RXTE Galactic Center Observation
| Observation Date: | 2001-02-27 |
| Mission Day: | 2614t |
| Modified Julian Day: | 51967.804 |
| Mission times: | 225919105.00- 225934259.00 |
| 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 | 51967.864 | 265.9604 | -29.75 | 234.32 | 34.92 | 326.43 |
| 1E1743.1-2843 | 51967.809 | 266.5792 | -28.72 | 87.66 | 85.87 | 295.49 |
| 2E1746.7-3225 | 51967.968 | 267.5144 | -32.43 | 10.60 | 5.81 | 17.57 |
| 2S1742-294 | 51967.862 | 266.5230 | -29.52 | 400.93 | 49.18 | 399.74 |
| 2S1803-245 | 51967.824 | 271.7090 | -24.59 | -4.57 | 6.34 | 14.88 |
| 4U_1728-34 | 51967.965 | 262.9920 | -33.83 | 1101.05 | 23.68 | 56.76 |
| 4U_1746-371 | 51967.946 | 267.5523 | -37.05 | 273.79 | 10.94 | 4.45 |
| 4U_1820-30 | 51967.963 | 275.9280 | -30.37 | 1926.33 | 48.75 | 2.90 |
| 4U_1820-30 | 51967.970 | 275.9280 | -30.37 | 2464.89 | 28.39 | 2.90 |
| A1744-361 | 51967.951 | 267.0800 | -36.12 | 6.41 | 4.36 | 11.81 |
| AX_J1749.1-2639 | 51967.818 | 267.3000 | -26.65 | 136.97 | 36.60 | 3068.34 |
| EXO_1722-363 | 51967.952 | 261.4810 | -36.41 | 7.51 | 3.24 | 19.14 |
| EXO_1742-326 | 51967.968 | 266.3690 | -32.69 | 38.62 | 7.06 | 18.85 |
| EXO_1745-248 | 51967.828 | 267.0208 | -24.78 | 12.99 | 3.66 | 16.27 |
| GCRT_J1745-3009 | 51967.916 | 266.2708 | -30.16 | 46.03 | 21.52 | 369.23 |
| GCRT_J1746-2757 | 51967.813 | 266.5417 | -27.95 | 55.29 | 19.81 | 52.38 |
| GRS_1734-292 | 51967.809 | 264.3533 | -29.18 | 38.17 | 5.92 | 21.15 |
| GRS_1747-312 | 51967.972 | 267.6900 | -31.29 | 34.47 | 14.31 | -9.90 |
| GRS_1758-258 | 51967.819 | 270.3025 | -25.74 | 80.81 | 14.16 | 3596.14 |
| GS_1826-238 | 51967.822 | 277.3623 | -23.79 | 463.06 | 2.65 | 3.24 |
| GX_1+4 | 51967.828 | 263.0090 | -24.75 | 183.71 | 35.87 | 7.22 |
| GX_1+4 | 51967.832 | 263.0090 | -24.75 | 304.62 | 10.78 | 7.22 |
| GX_1+4 | 51967.835 | 263.0090 | -24.75 | 223.53 | 10.92 | 7.22 |
| GX_3+1 | 51967.816 | 266.9830 | -26.56 | 4210.46 | 61.87 | 124.20 |
| GX_3+1 | 51967.821 | 266.9830 | -26.56 | 4304.24 | 43.42 | 124.20 |
| GX_5-1 | 51967.820 | 270.2840 | -25.08 | 15217.96 | 111.68 | 96.36 |
| GX_5-1 | 51967.824 | 270.2840 | -25.08 | 12566.72 | 59.49 | 96.36 |
| GX_9+1 | 51967.842 | 270.3846 | -20.53 | 5578.58 | 93.98 | 107.08 |
| H1743-322 | 51967.969 | 266.5700 | -32.24 | 5.66 | 7.77 | 36.30 |
| IGR_J17191-2821 | 51967.818 | 259.7700 | -28.35 | 12.61 | 5.14 | 5.11 |
| IGR_J17331-2406 | 51967.836 | 263.2833 | -24.11 | 7.44 | 8.57 | 64.24 |
| IGR_J17375-3022 | 51967.906 | 264.3946 | -30.38 | 4.13 | 8.89 | 37.82 |
| IGR_J17497-2821 | 51967.810 | 267.4041 | -28.36 | 24.02 | 28.23 | 50.77 |
| IGR_J17511-3057 | 51967.975 | 267.7875 | -30.96 | -60.30 | 27.34 | 69.65 |
| IGR_J17586-2129 | 51967.841 | 269.6440 | -21.39 | 4.25 | 6.08 | 51.43 |
| K1724-356 | 51967.956 | 261.9133 | -35.73 | -22.60 | 8.51 | 27.24 |
| KS_1731-260 | 51967.825 | 263.5539 | -26.09 | 1.87 | 3.49 | 8.78 |
| KS_1732-273 | 51967.818 | 263.9958 | -27.44 | 4.90 | 4.90 | 38.54 |
| KS_1741-293 | 51967.847 | 266.2042 | -29.35 | 114.73 | 84.91 | 564.14 |
| MXB_1730-33 | 51967.967 | 263.3498 | -33.39 | 51.44 | 12.57 | 495.62 |
| OPH_CLU | 51967.840 | 258.1580 | -23.39 | 479.11 | 18.37 | 2.84 |
| RXJ1709.5-263 | 51967.828 | 257.3760 | -26.66 | 3.06 | 0.70 | 2.90 |
| RXS_J172006.1 | 51967.862 | 260.0254 | -31.28 | 12.07 | 3.47 | 7.17 |
| RXS_J172525.5 | 51967.970 | 261.3563 | -32.95 | 32.18 | 7.20 | 15.20 |
| RXS_J173251.1 | 51967.960 | 263.2129 | -34.79 | 22.41 | 5.77 | 56.67 |
| RXS_J175428.3 | 51967.818 | 268.6179 | -26.34 | -8.86 | 4.52 | 33.47 |
| RXS_J180326.2 | 51967.821 | 270.8417 | -25.27 | 133.85 | 19.18 | 5247.51 |
| RXS_J180824.5 | 51967.831 | 272.1021 | -23.15 | 9.41 | 3.63 | 13.50 |
| R_1832-330 | 51967.949 | 278.9317 | -32.99 | 70.89 | 1.37 | 2.83 |
| SAXJ1747.0-2853 | 51967.809 | 266.7879 | -28.88 | 174.68 | 78.55 | 266.56 |
| SAXJ1750.8-2900 | 51967.839 | 267.6000 | -29.03 | 23.41 | 10.06 | 62.60 |
| SAXJ1753.5-2349 | 51967.832 | 268.3917 | -23.82 | -2.61 | 4.36 | 16.78 |
| SAXJ1802.7-2017 | 51967.843 | 270.6663 | -20.29 | 151.72 | 152.14 | 3507.89 |
| SAXJ1805.5-2031 | 51967.843 | 271.3917 | -20.51 | -22.84 | 12.66 | 338.68 |
| SAXJ1806.5-2215 | 51967.837 | 271.6417 | -22.25 | 3.32 | 3.35 | 20.51 |
| SAXJ1808.4-3658 | 51967.944 | 272.1208 | -36.98 | -2.79 | 1.29 | 2.87 |
| SAXJ1808.4-365P | 51967.949 | 271.1200 | -35.50 | -0.08 | 3.31 | 3.12 |
| SAXJ1810.8-2609 | 51967.815 | 272.6850 | -26.15 | 1.23 | 2.82 | 8.28 |
| SGR_1806-20 | 51967.843 | 272.1642 | -20.41 | 12.93 | 6.46 | 23.70 |
| SGR_A | 51967.808 | 266.4000 | -29.00 | 70.84 | 100.27 | 466.55 |
| SLX_1735-269 | 51967.819 | 264.5647 | -27.00 | 89.56 | 5.79 | 16.05 |
| SLX_1737-282 | 51967.812 | 265.2360 | -28.31 | 33.97 | 13.04 | 35.36 |
| SLX_1744-300 | 51967.922 | 266.8580 | -30.04 | 253.24 | 17.94 | 222.38 |
| SLX_1746-331 | 51967.964 | 267.4608 | -33.20 | 16.17 | 5.50 | 13.28 |
| SW_J1729.9-3437 | 51967.961 | 262.5375 | -34.61 | -4.25 | 6.58 | 147.46 |
| SW_J1756.9-2508 | 51967.824 | 269.2380 | -25.11 | 17.13 | 8.78 | 626.49 |
| TERZAN_2 | 51967.896 | 261.8880 | -30.80 | 238.42 | 6.55 | 13.73 |
| WGAJ1715.3-2635 | 51967.828 | 258.8370 | -26.60 | 2.18 | 2.24 | 3.11 |
| XTE_J1710-281 | 51967.818 | 257.5500 | -28.12 | 10.97 | 0.88 | 3.08 |
| XTE_J1710-281P | 51967.813 | 258.5500 | -28.91 | 15.86 | 10.90 | 3.73 |
| XTE_J1719-291 | 51967.811 | 259.8890 | -29.06 | 2.84 | 4.78 | 8.15 |
| XTE_J1719-356 | 51967.957 | 259.9700 | -35.68 | 0.26 | 1.43 | 16.41 |
| XTE_J1720-318 | 51967.934 | 259.9961 | -31.75 | -2.98 | 7.01 | 15.32 |
| XTE_J1723-376 | 51967.948 | 260.9000 | -37.65 | -1.24 | 0.95 | 15.73 |
| XTE_J1726-283 | 51967.816 | 261.6570 | -28.30 | 16.92 | 9.09 | 7.93 |
| XTE_J1728-295 | 51967.810 | 262.1570 | -29.52 | 5.06 | 3.73 | 12.05 |
| XTE_J1734-234 | 51967.839 | 263.5280 | -23.36 | 2.81 | 3.89 | 5.66 |
| XTE_J1737-376 | 51967.946 | 264.4950 | -37.77 | -7.09 | 4.33 | 7.36 |
| XTE_J1739-285 | 51967.811 | 264.9790 | -28.48 | 19.69 | 13.48 | 47.94 |
| XTE_J1739-302 | 51967.892 | 264.7500 | -30.27 | 16.82 | 10.09 | 34.17 |
| XTE_J1743-363 | 51967.950 | 265.7415 | -36.33 | 9.29 | 3.94 | 7.83 |
| XTE_J1744-230 | 51967.838 | 266.0350 | -23.12 | 5.50 | 3.52 | 8.84 |
| XTE_J1747-274 | 51967.816 | 266.9095 | -27.44 | 31.26 | 17.51 | 455.16 |
| XTE_J1748-288 | 51967.810 | 267.0210 | -28.47 | -67.54 | 58.20 | 220.83 |
| XTE_J1751-305 | 51967.975 | 267.8062 | -30.62 | 45.72 | 16.55 | -6.87 |
| XTE_J1752-223 | 51967.839 | 268.0440 | -22.32 | 7.51 | 4.95 | 12.22 |
| XTE_J1752-280 | 51967.810 | 268.2000 | -28.00 | 11.78 | 8.52 | 27.39 |
| XTE_J1755-312 | 51967.972 | 268.7820 | -31.16 | 5.10 | 4.60 | 11.34 |
| XTE_J1756-342 | 51967.958 | 269.0228 | -34.21 | 10.56 | 3.74 | 5.46 |
| XTE_J1757-306 | 51967.974 | 269.4130 | -30.66 | 7.87 | 5.24 | 12.20 |
| XTE_J1759-220 | 51967.838 | 269.9404 | -22.03 | 71.73 | 7.27 | 20.63 |
| XTE_J1805-295 | 51967.977 | 271.4045 | -29.52 | 15.54 | 6.19 | 6.26 |
| XTE_J1807-294 | 51967.977 | 271.7441 | -29.40 | -1.42 | 5.96 | 17.08 |
| XTE_J1812-230 | 51967.830 | 273.2000 | -23.00 | 6.19 | 2.94 | 10.50 |
| XTE_J1814-338 | 51967.953 | 273.4126 | -33.77 | -0.55 | 3.40 | 2.94 |
| XTE_J1817-330 | 51967.956 | 274.4250 | -33.02 | -3.10 | 2.47 | 2.90 |
| XTE_J1818-245 | 51967.816 | 274.6050 | -24.54 | 3.66 | 2.58 | 6.43 |
| XTE_J1819-254 | 51967.815 | 274.8300 | -25.41 | 11.64 | 0.89 | 4.88 |
| XTE_J1819-254P | 51967.812 | 273.8300 | -26.41 | 1.88 | 7.44 | 5.40 |
|
Legend -------------------------- 0 - RXJ1709.5-263 1 - XTE J1710-281 2 - XTE J1710-281P 5 - WGAJ1715.3-2635 6 - IGR J17191-2821 7 - XTE J1719-291 10 - RXS J172006.1 14 - XTE J1726-283 15 - TERZAN 2 16 - XTE J1728-295 25 - KS 1731-260 26 - KS 1732-273 27 - GRS 1734-292 28 - IGR J17375-3022 30 - SLX 1735-269 31 - XTE J1739-302 32 - XTE J1739-285 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 53 - EXO 1745-248 57 - AX J1749.1-2639 58 - IGR J17497-2821 62 - SAXJ1750.8-2900 68 - XTE J1752-280 73 - SW J1756.9-2508 77 - GX 5-1 78 - GRS 1758-258 81 - RXS J180326.2 93 - SAXJ1810.8-2609 100 - XTE J1818-245 101 - XTE J1819-254 104 - 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 19 - GX 1+4 21 - IGR J17331-2406 24 - XTE J1734-234 37 - XTE J1744-230 53 - EXO 1745-248 67 - XTE J1752-223 73 - SW J1756.9-2508 75 - IGR J17586-2129 76 - XTE J1759-220 79 - GX 9+1 80 - SAXJ1802.7-2017 85 - SAXJ1806.5-2215 87 - RXS J180824.5 90 - SGR 1806-20 95 - XTE J1812-230 150 - G11.2-0.3 191 - GX 1+4 192 - GX 1+4 194 - GX 5-1 |
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Legend -------------------------- 12 - EXO 1722-363 18 - 4U 1728-34 20 - RXS J173251.1 35 - XTE J1743-363 55 - A1744-361 59 - SLX 1746-331 61 - 4U 1746-371 72 - XTE J1756-342 103 - 4U 1820-30 105 - R 1832-330 |
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Legend -------------------------- 10 - RXS J172006.1 13 - RXS J172525.5 15 - TERZAN 2 18 - 4U 1728-34 22 - MXB 1730-33 28 - IGR J17375-3022 31 - XTE J1739-302 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 60 - 2E1746.7-3225 63 - GRS 1747-312 65 - XTE J1751-305 71 - XTE J1755-312 74 - XTE J1757-306 83 - XTE J1805-295 103 - 4U 1820-30 195 - 4U 1820-30 |
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Generated automatically on Fri Mar 18 23:17:29 2011 by Craig Markwardt