------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) ------------------------------------------------------------------------------- Data for: Sep. 8, 1997 thru Sep. 10, 1997 TJD 10699-10701 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CYGX-1 10699 0.26 -2.0 76.2 10700 0.24 61.5 10701 0.23 56.0 CRAB 10699 0.33 -2.2 65.2 10700 0.33 59.8 10701 0.31 43.9 4U1700-377 10699 0.17 -3.0 17.4 10700 0.12 12.5 SCOX-1 10699 0.17 -5.0 10.0 10700 0.16 8.9 10701 0.11 4.9 1E1740-29 10699 0.05 -2.5 8.3 10700 0.05 7.8 10701 0.06 6.1 GRS1915+105 10699 0.05 -2.8 7.4 10700 0.06 9.8 10701 0.07 13.8 GS1826-238 10699 0.03 -3.0 5.5 10700 0.03 5.2 GX339-4 10699 0.04 -2.4 4.8 10700 0.04 5.1 10701 0.05 4.0 VELAX-1 10699 0.04 -3.7 3.7 10700 0.06 5.6 10701 0.05 3.3 CYGX-3 10699 0.03 -3.3 3.5 10700 0.05 6.2 GX301-2 10700 0.07 -4.4 4.5 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).