-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Apr. 22, 1997 thru Apr. 27, 1997 TJD 10560-10565 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 10560 0.33 -2.2 85.9 10561 0.33 92.6 10562 0.33 87.3 10563 0.33 91.0 10564 0.33 95.6 10565 0.33 88.8 CYGX-1 10560 0.31 -2.0 60.6 10561 0.32 69.4 10562 0.31 67.7 10563 0.37 73.1 10564 0.40 58.9 10565 0.40 31.5 GRS1915+105 10560 0.12 -2.8 16.7 10561 0.11 16.0 10562 0.09 11.1 10563 0.11 10.7 10564 0.10 10.0 10565 0.08 3.9 SCOX-1 10560 0.18 -5.0 13.7 10561 0.15 12.7 10562 0.14 11.3 10563 0.27 19.0 10564 0.22 15.7 10565 0.33 19.5 1E1740-29 10560 0.06 -2.5 8.8 10561 0.06 9.6 10562 0.06 8.7 10563 0.06 6.9 10564 0.05 7.6 10565 0.04 5.7 4U1700-377 10560 0.10 -3.0 8.7 10561 0.13 13.9 10562 0.04 4.4 10563 0.14 11.8 10564 0.10 9.4 10565 0.05 4.8 VELAX-1 10560 0.11 -3.7 7.3 10561 0.10 7.0 10564 0.10 8.0 10565 0.12 7.9 NGC4151 10560 0.02 -2.0 4.8 10561 0.01 3.4 10562 0.01 4.0 10563 0.01 4.2 10564 0.01 3.1 MRK421 10560 0.02 -2.0 4.0 CYGX-3 10560 0.05 -3.3 3.9 10563 0.05 3.8 10564 0.06 4.0 10565 0.07 4.7 OAO1657-415 10560 0.05 -3.4 3.2 10561 0.06 5.5 GRS1758-258 10561 0.02 -2.0 4.0 10562 0.02 4.3 PKS2155-30 10561 0.02 -2.0 3.1 10562 0.02 4.3 GX301-2 10562 0.11 -4.4 7.5 10563 0.08 4.8 10564 0.05 3.4 CENX-3 10564 0.07 -4.5 4.5 10565 0.04 3.1 HERX-1 10565 0.04 -4.4 4.4 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).