-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Mar. 20, 1997 thru Mar. 23, 1997 TJD 10527-10530 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 10527 0.34 -2.2 75.7 10528 0.33 68.9 10529 0.34 71.4 10530 0.34 78.4 CYGX-1 10527 0.24 -2.0 49.8 10528 0.34 79.8 10529 0.23 53.2 10530 0.27 50.3 SCOX-1 10527 0.19 -5.0 14.4 10528 0.13 9.9 10529 0.21 16.5 10530 0.13 10.1 GX339-4 10527 0.07 -2.4 9.0 10528 0.07 7.9 10529 0.05 5.8 10530 0.06 7.7 4U1700-377 10527 0.08 -3.0 7.8 10528 0.10 11.0 10529 0.08 6.9 GRS1915+105 10527 0.08 -2.8 6.7 10528 0.07 6.5 10529 0.07 6.5 10530 0.08 9.9 CYGX-3 10527 0.06 -3.3 5.5 10528 0.04 3.2 10530 0.06 3.3 GROJ1744-28 10527 0.22 -4.2 5.3 10528 0.31 18.5 10530 0.28 18.6 NGC4151 10527 0.02 -2.0 4.0 GRS1758-258 10527 0.03 -2.0 4.0 Possible source 10528 0.03 4.1 confusion VELAX-1 10528 0.10 -3.7 6.4 10529 0.07 4.8 GX301-2 10528 0.08 -4.4 5.8 10529 0.05 3.2 CENX-3 10530 0.06 -4.5 5.0 GS1843+00 10505 0.05 -3.5 4.1 Revised recent 10507 0.04 -3.1 5.9 history (two-day 10509 0.08 -3.6 8.3 averages) 10511 0.08 -3.7 7.3 10513 0.07 -3.8 5.6 10515 0.09 -3.5 7.1 10517 0.10 -4.1 6.4 10519 0.09 -5.1 4.0 10521 0.08 -5.0 3.0 10523 0.06 -3.5 3.1 10525 0.06 -4.7 1.4 10526 0.07 -3.5 3.1 10528 0.05 -3.4 4.1 10530 0.03 -3.6 2.5 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).