-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Sep. 22, 1997 thru Sep. 24, 1997 TJD 10713-10715 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 10713 0.33 -2.2 62.8 10714 0.32 66.6 10715 0.31 66.0 CYGX-1 10713 0.27 -2.0 61.6 Active 10714 0.30 73.3 10715 0.27 66.0 GRS1915+105 10713 0.07 -2.8 11.1 10714 0.08 13.0 10715 0.07 10.8 4U1700-377 10713 0.15 -3.0 10.6 10714 0.06 5.0 GX339-4 10713 0.07 -2.4 9.4 10714 0.05 7.0 10715 0.07 8.0 1E1740-29 10713 0.07 -2.5 7.4 Possible confusion 10714 0.05 6.5 between 1740 and 10715 0.05 7.4 339-4 GX301-2 10713 0.08 -4.4 6.3 ? CYGX-3 10713 0.05 -3.3 5.3 10715 0.03 3.7 SCOX-1 10713 0.17 -5.0 5.2 10714 0.11 3.5 10715 0.16 6.1 CENX-3 10713 0.06 -4.5 4.2 VELAX-1 10713 0.05 -3.7 4.0 10714 0.03 3.1 CEN_A 10713 0.01 -1.9 3.2 SMCX-1 10714 0.02 -2.0 3.3 Notes: * Spectral index for power law fit to photon number spectrum (photons/cm^2-s) in 20-100 keV band **Detection Significance, = Flux/Sigma -------------------------------------------------------------------------------- The information given above comes from the quick-look analysis performed daily on data obtained from the Burst and Transient Source Experiment (BATSE). The typical sensitivity of these measurements using the Earth occultation technique (one-day integration) is ~100 mCrab. Be aware that sources within about 22 degrees of the orbital poles are not occulted by the Earth; therefore, some bright sources may not show up in the daily averages. These quick-look science results are freely available, but should be considered preliminary. Please use with caution. For additional information, contact B.A. Harmon (harmon@sslmor.msfc.nasa.gov).