Small app to retrieve astronomical object photometry over time (lightcurve)
Project description
LCExtract
Quickstart
To run application from python console
from LCExtract.LCExtract import LCExtract
LCExtract()
Description
Currently a standalone application written in Python to take astronomical object positions and search for photometry data over time which produces a lightcurve for the object.
Queries data from Panoramic Survey Telescope And Rapid Response System (Pan-STARRS) DR2 as hosted at the Mikulski Archive for Space Telescopes (MAST) and the Zwicky Transient Facility (ZTF) but other time domain based facilities will be added in to the query over time to provide a more comprehensive history of the object's luminosity variation.
Options selectable by the user are
- File or Manual entry
- File input requires
name
,RA
,DEC
,description
CSV separation - see example file test_objects.csv - Manual entry allows named or positional coordinate entry
- File input requires
- Archive / Catalog
- Pan-STARRS
- ZTF
- All - consolidate data from facilities
- Photometric filter selection
- Filters
g
,r
,i
,z
,y
are default filters, but note- a subset is user-selectable
- not all filters available within archive(s), e.g., ZTF uses only
g
,r
,i
filters - not all filters available for an object
- Filters
Application will calculate a number of summary statistics from the data returned for an object and provide a plot of any archive data returned.
Data files
Data files are expected to be located in the working directory, preferrably under a subdirectory data/
Project details
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