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Comment: update for DR2 release

This page describes recent changes and additions to the PS1 interfaces, services, and documentation. 

Some information on this page applies to the DR2 data release (planned for 2019 January 28.)

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2019.01.28: PS1 Data Release 2

The PanSTARRS Data Release 2 (DR2) was opened to the public on 2019 January 28.   The release includes a new database with the multi-epoch photometry and astrometry (typically there are 60 epochs of observation over 3 years from the 5 PS1 filters).  It also includes access to the single-epoch "warp" images.  The mean and stack measurements are still available, and the DR1 catalog remains available as well for ongoing research projects.  The 150 terabyte database together with 1.5 petabytes of images comprise the largest single astronomical survey data release to date (to our knowledge).

There are multiple new interfaces available for the catalogs and images.  The new MAST PS1 user interface is a simple web form that provides fast access to the data along with numerous customization options.  The associated MAST API enables straightforward programmatic access from languages such as Python.

The images are available via both the PS1 Image Cutout Service and the MAST Portal.  Both services are also accessible via programmatic interfaces.

Finally, the MAST CasJobs interface provides direct SQL query access to the very large database.  We have also provided a new Python Jupyter notebook that shows how to execute CasJobs queries from Python.

See How to retrieve and use PS1 data for more information and for links to Python.  Also, see the PS1 DR2 caveats for warnings about minor issues associated with the DR2 database and images.

2018.10.23: Sample Python notebook for image retrievals

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