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), Palomar Transient Factory (PTF) and the Zwicky Transient Facility (ZTF), the latter of which are hosted at NASA/IPAC Infrared Science Archive (IRSA). 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
- PTF
- ZTF
- All - consolidate data from facilities
- Photometric filter selection
- Filters
g
,r
,i
,z
,y
,R
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, preferably under a subdirectory data/
Project details
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