TAT-C v3.4.10

What's Changed

Added:

• Argument solar_beta to collect_orbit_track to optionally compute solar beta angle.
• CITATION.cff file to provide guidance on citing this project.

Full Changelog: v3.4.9...v3.4.10

TAT-C v3.4.9

What's Changed

Added:

• Utility function buffer_target to buffer a target region based on orbit and instrument geometry to help with culling.

Changed:

• Analysis functions collect_ground_track and collect_ground_pixels check whether the sub-satellite point is inside an expanded mask region (using buffer_target) for culling, rather a slower check for nonzero intersections between the mask region and the viewable limb projection.

Full Changelog: v3.4.8...v3.4.9

TAT-C v3.4.8

What's Changed

Changed:

• Improves performance for TwoLineElements orbits having multiple (perhaps many) TLE pairs.
• Coerces collect_observations observation intervals constrained by start and end times to use the datetime.timezone.utc timezone value to address inability for pandas to combine TzInfo(UTC) and datetime.UTC representations.
• Fixes a geometry indexing bug in collect_ground_track with option crs="spice" when times is a list of length 1.

Full Changelog: v3.4.7...v3.4.8

TAT-C v3.4.7

What's Changed

Added:

• Allow TwoLineElements orbits to accept multiple TLE pairs to more accurately reproduce historical orbits.

Changed:

• Improves analysis function collect_ground_pixels when specifying a mask to include pixels when the footprint center falls outside the masked domain.
• Fixes bugs in utility functions compute_projected_ray_position and compute_limb if the requested times are an array of length 1.
• Fixes a bug in orbit progagation for orbits with a repeat cycle where large state errors occurred at simulation times prior to the epoch date.

Full Changelog: v3.4.6...v3.4.7

TAT-C v3.4.6

What's Changed

Changed:

• Improves analysis function collect_ground_track when specifying a mask to include ground track area when the footprint center falls outside the masked domain.
• Fixed bugs in analysis functions compute_orbit_track, collect_ground_track, and collect_ground_pixels when specifying a mask with multiple geometries in a GeoSeries or GeoDataFrame.

Full Changelog: v3.4.5...v3.4.6

TAT-C v3.4.5

What's Changed

Added:

• Support for Python 3.13.
• Analysis function collect_orbit_track arguments sat_sunlit and solar_altaz optionally report satellite sunlit and solar altitude/azimuth metrics.

Changed:

• Fixes bug in analysis function compute_ground_track when specifying a mask.

Full Changelog: v3.4.4...v3.4.5

TAT-C v3.4.4

What's Changed

Changed:

• Fixes bug in analysis function collect_orbit_track when specifying a mask.
• Allows mask argument to analysis functions collect_orbit_track, collect_ground_track, compute_ground_track, and collect_ground_pixels to have a GeoDataFrame, GeoSeries, or list-like type.

Full Changelog: v3.4.3...v3.4.4

TAT-C v3.4.3

What's Changed

Added:

• Analysis function collect_ground_track arguments sat_altaz and solar_altaz optionally report satellite and solar altitude/azimuth metrics.
• Analysis function collect_ground_pixels allows pixel-level analysis similar to ground tracks.
• Analysis function compute_limb computes the observable limb (maximum extent of viewable Earth).
• Schema PointedInstrument variables cross_track_pixels, along_track_pixels, cross_track_oversampling, along_track_oversampling enable pixel-level analysis.
• Schema PointedInstrument methods compute_footprint, compute_footprint_center, compute_projected_pixel_position, get_pixel_cone_and_clock_angle, and compute_footprint_pixel_array refactor utility functions and add pixel-level capabilities.

Changed:

• Updates analysis function collect_orbit_track to check if a masked area contains each subsatellite point prior to additional computation.
• Refactors analysis function collect_orbit_track and utility function compute_projected_ray_position to use more vectorized calculations.
• Updates analysis function collect_ground_track to check if a masked area contains each footprint center point prior to additional computation.
• Updates analysis function collect_ground_track to compute ground tracks at a designated elevation.
• Renames utility function _get_footprint_point to compute_projected_ray_position.
• Refactors Instrument method is_valid_observation argument from targets to target.
• Refactors utility function compute_footprint_center return type from a Skyfield GeographicPosition to a Shapely Geometry.
• Replaced memory-intensive cross-product in analysis function collect_ro_observations and utility function compute_projected_ray_position.
• Fixes a bug in utility function _split_polygon_antimeridian where a ground track footprint could circle the wrong pole if the smallest longitude coordinate is in the opposite north/south hemisphere.

Full Changelog: v3.4.2...v3.4.3

TAT-C v3.4.2

What's Changed

Changed:

• Analysis functions collect_observations and collect_multi_observations constrain observations to be contained within the ground track when using an instrument that inherits from PointedInstrument (address off-nadir pointing).

Full Changelog: v3.4.1...v3.4.2

TAT-c v3.4.1

What's Changed

Changed

• Use default runtime configuration settings from constructor if default config file cannot be loaded by @ptgrogan in #93

Full Changelog: v3.4.0...v3.4.1