v4.0.0

Core and data processing:

• New spectral reconstruction method, based on Tikhonov regularization (its uncertainty is not scaled properly yet)
• Refactoring of phase functions: storage in classes, ability to call as a function of phase angle
• Added support for 3 new phase functions: phase coefficient, sum of exponentials, and Hapke model
• Refactoring of operators: standard deviation handling everywhere
• Database syntax update to make logical key names more intuitive
• Added is_emission_spectrum key to support spectral lines
• Fixed non-uniform grid importer (maximum inaccuracy of Vega zero points reduced from 6% to 3.5% compared to SVO FPS)
• Added handling of uncertainty and NaN values for the grid importer
• Added uncertainty handling for spectral slopes
• Added extrapolation uncertainty (not correct yet)
• Added support for spectra/indices with inhomogeneous uncertainties
• Fixed calculation of color index standard deviations
• Fixed CALSPEC spectra import

Database:

• Added Larissa, Nix, Hydra, Hi‘iaka, Namaka, 2I/Borisov and PSR B0540–69
• Added photospectra of Pluto and Charon regions
• Added new (photo)spectra of the Moon (still no good one)
• Added Jupiter and Saturn rings spectra
• Added Iapetus leading/trailing hemispheres
• Added 16 new (photo)spectra of Saturnian moons
• Added 8 photospectra of Neptunian irregular moons
• Added 18 new photospectra of Jupiter trojans
• Added 2019 UO14, a Saturn trojan
• Added 18 photospectra of Neptune trojans
• Added new photospectra for ~37 comets, ~121 centaurs and TNOs
• Added ~29 new (photo)spectra of asteroids (mostly active or spacecraft targets)
• Added photometry of centaur population, Damocloids and Jupiter family
• Revision of asteroid spectral types
• Added "active asteroid", "Damocloid", "Jupiter family comet" and "Encke-type comet" categories
• Removed "traced spectrum" category
• Category fixes for many objects
• Added/fixed uncertainties for many objects
• Albedo/phase integrals/phase functions added to most objects
• Added 46 new filters (137 → 183)
• Deleted duplicate dwarf planet spectra files

Object names:

• Parsing and formatting provisional designations
• Fixed comet designations parsing
• "Info" part of object name is now translatable
• Complete Russian translation of object names
• If translated name is the same as the English name, it can be skipped (removes most of the German "translation")
• Fixes and improvements in the recursive line splitter
• Reference names that are too long are displayed in the table with an ellipsis
• Added unit tests for parsing and translating, more unit tests for recursive line splitter

GUI:

• Displaying uncertainty of synthetic photometry with sigfig
• Error bars plotting fixed
• 1σ confidence band plotting
• Fixed HTML color code overexposing
• Fixed albedo note translation bug
• Segoe UI set as default GUI font for Windows to display subscript numbers correctly

v3.4.0

General:

• Image processing in chunks to avoid RAM overflow
• Chunks are represented with new classes, SpectralSquare and PhotoSpectralSquare
• sRGB mode is now the default for consistency with future updates
• In GUI, in an albedo mode with no albedo data, the chromaticity would be displayed, with a note
• In a table, in the same case, the square edge is colored with chromaticity, with a note
• Bug fixes (line splitter, tag list update after reload, etc.)

Database syntax:

• Uncertainty for the br and mag can be specified inline, not only via the sd
• Support for the percent_per_100nm parameter of slope
• Support for asymmetric standard deviations

Database:

• Added 27 new database units in total
• Uranian system updates, Proteus and Triton photometry
• 2003 UZ413, 2005 UQ513, 2014 NW65, Dziewanna, Ascanios and some Haumea family members
• Added Vela pulsar and one more 'Oumuamua photometry

v3.3.0

General:

• Total core refactoring (uniform code for data and image processing)
• Unit tests for the core (testTCT.py)
• Color matching functions can be selected as filters
• sRGB processing mode support for images

GUI:

• The settings visibility depends on their applicability to the current tab
• Tooltips for some settings
• German localization reviewed
• Bug fixes and improvements

Database:

• Added subdwarf and brown dwarf spectra
• Added photometry for Hyperion
• Spectra of Ixion, Quaoar and Orcus extracted directly from the paper PDFs
• Other small changes

There is a known issue with brightness of the plotted star spectra, and a long-standing Windows-specific issue where switching to the "Image processing" tab irreversibly shrinks the window.

v3.3.0-beta1

Bug fixing. sRGB for images

v3.2.1

There was an issue with the previous compiled version, upgrading PyInstaller fixed it; meanwhile there was a minor fix to the source code so this gets a new version number!

v3.2.0

First release posted to the main repository instead of the fork; somehow the version number is already 3.2.0...

General:

• Dynamically updating plot window
• "Evaluate" an equation over the image inputs
• New tag system
• Refactoring of object name processing (in the OOP paradigm)
• Color table de#dates
• Light theme for the plot
• Faster gamma correction
• New algorithm for handling color index uncertainty
• Bug fixes and improvements

Database:

• New naming and tagging standards applied
• Added 2014 UZ224, 67P/Churyumov-Gerasimenko and 103P/Hartley 2
• Traced spectra for Ixion, Quaoar and Orcus
• Added albedo for Chaos, Lempo and Hale–Bopp
• Added phase integral for Arawn
• Updated albedos for Phobos and Deimos