MAXILab

MAXI Light-curve Analysis and Browsing

MAXILab is a Python package for accessing public MAXI/GSC light curves.

Version 0.1.1 contains the data-access layer only: give MAXILab a source name and it resolves the source in the live MAXI catalogue, downloads the latest standard light curve, validates it, and returns it as a pandas.DataFrame.

MAXILab is an independent project and is not an official MAXI-team package.

Install

From PyPI, once released:

pip install maxilab

For development from a local clone:

python -m pip install -e '.[test]'

Quick start

from maxilab import MAXISource

vela = MAXISource("Vela X-1")

print(vela.data.head())
print(vela.data.tail())
print(vela.latest_mjd)

The default product is the 1-ISS-orbit MAXI/GSC light curve.

For the 1-day product:

vela = MAXISource("Vela X-1", binning="day")

The returned table contains:

mjd
flux_2_20   err_2_20
flux_2_4    err_2_4
flux_4_10   err_4_10
flux_10_20  err_10_20

Raw MAXI data and a provenance JSON file are cached locally under:

~/.cache/maxilab/

Testing

Install the test dependencies and run:

python -m pip install -e '.[test]'
pytest -m 'not live'

The test suite enforces >90% coverage. The current release has 100% statement and branch coverage in the deterministic test suite.

To additionally test a real connection to the MAXI website:

MAXILAB_RUN_LIVE=1 pytest -m live --no-cov

Current scope

Version 0.1.1 only handles source resolution, download, validation, local storage, and provenance. Analysis and plotting tools will be added in later releases.

MAXI source catalogue: https://maxi.riken.jp/top/slist.html