Input File without radius:
Bob 123.456 12.345 SDSSJ144000 220.003 22.34 A3 300.0 -32.35 Blah 119.998 22.343Input File with radius:
Bob 123.456 12.345 0.002 SDSSJ144000 220.0 22.34 0.003 A3 300.0 -32.35 0.005 Blah 119.998 22.343 0.005
The ID is your own unique identifier and is a strict requirement.
Right Ascension, Declination and radius values must be
in J2000 coordinates and specified in decimal degrees.
The radius must be less than 0.02 degrees (72 arcseconds).
If you input a value with the radius parameter, that value will
be used for all objects.
Only 100 coordinate pairs can be obtain from this service at a time.
The output of the query is returned to either a webpage (html) or a comma separated ascii file (csv). Webpage output is limited to 3000 lines. File output is limited to 40000 lines. Since each object may have 200 or more detections, and a large radius may contain many objects, it is easy to exceed limits with many objects or large radii. Therefore we suggest limiting these.
Two separate output formats are available, long and short. The short format consists of IDs, Magnitudes, uncertainties in magitude, observation Modified Julian Dates (MJDs), the decimal RA and Decination of each detection and a blending flag. The long format includes of most of the additional parameters from the photometry schema.
Photcat contains all the photometry for the frames that match objects in the master frames. This contains the associated master object and master frame ID. This also contains a flag to say whether the measurement vary WRT the magnitude if the object in the master frame (TVAR).Orphancat
Ophancat contains the detections that are covered by the master frame area but do not match sources detected in the master frames.
This checkbox selects whether the user will be informed about the result of the queries for each object or not. This selection is is useful to gauge progress when a long list of objects is given.
This service is solely provided for the investigation astronomical sources monitored CSS project and is provided by CRTS. The service provides source photometry derived from the SExtractor photometry package. CSS images are all taken unfiltered. Magnitudes provide here are in V-band. Rough transformation and photometric calibration is based on a few 10's to 100's stars within each frame. Contact CRTS members for further details to photometry.