Changelog

Important

If you have an older version, please upgrade:

pip install curvit --upgrade

1.7.2

The aperture radius is mentioned in the zoomed source images. Colour bars are added to the image plots. Matplotlib is allowed to use the default backend.

1.7.1

The input source coordinates are included in the curve() and curve_orbitwise() functions generated source_*png and source_zoomed_*png filenames.

1.7.0

A new parameter, ZEF_correction_factor, has been added to curve(), makecurves(), and curve_orbitwise() functions.

1.6.8

The default value of the min_matches parameter was changed to 4 from 1.

1.6.7

Replaced the Astroalign package with the Aafitrans package; this change only affects the combine_events_lists() function. combine_events_lists() function parameters NUM_NEAREST_NEIGHBORS and MIN_MATCHES_FRACTION have been removed. Three new parameters have been added to the combine_events_lists() function: num_nearest_neighbors, min_matches, and pixel_tolerance.

1.6.6

The events with having a FrameCount value of 1 are masked. This frame contains bad events.

1.6.5

Bug fix: Background subtraction was not taking place if saturation_correction was True.

1.6.4

A new parameter, time_separation, has been added to the curve_orbitwise() function.

1.6.3

The saturation correction technique has been made more accurate.

1.6.2

An internal function that estimates the weighted centroid of all events have been improved.

1.6.1

Bug fix: Corrected inaccurate MJD values for orbitwise data points in curve_orbitwise() function.

1.6.0

Added curve_orbitwise() function to create a light curve for a source, generating one data point per orbit. This function works best with the combined events list produced using combine_events_lists().

1.5.9

Replaced the previous fixed image centre value of (2400, 2400) with a function call that estimates the weighted centroid of all events.

1.5.8

combine_events_lists() function can now be used to combine already combined events lists from multiple observation IDs.

1.5.7

Bug fix for the combine_events_lists() function. In the previous versions, the threshold value was not getting reset after automatic threshold modification.

1.5.6

Parameters minimum_detections and maximum_detections have been added to the combine_events_lists() function. The function will automatically modify the threshold to meet the minimum and maximum number of detections criteria.

1.5.5

The combine_events_lists() function has been updated with new default parameters. The function will automatically modify the threshold to limit the maximum number of detections to below 200.

1.5.4

Parameters NUM_NEAREST_NEIGHBORS and MIN_MATCHES_FRACTION have been added to the combine_events_lists() function.

1.5.3

The FITS file writing bug in the image_astrometry() function was fixed. This bug was reported by Vikrant Jadhav.

1.5.2

The threshold parameter has been added to the combine_events_lists() function.

1.5.1

The makefits() function has been renamed to make_image().

1.5.0

Added image_astrometry() function to carry out astrometry on a UVIT image using Astrometry.net.

1.4.0

Added combine_events_lists() function to combine events lists from multiple orbits and create a single combined events list.

1.3.3

Curvit now reads and applies the “BAD FLAG” column from the official UVIT L2 pipeline (UL2P) generated events lists before processing the data. Note that the same “BAD FLAG” column generated by the process_ccdlab() function is only a placeholder.

1.3.2

Bug fix for the makefits() function.

1.3.1

Bugfix for background estimation. The scaling of the background counts to the source aperture was affected by a bug; this has been fixed.

1.2.5

The last release before the publication of Curvit software on JAA AstroSat special issue.