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2022.06.30: PS1 astrometry updated using Gaia EDR3

The astrometry in PS1 has been updated using Gaia EDR3.  Systematic astrometric distortions and color terms (from differential chromatic aberration) are greatly reduced.  It is still possible to access the old positions, but the new astrometry is preferred for most purposes. See PS1 Astrometry Correction Using Gaia EDR3 for more details.

2021.11.04: Bulk image download Python script

A Python script that does faster bulk cutout image downloads from a list of RA and Dec positions has been added to the PS1 Image Cutout Service page.

2020.06.29: PS1 VO Table Access Protocol information added

PS1 has a Virtual Observatory-compatible Table Access Protocol (TAP) interface for the PS1 database.  It provides an alternative to CasJobs for SQL queries of the database.  See the How to retrieve and use PS1 data page for additional information, including a link to a Python Jupyter notebook.

2020.06.29: Missing data sky regions updated

The PS1 DR2 caveats page's description of sky regions with missing data in the PS1 database has been updated.  Currently about 4.9 square degrees (only 0.016%) of the sky has missing objects.  That is substantially reduced from the missing area at the time of the DR2 release.

2019.12.11: Easy cross-match using the MAST catalogs API

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