-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Jul. 18, 1999 thru Jul. 21, 1999 TJD 11377-11380 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CYGX-1 11377 0.30 -2.0 65.7 11378 0.30 71.5 11379 0.26 57.5 11380 0.25 58.7 CRAB 11377 0.32 -2.2 62.5 11378 0.33 69.0 11379 0.32 68.8 11380 0.32 68.4 GRS1915+105 11377 0.15 -2.8 15.9 11378 no useful occultations 11379 0.11 6.7 11380 0.10 11.8 SCOX-1 11377 0.19 -5.0 15.1 11378 0.22 18.3 11379 0.11 8.0 11380 0.18 8.7 CYGX-3 11377 0.05 -3.3 6.2 11378 0.04 5.1 11379 0.05 6.5 11380 0.05 5.8 1E1740-29 11377 0.05 -2.5 4.3 11380 0.07 6.3 NGC4151 11377 0.01 -2.0 3.4 CEN_A 11378 0.02 -1.9 3.3 11379 0.02 4.1 11380 0.02 3.2 4U1700-377 11379 0.04 -3.0 4.6 VELAX-1 11379 0.05 -3.7 3.3 11380 0.24 14.7 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).