RXTE Galactic Center Observation
| Observation Date: | 2001-03-28 |
| Mission Day: | 2643r |
| Modified Julian Day: | 51996.723 |
| Mission times: | 228417681.00- 228426865.00 |
| Scan type: | cross |
| Main Page: | Observation List | Source List |
| Observation Page: | Top | Commentary | Sources | Scan Light Curves |
| Map Page: | Reconstructed Model | Residuals |
| Scan Light Curves: | Parts 1 | 2 | 3 | 4 |
Craig Markwardt writes: Here is a summary of the galactic bulge observations over the past two months. * SAX J1750.0-2900 had a very short outburst near Mar 3, 2001, reaching a peak of 210 mCrab, but declining to < 10 mCrab within two weeks. However the source has brightened again, to 30 mCrab. This behavior is reminiscent of SAX J1747. * A new faint source, XTE J1759-220 has become more prominent. The best coordinates are (RA=269.854, DEC=-22.00). The source really became obvious in Feb 2001 at about 8 mCrab, but I think we were actually seeing it at a lower level since the start of the monitoring observations. I will need to reprocess to find out. An interesting fact is that this source is near the putative SGR 1800-23. The error box for this SGR is very long and thin. * As covered in David Smith's recent article, GRS 1758-258 has "turned off." The X-ray intensity had a precipitous drop around Feb 20 to ~5 mCrab from a more typical 20 mCrab, and appears to be subsequently declining further yet. * KS 1731-260 has turned off! The source had a remarkable segment of constant intensity in fall 2000 (normally fluctuates between 10-200 mCrab). December 2000 and January 2001 the source was behind the sun, but when we observed it February 2001 the source was not detectable (< 0.7 mCrab). * 4U 1820-30 has been at peak brightness over the past 2-3 weeks, around 600 mCrab. This is about 20% brighter than ever seen in the past 2.5 years. * After a trending incrase over the past 2.5 years, GX 3+1 appears to have flattened out around 400 mCrab within the past 6 months. * The Rapid Burster had another outburst, from which was saw several X-ray bursts. * We saw a very short outburst of XTE J1739-302, up to about 17 mCrab. In the next observation the source was <= 2 mCrab. According to David Smith this kind of behavior has happened before. Craig
| Source | Time (MJD) | RA (2000) | DEC (2000) | Rate (ct/s/5PCU) | Error (ct/s/5PCU) | Bkg (ct/s/5PCU) |
|---|---|---|---|---|---|---|
| 1E1740.7-2942 | 51996.781 | 265.9604 | -29.75 | 278.03 | 45.28 | 330.75 |
| 1E1743.1-2843 | 51996.795 | 266.5792 | -28.72 | 150.04 | 116.79 | 252.98 |
| 2E1746.7-3225 | 51996.748 | 267.5144 | -32.43 | -4.68 | 8.04 | 18.30 |
| 2S1742-294 | 51996.782 | 266.5230 | -29.52 | 443.74 | 68.67 | 406.48 |
| 2S1803-245 | 51996.810 | 271.7090 | -24.59 | -1.05 | 8.34 | 14.32 |
| 4U_1711-34 | 51996.747 | 258.5800 | -34.05 | -2.67 | 1.31 | 9.89 |
| 4U_1728-34 | 51996.746 | 262.9920 | -33.83 | 816.35 | 26.27 | 40.65 |
| 4U_1746-371 | 51996.726 | 267.5523 | -37.05 | 228.71 | 12.90 | 4.90 |
| 4U_1820-30 | 51996.744 | 275.9280 | -30.37 | 4222.49 | 88.30 | 3.61 |
| 4U_1820-30 | 51996.751 | 275.9280 | -30.37 | 5038.35 | 52.83 | 3.61 |
| A1744-361 | 51996.731 | 267.0800 | -36.12 | -5.82 | 5.15 | 11.54 |
| AX_J1749.1-2639 | 51996.804 | 267.3000 | -26.65 | 43.27 | 48.28 | 2900.90 |
| EXO_1722-363 | 51996.733 | 261.4810 | -36.41 | -9.22 | 3.96 | 25.05 |
| EXO_1742-326 | 51996.748 | 266.3690 | -32.69 | 38.95 | 9.26 | 22.77 |
| EXO_1745-248 | 51996.815 | 267.0208 | -24.78 | 7.59 | 4.76 | 16.99 |
| GCRT_J1745-3009 | 51996.770 | 266.2708 | -30.16 | 5.14 | 28.13 | 417.45 |
| GCRT_J1746-2757 | 51996.799 | 266.5417 | -27.95 | 57.31 | 27.25 | 59.81 |
| GRS_1734-292 | 51996.795 | 264.3533 | -29.18 | 54.52 | 8.24 | 19.88 |
| GRS_1747-312 | 51996.753 | 267.6900 | -31.29 | 39.41 | 19.21 | 1.85 |
| GRS_1758-258 | 51996.806 | 270.3025 | -25.74 | 23.18 | 15.87 | 3255.40 |
| GS_1826-238 | 51996.808 | 277.3623 | -23.79 | 419.49 | 3.29 | 3.95 |
| GX_1+4 | 51996.814 | 263.0090 | -24.75 | -5.18 | 35.52 | 10.12 |
| GX_1+4 | 51996.818 | 263.0090 | -24.75 | 12.72 | 6.26 | 10.12 |
| GX_1+4 | 51996.821 | 263.0090 | -24.75 | -0.98 | 8.59 | 10.12 |
| GX_3+1 | 51996.802 | 266.9830 | -26.56 | 4328.55 | 80.41 | 57.80 |
| GX_3+1 | 51996.807 | 266.9830 | -26.56 | 4067.36 | 56.22 | 57.80 |
| GX_5-1 | 51996.806 | 270.2840 | -25.08 | 11026.99 | 121.43 | 34.28 |
| GX_5-1 | 51996.810 | 270.2840 | -25.08 | 11457.42 | 73.44 | 34.28 |
| GX_9+1 | 51996.829 | 270.3846 | -20.53 | 5963.95 | 123.74 | 96.08 |
| H1743-322 | 51996.749 | 266.5700 | -32.24 | 13.28 | 10.12 | 35.13 |
| IGR_J17191-2821 | 51996.804 | 259.7700 | -28.35 | -2.79 | 6.85 | 6.12 |
| IGR_J17331-2406 | 51996.821 | 263.2833 | -24.11 | 15.77 | 9.50 | 4.72 |
| IGR_J17375-3022 | 51996.774 | 264.3946 | -30.38 | 7.47 | 11.29 | 28.10 |
| IGR_J17497-2821 | 51996.796 | 267.4041 | -28.36 | 15.95 | 41.76 | 97.91 |
| IGR_J17511-3057 | 51996.755 | 267.7875 | -30.96 | -34.04 | 36.21 | 59.25 |
| IGR_J17586-2129 | 51996.827 | 269.6440 | -21.39 | 11.08 | 8.46 | 49.72 |
| K1724-356 | 51996.737 | 261.9133 | -35.73 | 5.48 | 11.29 | 24.86 |
| KS_1731-260 | 51996.811 | 263.5539 | -26.09 | 1.34 | 4.91 | 9.50 |
| KS_1732-273 | 51996.804 | 263.9958 | -27.44 | -7.63 | 6.76 | 41.05 |
| KS_1741-293 | 51996.785 | 266.2042 | -29.35 | 130.10 | 114.38 | 584.74 |
| MXB_1730-33 | 51996.747 | 263.3498 | -33.39 | 10.66 | 13.91 | 377.50 |
| OPH_CLU | 51996.826 | 258.1580 | -23.39 | 856.44 | 35.03 | 3.56 |
| RXJ1709.5-263 | 51996.815 | 257.3760 | -26.66 | 2.35 | 0.96 | 3.61 |
| RXS_J172006.1 | 51996.782 | 260.0254 | -31.28 | 45.44 | 4.72 | 10.38 |
| RXS_J172525.5 | 51996.751 | 261.3563 | -32.95 | 21.03 | 9.62 | 15.92 |
| RXS_J173251.1 | 51996.740 | 263.2129 | -34.79 | 16.55 | 7.31 | 48.88 |
| RXS_J175428.3 | 51996.804 | 268.6179 | -26.34 | -2.30 | 6.23 | 34.14 |
| RXS_J180326.2 | 51996.807 | 270.8417 | -25.27 | 25.42 | 23.40 | 4773.11 |
| RXS_J180824.5 | 51996.817 | 272.1021 | -23.15 | 11.19 | 4.67 | 14.36 |
| R_1832-330 | 51996.730 | 278.9317 | -32.99 | 82.12 | 1.82 | 3.55 |
| SAXJ1747.0-2853 | 51996.795 | 266.7879 | -28.88 | 144.30 | 116.07 | 328.77 |
| SAXJ1750.8-2900 | 51996.787 | 267.6000 | -29.03 | 174.15 | 17.67 | 59.09 |
| SAXJ1753.5-2349 | 51996.818 | 268.3917 | -23.82 | 3.84 | 5.69 | 17.49 |
| SAXJ1802.7-2017 | 51996.829 | 270.6663 | -20.29 | 132.11 | 197.04 | 3752.98 |
| SAXJ1805.5-2031 | 51996.829 | 271.3917 | -20.51 | -11.45 | 16.07 | 352.12 |
| SAXJ1806.5-2215 | 51996.823 | 271.6417 | -22.25 | 6.92 | 4.43 | 21.27 |
| SAXJ1808.4-3658 | 51996.724 | 272.1208 | -36.98 | -1.26 | 1.02 | 3.59 |
| SAXJ1808.4-365P | 51996.730 | 271.1200 | -35.50 | -2.82 | 3.99 | 3.84 |
| SAXJ1810.8-2609 | 51996.801 | 272.6850 | -26.15 | 2.63 | 3.90 | 9.06 |
| SGR_1806-20 | 51996.829 | 272.1642 | -20.41 | 4.56 | 8.08 | 26.85 |
| SGR_A | 51996.795 | 266.4000 | -29.00 | 10.47 | 134.66 | 525.97 |
| SLX_1735-269 | 51996.805 | 264.5647 | -27.00 | 96.06 | 7.83 | 13.30 |
| SLX_1737-282 | 51996.798 | 265.2360 | -28.31 | 50.92 | 17.55 | 18.95 |
| SLX_1744-300 | 51996.769 | 266.8580 | -30.04 | 285.96 | 24.05 | 226.27 |
| SLX_1746-331 | 51996.745 | 267.4608 | -33.20 | 10.49 | 7.02 | 11.26 |
| SW_J1729.9-3437 | 51996.741 | 262.5375 | -34.61 | -0.17 | 8.45 | 118.09 |
| SW_J1756.9-2508 | 51996.810 | 269.2380 | -25.11 | -16.33 | 11.69 | 574.89 |
| TERZAN_2 | 51996.776 | 261.8880 | -30.80 | 212.40 | 8.19 | 14.45 |
| WGAJ1715.3-2635 | 51996.814 | 258.8370 | -26.60 | 3.29 | 3.07 | 3.82 |
| XTE_J1710-281 | 51996.804 | 257.5500 | -28.12 | 56.01 | 1.70 | 3.78 |
| XTE_J1710-281P | 51996.799 | 258.5500 | -28.91 | 4.44 | 13.73 | 4.48 |
| XTE_J1719-291 | 51996.797 | 259.8890 | -29.06 | 4.18 | 6.11 | 5.36 |
| XTE_J1719-356 | 51996.737 | 259.9700 | -35.68 | 3.29 | 1.95 | 17.13 |
| XTE_J1720-318 | 51996.770 | 259.9961 | -31.75 | 2.06 | 9.12 | 32.60 |
| XTE_J1723-376 | 51996.728 | 260.9000 | -37.65 | 0.57 | 1.16 | 16.44 |
| XTE_J1726-283 | 51996.802 | 261.6570 | -28.30 | 15.70 | 12.86 | 8.64 |
| XTE_J1728-295 | 51996.796 | 262.1570 | -29.52 | 5.47 | 4.81 | 12.76 |
| XTE_J1734-234 | 51996.824 | 263.5280 | -23.36 | -4.14 | 5.75 | 7.70 |
| XTE_J1737-376 | 51996.726 | 264.4950 | -37.77 | -4.94 | 5.14 | 8.07 |
| XTE_J1739-285 | 51996.797 | 264.9790 | -28.48 | -4.16 | 17.53 | 62.19 |
| XTE_J1739-302 | 51996.775 | 264.7500 | -30.27 | 1.16 | 12.49 | 37.19 |
| XTE_J1743-363 | 51996.731 | 265.7415 | -36.33 | 7.40 | 5.08 | 8.50 |
| XTE_J1744-230 | 51996.823 | 266.0350 | -23.12 | 8.78 | 4.72 | 9.55 |
| XTE_J1747-274 | 51996.802 | 266.9095 | -27.44 | 19.52 | 23.78 | 425.73 |
| XTE_J1748-288 | 51996.796 | 267.0210 | -28.47 | -59.19 | 83.12 | 250.50 |
| XTE_J1751-305 | 51996.756 | 267.8062 | -30.62 | 24.61 | 21.45 | 12.83 |
| XTE_J1752-223 | 51996.825 | 268.0440 | -22.32 | 7.90 | 6.30 | 12.94 |
| XTE_J1752-280 | 51996.797 | 268.2000 | -28.00 | 18.46 | 11.74 | 27.01 |
| XTE_J1755-312 | 51996.752 | 268.7820 | -31.16 | -1.26 | 6.15 | 16.99 |
| XTE_J1756-342 | 51996.738 | 269.0228 | -34.21 | 13.52 | 4.78 | 6.18 |
| XTE_J1757-306 | 51996.754 | 269.4130 | -30.66 | 21.88 | 7.02 | 11.59 |
| XTE_J1759-220 | 51996.825 | 269.9404 | -22.03 | 56.38 | 9.04 | 23.04 |
| XTE_J1805-295 | 51996.758 | 271.4045 | -29.52 | 5.15 | 8.01 | 13.39 |
| XTE_J1807-294 | 51996.758 | 271.7441 | -29.40 | 8.06 | 7.71 | 10.77 |
| XTE_J1812-230 | 51996.816 | 273.2000 | -23.00 | 9.00 | 3.95 | 11.24 |
| XTE_J1814-338 | 51996.734 | 273.4126 | -33.77 | 4.56 | 4.83 | 3.66 |
| XTE_J1817-330 | 51996.737 | 274.4250 | -33.02 | -0.29 | 3.55 | 3.62 |
| XTE_J1818-245 | 51996.802 | 274.6050 | -24.54 | 5.51 | 3.66 | 6.64 |
| XTE_J1819-254 | 51996.801 | 274.8300 | -25.41 | 5.40 | 1.12 | 5.74 |
| XTE_J1819-254P | 51996.799 | 273.8300 | -26.41 | 10.37 | 10.39 | 6.13 |
|
Legend -------------------------- 8 - XTE J1719-356 18 - 4U 1728-34 20 - RXS J173251.1 35 - XTE J1743-363 59 - SLX 1746-331 61 - 4U 1746-371 72 - XTE J1756-342 96 - XTE J1814-338 103 - 4U 1820-30 105 - R 1832-330 147 - K1724-356 |
|
Legend -------------------------- 10 - RXS J172006.1 13 - RXS J172525.5 15 - TERZAN 2 18 - 4U 1728-34 22 - MXB 1730-33 28 - IGR J17375-3022 36 - 1E1740.7-2942 38 - KS 1741-293 39 - GCRT J1745-3009 40 - EXO 1742-326 42 - 2S1742-294 45 - H1743-322 48 - SLX 1744-300 59 - SLX 1746-331 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 74 - XTE J1757-306 83 - XTE J1805-295 84 - XTE J1807-294 103 - 4U 1820-30 195 - 4U 1820-30 |
|
Legend -------------------------- 0 - RXJ1709.5-263 1 - XTE J1710-281 5 - WGAJ1715.3-2635 7 - XTE J1719-291 10 - RXS J172006.1 14 - XTE J1726-283 15 - TERZAN 2 16 - XTE J1728-295 25 - KS 1731-260 27 - GRS 1734-292 28 - IGR J17375-3022 30 - SLX 1735-269 33 - SLX 1737-282 36 - 1E1740.7-2942 38 - KS 1741-293 39 - GCRT J1745-3009 41 - SGR A 42 - 2S1742-294 43 - GCRT J1746-2757 44 - 1E1743.1-2843 46 - SAXJ1747.0-2853 48 - SLX 1744-300 50 - XTE J1747-274 51 - GX 3+1 57 - AX J1749.1-2639 58 - IGR J17497-2821 62 - SAXJ1750.8-2900 68 - XTE J1752-280 77 - GX 5-1 78 - GRS 1758-258 81 - RXS J180326.2 93 - SAXJ1810.8-2609 100 - XTE J1818-245 101 - XTE J1819-254 102 - XTE J1819-254P 104 - GS 1826-238 193 - GX 3+1 194 - GX 5-1 |
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Legend -------------------------- 0 - RXJ1709.5-263 3 - OPH CLU 5 - WGAJ1715.3-2635 21 - IGR J17331-2406 37 - XTE J1744-230 53 - EXO 1745-248 67 - XTE J1752-223 69 - SAXJ1753.5-2349 76 - XTE J1759-220 85 - SAXJ1806.5-2215 87 - RXS J180824.5 95 - XTE J1812-230 191 - GX 1+4 194 - GX 5-1 |
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Generated automatically on Fri Mar 18 23:19:03 2011 by Craig Markwardt