-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Oct. 9, 1997 thru Oct. 12, 1997 TJD 10730-10733 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 10730 0.31 -2.2 77.3 10731 0.32 77.3 10732 0.31 79.2 10733 0.32 72.8 SCOX-1 10730 0.17 -5.0 11.6 10731 0.22 14.2 10732 0.16 10.4 10733 0.15 9.3 GX339-4 10730 0.06 -2.4 7.9 10731 0.07 7.5 10732 0.06 7.1 10733 0.07 8.8 VELAX-1 10730 0.07 -3.7 7.7 10731 0.10 11.3 GRS1915+105 10730 0.08 -2.8 7.2 10731 0.07 5.4 10732 0.12 9.8 10733 0.11 8.3 GRS1758-258 10730 0.04 -2.0 6.5 10731 0.02 3.3 10732 0.04 4.1 4U1700-377 10730 0.07 -3.0 5.5 10733 0.07 4.5 1E1740-29 10730 0.05 -2.5 5.4 10731 0.06 5.9 10732 0.07 7.8 10733 0.09 10.2 CYGX-1 10731 0.31 -2.0 29.4 10732 0.30 31.5 10733 0.27 49.3 NGC4151 10731 0.02 -2.0 4.9 10732 0.01 3.2 CYGX-3 10733 0.05 -3.3 4.8 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).