-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Feb. 6, 1998 thru Feb. 10, 1998 TJD 10850-10854 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CYGX-1 10850 0.33 -2.0 85.9 10851 0.38 92.6 10852 0.38 91.9 10853 0.33 78.7 10854 0.35 92.3 CRAB 10850 0.32 -2.2 69.8 10851 0.30 67.0 10852 0.32 70.8 10853 0.32 74.0 10854 0.32 63.0 4U1700-377 10850 0.11 -3.0 10.6 10851 0.06 5.2 10852 0.15 15.5 10853 0.13 16.0 10854 0.07 9.7 1E1740-29 10850 0.07 -2.5 10.4 10851 0.06 8.1 10852 0.05 7.2 10853 0.04 6.4 10854 0.04 8.3 4U1630-47 10850 0.10 -3.0 10.0 Probable 10851 0.05 5.8 Contaimination 10852 0.05 5.8 from 1700-377 10853 0.06 9.2 10854 0.08 12.1 SCOX-1 10850 0.10 -5.0 6.7 10851 0.10 7.2 10852 0.14 10.9 10853 0.14 11.4 10854 0.13 10.3 GRS1758-258 10850 0.03 -2.0 6.0 10851 0.02 3.3 CEN_A 10850 0.02 -1.9 3.7 10851 0.02 3.6 10854 0.01 3.1 SN1994W 10850 0.02 -2.0 3.6 Doubtfull 10852 0.02 3.7 VELAX-1 10850 0.06 -3.7 3.4 10851 0.06 4.6 10852 0.09 5.9 10853 0.09 7.6 10854 0.11 11.7 NGC4151 10851 0.03 -2.0 6.0 Spurious ? 10854 0.02 3.1 GS1354-645 10851 0.03 -2.5 3.8 GX1+4 10853 0.06 -3.0 6.0 Contaimination 10854 0.05 5.6 from 1700-377? 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).