nsstools
This python tools has two methods that applies on nss_two_body_orbit Gaia DR3 solutions
- covmat: for all kind of nss_solution_type, converts the correlation matrix+uncertainties to the covariance matrix of the solution
- campbell: for a NSS solution that is either astrometric Orbital* or AstroSpectroSB1, converts the Thiele-Innes orbital elements to the Campbell elements and propagates the uncertainties. Ref: Halbwachs et al., 2022, Gaia Data Release 3. Astrometric binary star processing, Astronomy and Astrophysics, Appendix A input: dataframe output: dataframe
A R version is available here.
Installation
with pip
pip3 install --user nsstools
with setup
python3 setup.py install
Usage
See the notebook
import pandas as pd
from nsstools import NssSource
nss = pd.read_csv("tests/data/nss_two_body_orbit_sample.csv.gz")
source_index = 0 # position of the source in the csv file
source = NssSource(nss, indice=source_index)
print(source.covmat())
print(source.campbell())
Authors and acknowledgment
Authors: Nicolas Leclerc from a code by Jean-Louis Halbwachs and Carine Babusiaux. Reference: Halbwachs et al., 2022, Gaia Data Release 3. Astrometric binary star processing, Astronomy and Astrophysics, Appendix A and B. R version: https://gricad-gitlab.univ-grenoble-alpes.fr/ipag-public/gaia/nsstools
Release files for nsstools 0.1.12
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| nsstools-0.1.12.tar.gz | 5.3 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| nsstools-0.1.12-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 10.8 kB
Release files / nsstools-0.1.12.tar.gz
| Download URL | nsstools-0.1.12.tar.gz |
|---|---|
| Size | 5.3 kB |
| Tags | Source |
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Release files / nsstools-0.1.12-py3-none-any.whl
| Download URL | nsstools-0.1.12-py3-none-any.whl |
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| Size | 5.5 kB |
| Tags | Python 3 |
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