Data Release Two (DR2)

The PTF second data release (DR2) will occur on August 7, 2015. This will include all g- and R-band data obtained through the end of December, 2012. Unlike the first data release (DR1), there will be no spatial restrictions placed on the data and the release scope will encompass the entire northern sky. However, PTF does not use a uniform coverage observation strategy and so there exist significant gaps in coverage on the sky. In particular, in DR2 there is little coverage of the galactic plane, and there is less coverage at g-band than R-band.


R-band (left) and g-band (right) epochal coverage of the Second Data Release. The intensity scale is proportional to the number of epochal exposures in the data release. Each image is centered at 0h,0d. You can also download the epochal and coadded coverage maps in FITS and PNG format.

DR2 will contain the following types of products:

  • 2.2 million individual, processed, and calibrated single exposures, with associated catalog files extracted from those images. This includes all data taken, with the exception of a small number of frames (less than 2%) that were uncalibratible or otherwise pathological.
  • 30 thousand coadded tiles, similar in size to the individual exposures (0.6 x 1.1 degrees), also with extracted photometric catalogs. Because the coadder places strict quality requirements on input exposures, not all areas of the sky that have single exposures also have coadded images. Also, the tiling scheme is designed to cover inter-CCD gaps, and as such any given location on the sky is potentially covered by more than one tile.

Measured photometry will only be available in flat files associated with the image products. Data Release 3 (Fall 2016) will include a searchable photometric database as well as high precision light curve access for all sources on the sky. DR3 will also include a rolling release of more recent data.