Improved photometric calibration of the SNLS and the SDSS supernova surveys

M. Betoule; J. Marriner; N. Regnault; J.-C. Cuillandre; P. Astier; J. Guy; C. Balland; P. El Hage; D. Hardin; R. Kessler; L. Le Guillou; J. Mosher; R. Pain; P.-F. Rocci; M. Sako; K. Schahmaneche

doi:10.1051/0004-6361/201220610

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Volume 552 (April 2013)

A&A, 552 (2013) A124

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Table 16

Systematic uncertainty budget for SDSS.

Source	u	g	r	i	z

PT measurement error^a	0.0026	0.0015	0.0013	0.0025	0.0018
PT transformation to 2.5^b	0.0029	0.0009	0.0008	0.0009	0.0017
Dispersion around the transformation	0.008	0.007	0.003	0.004	0.004
USNO uniformity	0.0015	0.0010	0.0010	0.0010	0.0010

Notes.

^(a)

This is based on the variance of the PT observations.

^(b)

This is based on the computed statistical error. The error is dominated by the zeropoint offset between the PT and 2.5 m.

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