Skip to main content

Research Repository

Advanced Search

Pan-STARRS Photometric and Astrometric Calibration

Magnier, Eugene. A.; Schlafly, Edward. F.; Finkbeiner, Douglas P.; Tonry, J.L.; Goldman, B.; Röser, S.; Schilbach, E.; Casertano, S.; Chambers, K.C.; Flewelling, H.A.; Huber, M.E.; Price, P.A.; Sweeney, W.E.; Waters, C.Z.; Denneau, L.; Draper, P.W.; Hodapp, K.W.; Jedicke, R.; Kaiser, N.; Kudritzki, R.-P.; Metcalfe, N.; Stubbs, C.W.; Wainscoat, R.J.

Pan-STARRS Photometric and Astrometric Calibration Thumbnail


Eugene. A. Magnier

Edward. F. Schlafly

Douglas P. Finkbeiner

J.L. Tonry

B. Goldman

S. Röser

E. Schilbach

S. Casertano

K.C. Chambers

H.A. Flewelling

M.E. Huber

P.A. Price

W.E. Sweeney

C.Z. Waters

L. Denneau

K.W. Hodapp

R. Jedicke

N. Kaiser

R.-P. Kudritzki

C.W. Stubbs

R.J. Wainscoat


We present the details of the photometric and astrometric calibration of the Pan-STARRS1 3π Survey. The photometric goals were to reduce the systematic effects introduced by the camera and detectors, and to place all of the observations onto a photometric system with consistent zero-points over the entire area surveyed, the ≈30,000 deg2 north of δ = −30°. Using external comparisons, we demonstrate that the resulting photometric system is consistent across the sky to between 7 and 12.4 mmag depending on the filter. For bright stars, the systematic error floor for individual measurements is (σ g , σ r , σ i , σ z , σ y ) = (14, 14, 15, 15, 18) mmag. The astrometric calibration compensates for similar systematic effects so that positions, proper motions, and parallaxes are reliable as well. The bright-star systematic error floor for individual astrometric measurements is 16 mas. The Pan-STARRS Data Release 2 (DR2) astrometric system is tied to the Gaia DR1 coordinate frame with a systematic uncertainty of ~5 mas.


Magnier, E. A., Schlafly, E. F., Finkbeiner, D. P., Tonry, J., Goldman, B., Röser, S., …Wainscoat, R. (2020). Pan-STARRS Photometric and Astrometric Calibration. Astrophysical Journal Supplement, 251(1), Article 6.

Journal Article Type Article
Acceptance Date Feb 10, 2020
Online Publication Date Oct 30, 2020
Publication Date 2020-11
Deposit Date Nov 27, 2020
Publicly Available Date Nov 27, 2020
Journal Astrophysical Journal Supplement
Print ISSN 0067-0049
Electronic ISSN 1538-4365
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 251
Issue 1
Article Number 6


Published Journal Article (10.2 Mb)

Copyright Statement
© 2020. The American Astronomical Society. All rights reserved.

You might also like

Downloadable Citations