Data Release 7 - v4.1.0

Some small updates prior to final release of DR7.

Data Release 7 - v4.0.0

Initial release of ullyses code corresponding to Data Release 7.

Data Release 6 - v3.0.0

This releases the DR6 code to PyPI - it includes a restructuring of the repository to conform with modern build suggestions.

Data Release 6

March 21 2023
Data Release 6 includes:

• Improvements to FUSE data
• Generalization of the coaddition algorithm
• Ability to create timeseries products for non-monitoring targets

Data Release 5b

November 15 2022
Data Release 5b includes:

• New HST high-level science products (HLSPs) for 17 new low-mass targets only

Data Release 5

June 28 2022
Data Release 5 includes:

• Complete refactoring of code API and package structure
• Generalization of most HLSP creation scripts
• Separation of static files and utility scripts into the ullyses-utils repository

Data Release 4

Dec 14 2021
Data Release 4 includes:

• Updates to allow for generalized calibration and HLSP creation of all monitoring stars
• Filename extension change from _sed.fits to _preview-spec.fits

Data Release 3

Aug 31 2021
Data Release 3 includes:

• creation of new time-series spectral products, including products using LCOGT data
• creation of new imaging HLSPs
• the STIS calibration code was vastly improved, and YAML format changed
• error counts are converted to flux using a conversion factor of flux/net counts. coadd.py was updated such that if net counts are zero, interpolation is performed using neighboring conversion values
• fixed a bug where sometimes not all contributing spectra were used when coadding data
• special calibration is now performed for COS data with calibration issues (TW Hydra, SZ10)

Data Release 2

Mar 17 2021
Data Release 2 includes:

• creation of new level 0 STIS products and accompanying YAML files
• FUSE VO files accepted as input spectra to coadd.py
• DQ=16 flags are ignored for STIS/MAMA data only instead of STIS/MAMA and STIS/CCD
• HLSP flux weighting method was improved to use the throughput (NET/FLUX) times exposure time as the weight
• Flux calibration affecting COS/G130M/1096/FPPOS1 data was fixed by the COS team, so the ULLYSES workaround was removed from coadd.py
• The abut code was improved to accept a wider variety of input observing modes

Data Release 1

Nov 5 2020
First version of software to create ULLYSES High Level Science Products (HLSPs). Creates both coadded and abutted COS and STIS spectra for ULLYSES targets.