------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) ------------------------------------------------------------------------------- Data for: Jan. 30, 1997 thru Feb. 2, 1997 TJD 10478-10481 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 10478 0.33 -2.2 59.6 10479 0.33 65.0 10480 0.32 61.1 10481 0.32 62.2 GROJ1744-28 10478 0.63 -4.2 47.5 10479 0.59 37.4 10480 0.58 35.7 10481 0.54 46.5 CYGX-1 10478 0.23 -2.0 31.9 10479 0.21 27.2 10480 0.22 36.8 10481 0.20 30.9 SCOX-1 10478 0.20 -5.0 13.7 10479 0.17 11.2 10480 0.23 15.6 10481 0.19 13.0 GRS1915+105 10478 0.08 -2.8 10.1 10479 0.10 15.8 10480 0.10 14.7 10481 0.09 12.2 GX339-4 10478 0.06 -2.4 8.6 10479 0.08 8.7 10480 0.10 12.6 10481 0.07 12.4 4U1700-377 10478 0.10 -3.0 7.4 10479 0.05 4.9 10480 0.07 4.7 CENX-3 10478 0.09 -4.5 5.4 10479 0.06 4.1 10480 0.10 8.7 10481 0.05 4.6 VELAX-1 10478 0.11 -3.7 3.8 10479 0.11 6.5 10480 0.10 4.9 CEN_A 10479 0.02 -1.9 3.1 NGC4151 10480 0.02 -2.0 3.2 10481 0.02 3.6 GX301-2 10481 0.11 -4.4 4.9 CYGX-3 10481 0.05 -3.3 3.2 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.