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RXTE PCA Upper Limit on X-Ray Flux from V1280 Sco

ATEL # 1010; J. H. Swank (NASA/GSFC)
on 22 Feb 2007; 23:44 UT
Password Certification: Jean Swank (

Subjects: X-ray, Nova
Referred to by ATEL #: 1011

Two perpendicular scans over the position of V1280 Sco were carried out with the RXTE PCA on Feb 21, 2007 between 18:54 UT and 19:27 UT. The data from detector 2 (which has the particle protection of a propane layer) give a 3 sigma upper limit contribution of V1280 Sco of 0.15 mCrab or 3.6x10^-12 ergs cm^-2 s^-1, 2-10 keV. Detectors 0 and 1 were also used during the observation. Preliminary analysis of detectors 0, 1, and 2 together gives a best fit of 0.12 mCrab, but only at a level of 2.4 sigma due to higher background variations.

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