-------------------------------------------------------------------------------- Compton Observatory ***************** BATSE Bright Source Report ***************** (Earth Occultation Monitoring) -------------------------------------------------------------------------------- Data for: Nov. 18, 1997 thru Nov. 24, 1997 TJD 10770-10776 Source TJD Flux Spectral Signif** Comments (ph/cm^2 sec, Index* 20-100 keV) (20-100 keV) CRAB 10770 0.33 -2.2 57.7 10771 0.31 65.8 10772 0.32 68.0 10773 0.32 76.9 10774 0.31 75.3 10775 0.33 85.2 10776 0.31 76.3 CYGX-1 10770 0.31 -2.0 54.8 10771 0.32 61.9 10772 0.29 46.1 10773 0.30 57.2 10774 0.30 55.7 10775 0.31 58.3 10776 0.32 68.1 GS1354-645 10770 0.06 -2.5 9.6 See earlier 10771 0.07 10.6 flux history at 10772 0.06 8.1 end of this report 10773 0.06 7.6 10774 0.07 9.0 10775 0.06 9.1 10776 0.08 8.9 4U1700-377 10770 0.08 -3.0 8.2 10771 0.06 5.3 10772 0.03 3.8 10774 0.17 8.7 10775 0.09 6.0 SCOX-1 10770 0.18 -5.0 6.4 10771 0.19 7.3 10772 0.18 7.4 10773 0.22 8.2 10774 0.14 5.2 10775 0.23 9.5 10776 0.17 5.9 GX339-4 10770 0.06 -2.4 5.9 10771 0.06 7.1 10772 0.09 6.4 VELAX-1 10770 0.07 -3.7 5.7 10771 0.10 8.8 10772 0.16 12.1 10773 0.15 10.7 10774 0.05 4.1 10775 0.11 7.7 10776 0.10 7.1 GRS1758-258 10770 0.03 -2.0 4.8 10771 0.02 4.0 10772 0.03 4.0 10773 0.03 5.2 10775 0.03 4.8 10776 0.02 3.8 SMCX-1 10770 0.02 -2.0 3.8 10775 0.01 3.3 1E1740-29 10770 0.03 -2.5 3.7 10771 0.04 5.4 10772 0.06 6.3 10773 0.05 6.3 10774 0.05 5.8 10775 0.04 3.9 10776 0.05 3.1 GRS1915+105 10770 0.03 -2.8 3.2 CYGX-3 10771 0.08 -3.3 6.5 10772 0.07 4.7 10773 0.06 4.4 10774 0.06 4.5 10775 0.05 4.0 10776 0.06 4.0 CEN_A 10771 0.02 -1.9 5.1 10773 0.02 4.3 GX301-2 10771 0.05 -4.4 4.4 10772 0.10 7.0 10773 0.10 6.5 10774 0.10 6.0 ASM2000+25 10771 0.02 -2.0 3.6 10774 0.02 3.1 3C273 10772 0.01 -1.6 3.6 GX1+4 10773 0.07 -3.0 7.0 10775 0.06 5.6 HERX-1 10773 0.07 -4.4 4.6 10774 0.08 6.0 10775 0.10 7.7 10776 0.05 3.5 GS1826-238 10773 0.05 -3.0 4.2 10775 0.05 5.0 10776 0.04 4.0 GROJ1744-28 10773 0.07 -4.2 3.1 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). History of 1354-644 10764 .05 7.9 -2.5 65 .05 6.6 66 .08 10.7 67 .07 12.8 68 .06 10.6 69 .06 10.8