RXTE Galactic Center Observation
| Observation Date: | 2001-03-18 |
| Mission Day: | 2633a |
| Modified Julian Day: | 51986.047 |
| Mission times: | 227495249.00- 227504463.00 |
| Scan type: | regular |
| 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 | 51986.078 | 265.9604 | -29.75 | 223.32 | 32.26 | 253.45 |
| 1E1743.1-2843 | 51986.082 | 266.5792 | -28.72 | 160.55 | 83.30 | 183.06 |
| 2E1746.7-3225 | 51986.080 | 267.5144 | -32.43 | 18.09 | 9.81 | 19.94 |
| 2S1742-294 | 51986.080 | 266.5230 | -29.52 | 143.28 | 38.36 | 409.55 |
| 2S1803-245 | 51986.137 | 271.7090 | -24.59 | -6.59 | 6.82 | 13.42 |
| 4U_1728-34 | 51986.063 | 262.9920 | -33.83 | 598.03 | 18.35 | 41.71 |
| 4U_1820-30 | 51986.141 | 275.9280 | -30.37 | 4188.66 | 83.55 | 3.27 |
| 4U_1820-30 | 51986.144 | 275.9280 | -30.37 | 4054.39 | 37.07 | 3.27 |
| 4U_1820-30 | 51986.148 | 275.9280 | -30.37 | 3968.03 | 88.01 | 3.27 |
| A1744-361 | 51986.075 | 267.0800 | -36.12 | 4.93 | 2.89 | 16.00 |
| AX_J1749.1-2639 | 51986.109 | 267.3000 | -26.65 | -34.72 | 45.11 | 3398.38 |
| EXO_1722-363 | 51986.055 | 261.4810 | -36.41 | 8.15 | 8.90 | 22.49 |
| EXO_1742-326 | 51986.077 | 266.3690 | -32.69 | 31.18 | 9.97 | 24.36 |
| EXO_1745-248 | 51986.118 | 267.0208 | -24.78 | 5.46 | 3.59 | 16.64 |
| GCRT_J1745-3009 | 51986.079 | 266.2708 | -30.16 | 15.37 | 17.20 | 310.62 |
| GCRT_J1746-2757 | 51986.085 | 266.5417 | -27.95 | 37.53 | 16.21 | 71.36 |
| GRS_1734-292 | 51986.073 | 264.3533 | -29.18 | 30.82 | 6.47 | 20.19 |
| GRS_1747-312 | 51986.093 | 267.6900 | -31.29 | 8.30 | 15.01 | 17.19 |
| GRS_1758-258 | 51986.130 | 270.3025 | -25.74 | 61.95 | 18.00 | 4458.50 |
| GS_1826-238 | 51986.152 | 277.3623 | -23.79 | 409.87 | 2.52 | 3.60 |
| GX_1+4 | 51986.068 | 263.0090 | -24.75 | 92.51 | 11.43 | 5.30 |
| GX_1+4 | 51986.074 | 263.0090 | -24.75 | 130.78 | 15.66 | 5.30 |
| GX_3+1 | 51986.083 | 266.9830 | -26.56 | 4491.10 | 57.80 | 0.93 |
| GX_3+1 | 51986.118 | 266.9830 | -26.56 | 4775.96 | 86.05 | 0.93 |
| GX_5-1 | 51986.126 | 270.2840 | -25.08 | 14898.39 | 188.93 | 25.75 |
| GX_5-1 | 51986.131 | 270.2840 | -25.08 | 14582.17 | 72.63 | 25.75 |
| GX_5-1 | 51986.133 | 270.2840 | -25.08 | 15769.05 | 131.44 | 25.75 |
| H1743-322 | 51986.078 | 266.5700 | -32.24 | 15.99 | 7.25 | 34.13 |
| IGR_J17191-2821 | 51986.055 | 259.7700 | -28.35 | -1.63 | 3.35 | 5.34 |
| IGR_J17331-2406 | 51986.075 | 263.2833 | -24.11 | -1.25 | 3.95 | 39.96 |
| IGR_J17375-3022 | 51986.071 | 264.3946 | -30.38 | -2.44 | 8.97 | 44.07 |
| IGR_J17497-2821 | 51986.099 | 267.4041 | -28.36 | 6.35 | 22.69 | 133.05 |
| IGR_J17511-3057 | 51986.094 | 267.7875 | -30.96 | -2.85 | 22.24 | 27.41 |
| IGR_J17586-2129 | 51986.132 | 269.6440 | -21.39 | 29.08 | 5.74 | 51.88 |
| K1724-356 | 51986.058 | 261.9133 | -35.73 | -6.46 | 3.98 | 27.72 |
| KS_1731-260 | 51986.073 | 263.5539 | -26.09 | 11.50 | 5.74 | 9.15 |
| KS_1732-273 | 51986.073 | 263.9958 | -27.44 | 10.44 | 8.01 | 45.25 |
| KS_1741-293 | 51986.080 | 266.2042 | -29.35 | 214.63 | 76.32 | 338.25 |
| MXB_1730-33 | 51986.065 | 263.3498 | -33.39 | 16.81 | 10.01 | 286.02 |
| NGC_6440 | 51986.125 | 267.2195 | -20.36 | -1.90 | 29.86 | 6.66 |
| OPH_CLU | 51986.054 | 258.1580 | -23.39 | 282.54 | 3.22 | 3.21 |
| RXS_J172006.1 | 51986.053 | 260.0254 | -31.28 | 33.10 | 6.63 | 10.73 |
| RXS_J172525.5 | 51986.058 | 261.3563 | -32.95 | 28.56 | 3.99 | 15.57 |
| RXS_J173251.1 | 51986.063 | 263.2129 | -34.79 | 17.22 | 5.80 | 36.49 |
| RXS_J175428.3 | 51986.122 | 268.6179 | -26.34 | 28.51 | 9.24 | 33.76 |
| RXS_J180326.2 | 51986.132 | 270.8417 | -25.27 | -22.09 | 22.59 | 6570.73 |
| RXS_J180824.5 | 51986.139 | 272.1021 | -23.15 | 11.76 | 2.60 | 13.83 |
| R_1832-330 | 51986.149 | 278.9317 | -32.99 | 58.51 | 5.61 | 3.20 |
| SAXJ1747.0-2853 | 51986.086 | 266.7879 | -28.88 | 20.37 | 49.19 | 336.16 |
| SAXJ1750.8-2900 | 51986.100 | 267.6000 | -29.03 | 207.53 | 12.79 | 42.85 |
| SAXJ1753.5-2349 | 51986.124 | 268.3917 | -23.82 | -5.00 | 3.59 | 17.15 |
| SAXJ1806.5-2215 | 51986.139 | 271.6417 | -22.25 | 0.24 | 0.95 | 20.94 |
| SAXJ1808.4-3658 | 51986.121 | 272.1208 | -36.98 | -1.20 | 0.78 | 3.24 |
| SAXJ1808.4-365P | 51986.121 | 271.1200 | -35.50 | -3.38 | 3.24 | 3.49 |
| SAXJ1810.8-2609 | 51986.138 | 272.6850 | -26.15 | -0.32 | 3.30 | 8.69 |
| SGR_1806-20 | 51986.146 | 272.1642 | -20.41 | 18.65 | 8.96 | 27.24 |
| SGR_A | 51986.080 | 266.4000 | -29.00 | 33.70 | 105.70 | 385.14 |
| SLX_1735-269 | 51986.075 | 264.5647 | -27.00 | 112.50 | 7.18 | 17.95 |
| SLX_1737-282 | 51986.077 | 265.2360 | -28.31 | 54.78 | 17.82 | 23.92 |
| SLX_1744-300 | 51986.081 | 266.8580 | -30.04 | 251.27 | 19.33 | 125.82 |
| SLX_1746-331 | 51986.080 | 267.4608 | -33.20 | 20.89 | 5.78 | 14.92 |
| SW_J1729.9-3437 | 51986.060 | 262.5375 | -34.61 | -12.18 | 7.35 | 96.55 |
| SW_J1756.9-2508 | 51986.125 | 269.2380 | -25.11 | -4.12 | 6.16 | 777.61 |
| TERZAN_2 | 51986.062 | 261.8880 | -30.80 | 229.11 | 8.20 | 14.10 |
| WGAJ1715.3-2635 | 51986.054 | 258.8370 | -26.60 | 5.58 | 3.14 | 3.47 |
| XTE_J1710-281 | 51986.047 | 257.5500 | -28.12 | 17.89 | 5.56 | 3.43 |
| XTE_J1710-281P | 51986.048 | 258.5500 | -28.91 | 3.02 | 3.40 | 4.10 |
| XTE_J1719-291 | 51986.055 | 259.8890 | -29.06 | 2.26 | 3.59 | 5.28 |
| XTE_J1719-356 | 51986.050 | 259.9700 | -35.68 | 3.63 | 3.56 | 16.78 |
| XTE_J1720-318 | 51986.052 | 259.9961 | -31.75 | 3.46 | 6.08 | 26.13 |
| XTE_J1723-376 | 51986.050 | 260.9000 | -37.65 | -0.61 | 2.79 | 16.09 |
| XTE_J1726-283 | 51986.063 | 261.6570 | -28.30 | 3.28 | 3.48 | 8.29 |
| XTE_J1728-295 | 51986.063 | 262.1570 | -29.52 | 3.70 | 4.14 | 12.41 |
| XTE_J1734-234 | 51986.075 | 263.5280 | -23.36 | 1.39 | 1.24 | 4.64 |
| XTE_J1737-376 | 51986.065 | 264.4950 | -37.77 | -1.55 | 1.11 | 7.72 |
| XTE_J1739-285 | 51986.076 | 264.9790 | -28.48 | 3.27 | 17.14 | 62.65 |
| XTE_J1739-302 | 51986.073 | 264.7500 | -30.27 | 25.66 | 9.49 | 30.14 |
| XTE_J1743-363 | 51986.071 | 265.7415 | -36.33 | 13.24 | 1.30 | 8.19 |
| XTE_J1744-230 | 51986.098 | 266.0350 | -23.12 | 20.55 | 8.22 | 9.21 |
| XTE_J1747-274 | 51986.093 | 266.9095 | -27.44 | 2.46 | 19.17 | 475.80 |
| XTE_J1748-288 | 51986.092 | 267.0210 | -28.47 | 20.99 | 49.93 | 191.28 |
| XTE_J1751-305 | 51986.096 | 267.8062 | -30.62 | 6.45 | 14.53 | 23.89 |
| XTE_J1752-223 | 51986.125 | 268.0440 | -22.32 | -1.85 | 2.70 | 12.59 |
| XTE_J1752-280 | 51986.118 | 268.2000 | -28.00 | 25.78 | 6.52 | 25.30 |
| XTE_J1755-312 | 51986.108 | 268.7820 | -31.16 | 4.52 | 5.03 | 17.72 |
| XTE_J1756-342 | 51986.100 | 269.0228 | -34.21 | 11.96 | 3.02 | 5.83 |
| XTE_J1757-306 | 51986.120 | 269.4130 | -30.66 | 23.36 | 4.93 | 12.45 |
| XTE_J1759-220 | 51986.132 | 269.9404 | -22.03 | 58.69 | 3.79 | 27.16 |
| XTE_J1805-295 | 51986.128 | 271.4045 | -29.52 | 9.75 | 7.34 | 6.22 |
| XTE_J1807-294 | 51986.130 | 271.7441 | -29.40 | -2.02 | 7.18 | 13.53 |
| XTE_J1810-189 | 51986.146 | 272.5863 | -19.07 | -7.84 | 42.79 | 37.10 |
| XTE_J1810-197 | 51986.146 | 272.4630 | -19.73 | -8.17 | 9.27 | 38.65 |
| XTE_J1812-230 | 51986.145 | 273.2000 | -23.00 | 9.40 | 4.03 | 10.90 |
| XTE_J1814-338 | 51986.130 | 273.4126 | -33.77 | -4.21 | 3.94 | 3.31 |
| XTE_J1817-330 | 51986.135 | 274.4250 | -33.02 | 0.37 | 2.50 | 3.26 |
| XTE_J1818-245 | 51986.146 | 274.6050 | -24.54 | 5.62 | 4.68 | 6.49 |
| XTE_J1819-254 | 51986.146 | 274.8300 | -25.41 | 7.87 | 4.17 | 5.40 |
| XTE_J1819-254P | 51986.141 | 273.8300 | -26.41 | 7.78 | 4.81 | 5.76 |
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Legend -------------------------- 1 - XTE J1710-281 2 - XTE J1710-281P 3 - OPH CLU 5 - WGAJ1715.3-2635 7 - XTE J1719-291 8 - XTE J1719-356 9 - XTE J1720-318 10 - RXS J172006.1 12 - EXO 1722-363 13 - RXS J172525.5 14 - XTE J1726-283 15 - TERZAN 2 16 - XTE J1728-295 18 - 4U 1728-34 19 - GX 1+4 20 - RXS J173251.1 22 - MXB 1730-33 |
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Legend -------------------------- 19 - GX 1+4 24 - XTE J1734-234 25 - KS 1731-260 26 - KS 1732-273 27 - GRS 1734-292 30 - SLX 1735-269 31 - XTE J1739-302 32 - XTE J1739-285 33 - SLX 1737-282 35 - XTE J1743-363 36 - 1E1740.7-2942 37 - XTE J1744-230 38 - KS 1741-293 39 - GCRT J1745-3009 40 - EXO 1742-326 41 - SGR A 42 - 2S1742-294 43 - GCRT J1746-2757 44 - 1E1743.1-2843 45 - H1743-322 46 - SAXJ1747.0-2853 48 - SLX 1744-300 50 - XTE J1747-274 51 - GX 3+1 54 - XTE J1748-288 55 - A1744-361 58 - IGR J17497-2821 59 - SLX 1746-331 60 - 2E1746.7-3225 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 72 - XTE J1756-342 191 - GX 1+4 |
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Legend -------------------------- 37 - XTE J1744-230 53 - EXO 1745-248 54 - XTE J1748-288 58 - IGR J17497-2821 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 68 - XTE J1752-280 70 - RXS J175428.3 71 - XTE J1755-312 72 - XTE J1756-342 74 - XTE J1757-306 75 - IGR J17586-2129 76 - XTE J1759-220 77 - GX 5-1 78 - GRS 1758-258 83 - XTE J1805-295 192 - GX 3+1 193 - GX 5-1 194 - GX 5-1 |
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Legend -------------------------- 87 - RXS J180824.5 90 - SGR 1806-20 95 - XTE J1812-230 100 - XTE J1818-245 101 - XTE J1819-254 102 - XTE J1819-254P 103 - 4U 1820-30 104 - GS 1826-238 105 - R 1832-330 150 - G11.2-0.3 195 - 4U 1820-30 196 - 4U 1820-30 |
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Generated automatically on Fri Mar 18 23:18:30 2011 by Craig Markwardt