Forced photometry on recent images

Lightcurve at a sky position from the latest survey images

Enter J2000 sky coordinates to get forced aperture photometry at that position on the most recent matching images found in the uploads directory. Choose how far back to look (in days) and how many images to process at most. Results are shown newest first, each with a full-frame preview, a zoom-in cutout marked with a red circle of the aperture used, and a link to the FITS file, plus a copy-paste ASCII table. The recent images are used as they come: some frames may be affected by clouds.

Coordinates (R.A. Dec.)

Look back (days)

Max images

Working...

Accepted coordinate formats:

Sexagesimal with colons: 19:20:11.64 +01:40:40.6
Sexagesimal with spaces: 19 20 11.64 +01 40 40.6
Decimal degrees: 290.0485 +1.6779

The Dec. sign may be -, +, or omitted for positive Dec. The calibration band is always derived automatically from the camera settings.
Press Max lookback to set the day window and the maximum image count to the largest values allowed.

Measuring many images can take a while, since each image is calibrated and measured in turn. Please be patient after pressing Measure.