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GCN Circular 3112

RXTE Observations of GRB050318
2005-03-18T23:07:23Z (19 years ago)
Craig Markwardt at NASA/GSFC/UMD <>
C. B. Markwardt (GSFC/UMD), P. Boyd (GSFC/UMBC), N. Gehrels (GSFC)
K. Hurley (UCB), F. E. Marshall (GSFC), M. Still (GSFC/USRA)

RXTE observed GRB 050318 starting at 17:47 UTC (123 minutes after the
BAT trigger), at the BAT reported position (Krimm et al, GCN Circ
#3111).  The exposure was 768 seconds.  The RXTE PCA is a non-imaging
instrument with a field of view of approximately 1 degree (FWHM).

A PCA flux of 7E-12 erg/s/cm^2 was detected (2-10 keV), which is about
four times the expected fluctuations due to the cosmic X-ray
background.  The flux is primarily below 6 keV.  No obvious temporal
variations are detected.
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