NSS Tools - Gaia
non-Single stars Tools
To be able to easily handle the non-single star (NSS) solutions provided for the first time in Gaia DR3, two functionalities have been developed to:
- convert the correlation matrix and uncertaintes into the covariance matrix of the NSS solutions without bothering with the matrix indices;
- convert the Thiele-Innes orbital elements of the astrometric solutions to the Campbell elements with uncertainties propagation.
The tool is available both in Python and in R:
Credits: The NSS Tools have been developed by N. Leclerc and C. Babusiaux, based on a software code from J.-L. Halbwachs.