Details

Autor(en) / Beteiligte

• 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.

Titel

Pan-STARRS Photometric and Astrometric Calibration

Ist Teil von

• The Astrophysical journal. Supplement series, 2020-11, Vol.251 (1), p.6

Ort / Verlag

Saskatoon: The American Astronomical Society

Erscheinungsjahr

2020

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Abstract We present the details of the photometric and astrometric calibration of the Pan-STARRS1 3 π  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 deg 2 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.