assign overlapping region area to highest ranking source. |
| regphystocel |
Convert regions in physical coordinates to ds9 format regions in celestial (fk5) coordinates. |
| roi |
Generates source and background regions from source list |
| skyfov |
Make a field-of-view region in sky coordinates |
| splitroi |
Convert the output of roi into a format usable by dmfilth |
|
| tools::response |
acis_fef_lookup |
Find the FITS Embedded Function file for use by mkrmf |
| acis_set_ardlib |
Sets the bad pixel parameters of the ardlib file to the given file |
| addresp |
Add multiple RMFs, weighted by ARFs and exposures; add mutiple ARFs, weighted by exposures. |
| arfcorr |
Calculate a point source aperture correction, either as a single-energy image or as an energy-dependent correction to the ARF file. |
| color_color |
Creates a Color-Color diagram |
| dmarfadd |
Add multiple grating ARF files together, weighting by exposure. |
| ecf_calc |
Obtain the encircled counts fraction of an object as a function of radius. |
| eff2evt |
Compute the flux and look up the QE & effective area for event positions |
| find_mono_energy |
Compute monochromatic for energy band given input spectrum and responses. |
| fullgarf |
Create a grating ARF for a particular order and grating for a given observation. |
| make_instmap_weights |
make_instmap_weights - produces a weighted spectrum file usable with mkinstmap in order to create a weighted exposure map. |
| make_psf_asymmetry_region |
Create a region that shows the location of the HRMA PSF asymmetry for a source |
| mean_energy_map |
Creates an image whose pixels are the mean energy of the events |
| mkacisrmf |
Generate an RMF for Chandra imaging data |
| mkarf |
Generate an ARF for Chandra imaging data (and grating 0th order) |
| mkexpmap |
Generate a Chandra imaging exposure map (effective area vs. sky position) |
| mkgarf |
Generate a Chandra Grating ARF for one detector element. |
| mkgrmf |
Generate an RMF for Chandra grating data |
| mkinstmap |
Generate a Chandra instrument map (effective area vs. detector position) |
| mkpsfmap |
Look up the radius of the PSF for each pixel in an image |
| mkrmf |
Generate an RMF for Chandra imaging data |
| mktgresp |
Create ARF and RMF files for each spectral order and grating arm in a TypeII PHA file |
| mkwarf |
Generate a weighted ARF. |
| modelflux |
Calculate model flux or count rate |
| pileup_map |
Compute image that gives indication of pileup. |
| psf_project_ray |
Project rays generated by ChaRT onto a semi-infinite detector plane. |
| rmfimg |
Create a simple image of an RMF or ARF file |
| simulate_psf |
Simulate the Chandra PSF |
| src_psffrac |
Compute approximate PSF fraction in circular source region |
|
| tools::stacks |
stk_build |
stk_build is used to build a stack from a user-defined string. The output is to stdout, stderr, or a file. |
| stk_count |
stk_count is used to count the number of items in a stack. The output is to the stk_count parameter file. |
| stk_read_num |
stk_read_num is used to read one element of a user-defined stack. The output is to the outelement field of the stk_read_num parameter file. |
| stk_where |
stk_where finds the location of an item in a stack |
|
| tools::statistics |
aplimits |
Compute upper limits for the detection of a source, using data obtained from background apertures in event lists, images, and exposure maps. |
| aprates |
Compute net counts, rate, and/or flux, plus credible intervals, for a point source, using data obtained from source and background apertures in event lists, images, and exposure maps. |
| dmstat |
Compute statistics for images and columns in tables. |
| imgmoment |
Computes image moments (sum, mean, size, angle, etc). |
| lim_sens |
Create an output limiting sensitivity map with the same blocking factor, dimensions and WCS |
| statmap |
Compute simple statistics for events in each map region. |
|
| tools::table |
dmgroup |
Group a specified column in a table with various options |
| dmjoin |
Join two files whose sampling is different. |
| dmmerge |
Merge two or more compatible tables (e.g. event files) into one. |
| dmpaste |
Add new columns to a table. |
| dmsort |
Sort a table. |
| dmtabfilt |
Apply non-linear filters to columns in table |
| dmtcalc |
Modify and create columns in a table |
| dmtype2split |
Split up an array column into multiple files (e.g. PHA type 2 to PHA type 1). |
|
| tools::timing |
axbary |
Apply barycentric corrections to event times, GTIs, and header values. |
| deflare |
deflare - remove flares from light curves using lc_clean or lc_sigma_clip |
| dmgti |
Create a Good Time Interval from limits placed on time-based files (event and Mission Time Line files). |
| glvary |
Search for variability using Gregory-Loredo algorithm. |
| gti_align |
Align GTI to ACIS exposure times |
| mtl_build_gti |
Create Good Time Interval from Mission Time Line and limits |
| pfold |
Folds events into multiple periods |
|
| tools::utilities |
apply_fov_limits |
Create an image that matches the FOV file for the observation |
| check_ciao_caldb |
A tool to test the installation of the CIAO Calibration Database (CALDB) |
| check_ciao_version |
Check that the CIAO and CALDB installations are up to date. |
| convert_xspec_script |
Convert a XSPEC save file to Sherpa commands *experimental* |
| convert_xspec_user_model |
Compile a XSPEC user model for use in Sherpa *experimental* |
| get_fov_limits |
Find the region (bounding box) covered by a FOV file in sky coordinates |
| get_sky_limits |
Find the region covered by an image in sky coordinates |
| r4_header_update |
Update file header with various keywords to match latest archive processing |
| splitobs |
`splitobs' separates the data products for Multi-Obi and ACIS interleaved observations |
| summarize_status_bits |
Summarize the status bits in a Chandra event file. |
|
| transform |
apply_transform |
Apply a transform to the given data. |
| copy_transform |
Copy the transform. |
| get_transform_type |
Return the flavor of the input Transform object. |
| transform |
TRANSFORMS - Coordinate transforms in Python |