-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Dec. 17, 1999 thru Dec. 21, 1999 TJD 11529-11533 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 11529 0.30 -2.2 54.3 11530 0.31 54.4 11531 0.31 60.5 11532 0.31 55.9 11533 0.32 61.4 CYGX-1 11529 0.22 -2.0 39.9 11530 0.23 31.9 11531 0.27 21.9 11532 0.29 21.8 11533 0.28 23.6 4U1700-377 11529 0.16 -3.0 13.1 11531 0.08 7.2 11532 0.09 5.2 GRS1915+105 11529 0.08 -2.8 10.6 11530 0.12 17.9 11531 0.09 10.8 11532 0.10 12.5 11533 0.08 7.8 SCOX-1 11529 0.17 -5.0 9.5 11530 0.20 13.7 11531 0.21 15.5 11532 0.18 14.7 11533 0.18 12.7 CYGX-3 11529 0.08 -3.3 7.0 11531 0.11 4.5 11533 0.12 5.5 NGC4151 11529 0.02 -2.0 3.2 11531 0.02 3.8 11532 0.02 3.6 11533 0.02 3.9 GX1+4 11530 0.08 -3.0 4.1 11531 0.05 3.7 VELAX-1 11531 0.05 -3.7 4.0 11532 0.06 4.2 11533 0.13 10.6 GRS1758-258 11532 0.03 -2.0 4.0 Possible Interference 11533 0.03 3.6 with other G.C. sources 1E1740-29 11532 0.04 -2.5 3.2 11533 0.04 3.8 3C279 11532 0.01 -2.0 3.0 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).