v3.0.5

LSL 3.0.5. Changes Include:

• Fixed DRX8 CI8 support
• Re-enabled DRX8 file detection for lsl.reader.ldp.LWANADataFile
• Updated drxSpectra.py to work with DRX8 files as well

v3.0.4

LSL 3.0.4. Changes Include:

• Added support for OVRO-LWA in IDFs
• Reduced the number of "Cannot download file ..." warning when importing lsl
• Cleaned up uniform and Briggs weighting in the lsl.imaging.utils.ImgWPlus class
• Added missing DRX8 methods to lsl.reader.buffer and lsl.reader.ldp
• Updated lsl.correlator._core.XEngine[23] to work with CI8 data
• Moved drxSpectra, tbfSpectra, and correlateTBF over to use CI8 loading by default
• Improved performance of the TBF reader
• Updated the README and installation notes to say that you need a C++ compiler with C++11 support

v3.0.3

LSL 3.0.3. Changes Include:

• Fixed a problem with applying station dynamic metadata to a LWAStation object
• Make the GloTEC model downloads more granular to help with data transfer sizes
• Compress the GloTEC model after download to reduce disk usage
• Fixed a problem separating TBF from DRX data in the era of multiple TBF flavors
• Fixed a problem identifying COR data in the era of multiple COR flavors

v3.0.2

LSL 3.0.2. Changes Include:

• Enabled caching in lsl.sim.beam to reduce the number of times a model is loaded
• Updated lsl.common.data_access to request file be gzip compressed when downloaded
• Refactored lsl.common.data_access to expose the internal downloader function
• Added better warnings/error messages to lsl.misc.file_cache and lsl.misc.file_lock to help debug stuck locks
• Updated lsl.common.idf to default to using all (full + mini) stations
• Fixed the units on the final report of a DownloadBar run
• Worked on improving the performance of "return_ci8=True" in lsl.reader.ldp

v3.0.1

LSL 3.0.1. Changes Include:

• Fixed a problem with lsl.sim.beam.beam_response/mueller_matrix when scalar azimuth/altitude are provided
• Fixed a problem with lsl.sim.beam.beam_response/mueller_matrix returning NaNa for 'empirical' and 'llfss'
• Updated FrameTimestamp.float to strictly return a float
• Fixed a timestamp problem in lsl.reader.vdif related to tracking leap seconds since the reference epoch

v3.0.0

LSL 3.0.0. Changes include:

• Switch to the GNU scientific library for internal Bessel functions
• Fixed an undefined variable error in lsl.statistics.robust.polyfit
• Fixed a division error in lsl.misc.mathutils.sphfit when real_only=True
• Switched to a "download on demand and cache" method of distributing data for LSL
• Added a lsl.common.stations.ARX.revision() method to find the revision name for an ARX board
• Added a new lsl.sim.beam module to find the dipole antenna response
• Updated the telemetry client to also send the Python version (major.minor)
• Dropped support for Python 2.7 and <3.8
• Switched over to astropy for most internal astronomical calculations
• Added astropy compatibility hooks for many LSL classes
• Moved from multiprocessing to concurrent.futures for multi-processing support
• Switched to multi-phase initialization for C++ extensions
• Merged ARX response files into single file per board to reduce number of data files
• Moved lsl.common.mcs value lookup functions over to enum.Enum classes
• Updated the lsl.writer.fitsidi to write antenna coordinates in the ECEF frame
• Changed 'elevation' to 'azimuth' in cases where it reference the angle above the horizon
• Updated the ImgWPlus class to have a 'wcs' attribute to help with mapping image to world coordinates
• Moved lsl.imaging.utils and lsl.imaging.overlays to using ImgWPlus instances for image to world coordinate mapping
• Added the Fermi 3FGL, 4FGL, and 4FGL-DR4 catalogs
• Updated many functions to be flexible with angle inputs so that accept float, astropy Angle or ephem Angle instances
• Fixed how lsl.reader.vdif and lsl.writer.vdif deal with non-zero reference epochs
• Added support for LWA-NA and other NDP-based stations
• Changed lsl.common.metabundle into a general module that can work with metadata from any station
• Added a DRX8 reader for future data format support
• Updated gatherDebugging.py to make it more useful
• Dropped the 'indicies' keyword from lsl.correlator.uvutils
• Added support for the (experimental) GloTEC ionosphere model

v2.2.0

LSL 2.2.0. Changes include:

• Add a keyword to lsl.imaging.selfcal functions that will return whether or not a call converged
• Made lsl.readers.buffer.TBFFrameBuffer more robust
• Fixed reference counting in lsl.imaging._gridder
• Moved data used for unit tests from lsl/data to tests/data to keep them out of the install
• Various cleanups to internal regular expressions
• Changed the file downloaders to only show progress for interactive sessions
• Updated possm.py to works with the current version of LSL
• Removed aipy code in lsl.sim.vis in favor of direct calls to aipy
• Added support to the lsl.readers for returning DRX, TBN, and TBF data as "ci8" data
• Added support to the lsl.readers for returning VDIF data as "i8" data

v2.1.8

LSL 2.1.7. Changes include:

• Added polarization basis conversions functions to lsl.imaging.utils
• Improved TBF frame count reliability
• Fixed several bugs in lsl.sim.dp.point_source() that lead to data that would not image properly
• Dropped unlzw in favor of using the gzip utility
• Made antenna inclusion/exclusion more robust in lsl.imaging.data.VisibilityDataSet.get_antenna_subset()
• Added support for "long (ionospheric) product names"
• Updated the Hamming window coefficients
• Switched the PFB in lsl.correlator.fx to a Hamming window
• Updated the documentation in lsl.correlator.fx to clarify that 'pfb' enables a 4-tap Hamming windowed PFB
• Updated the documentation in lsl.correlator.fx to clarify that 'pfb' overrides the 'window' keyword
• Added better documentation on the LWA data formats
• Fixed a bug in lsl.reader.ldp.TBFFile that caused it to die on files with gaps in the frequency coverage
• Updated lsl.imaging.util.build_gridded_image to allow for the image size and pixel size to be used instead of the (u,v) grid size and resolution (@ctaylor-physics)
• Added image size and pixel scale options to imageIDI.py (@ctaylor-physics)
• Added a -d/--decimation option to correlateTBF.py to allow on-the-fly channel decimation
• Fixed a bug in lsl.sim.vis.build_sim_data when computing the hour angle and declination for non-zenith phase centers
• Added support for Python 3.12

v2.1.7

LSL 2.1.7. Changes include:

• Updated the LWA-SV SSMIF to 2022/11/15
• Updated the LWA1 SSMIF to 2022/11/15
• Fixed a build problem on Python 3.8+

v2.1.6

LSL 2.1.6. Changes include:

• Updated for Python 3.10
• Cleaned up the naming of the tutorial notebooks
• Added support for observing with TRK_LUN