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Optical and IR magnitudes of blazar PKS 1244-255

ATEL # 1899; M. Buxton, C. Bailyn, P. Coppi, A. Kaptur, J. Isler, M. Urry (Yale Univ.), L. Maraschi (INAF Osservatorio Astronomico di Brera) and G. Fossati (Rice Univ.)
on 13 Jan 2009; 18:10 UT
Password Certification: Michelle Buxton (

Subjects: Infra-Red, Optical, Gamma Ray, AGN

We are conducting a long-term monitoring campaign of the optical and near-IR magnitudes of gamma-ray bright blazars using the SMARTS 1.3m telescope and ANDICAM instrument. In response to the recent flaring of PKS 1244-255 observed by the Fermi Gamma-ray Space Telescope (ATel #1894), we report on the optical and near infrared magnitudes observed on UT 2009 January 10 as follows: B = 16.9, I = 15.5, J = 14.0, H = 13.0, and K = 11.4. The magnitudes for PKS 1244-255 were calculated based on comparison star data from the USNO-B1.0 Catalog and 2MASS All-Sky Catalog of Point Sources. We will continue to monitor this and other gamma-ray bright blazars on a near-daily basis. Our results are publicly available, and can be found at

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R. E. Rutledge , Editor
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