RXTE Galactic Center Observation
| Observation Date: | 2001-02-09 |
| Mission Day: | 2596v |
| Modified Julian Day: | 51949.900 |
| Mission times: | 224372129.00- 224381283.00 |
| 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 | 51949.931 | 265.9604 | -29.75 | 254.98 | 32.11 | 271.87 |
| 1E1743.1-2843 | 51949.935 | 266.5792 | -28.72 | 146.30 | 80.50 | 207.18 |
| 2E1746.7-3225 | 51949.933 | 267.5144 | -32.43 | 3.00 | 8.90 | 17.95 |
| 2S1742-294 | 51949.933 | 266.5230 | -29.52 | 293.61 | 37.66 | 369.41 |
| 2S1803-245 | 51949.990 | 271.7090 | -24.59 | 11.48 | 7.35 | 13.54 |
| 4U_1728-34 | 51949.916 | 262.9920 | -33.83 | 531.88 | 16.14 | 31.09 |
| 4U_1820-30 | 51949.993 | 275.9280 | -30.37 | 2362.79 | 63.76 | 3.33 |
| 4U_1820-30 | 51949.996 | 275.9280 | -30.37 | 2283.57 | 28.02 | 3.33 |
| 4U_1820-30 | 51950.001 | 275.9280 | -30.37 | 2138.90 | 58.55 | 3.33 |
| A1744-361 | 51949.928 | 267.0800 | -36.12 | 1.11 | 2.56 | 16.04 |
| AX_J1749.1-2639 | 51949.961 | 267.3000 | -26.65 | 17.70 | 41.06 | 2518.26 |
| EXO_1722-363 | 51949.907 | 261.4810 | -36.41 | -7.81 | 8.97 | 22.36 |
| EXO_1742-326 | 51949.930 | 266.3690 | -32.69 | 33.28 | 9.15 | 19.86 |
| EXO_1745-248 | 51949.971 | 267.0208 | -24.78 | 8.16 | 3.61 | 16.70 |
| GCRT_J1745-3009 | 51949.932 | 266.2708 | -30.16 | 20.59 | 16.82 | 352.67 |
| GCRT_J1746-2757 | 51949.938 | 266.5417 | -27.95 | 49.52 | 15.20 | 64.08 |
| GRS_1734-292 | 51949.926 | 264.3533 | -29.18 | 49.71 | 6.89 | 22.36 |
| GRS_1747-312 | 51949.945 | 267.6900 | -31.29 | 31.15 | 15.12 | 16.83 |
| GRS_1758-258 | 51949.982 | 270.3025 | -25.74 | 119.41 | 21.43 | 4276.73 |
| GS_1826-238 | 51950.005 | 277.3623 | -23.79 | 448.89 | 4.11 | 3.66 |
| GX_1+4 | 51949.921 | 263.0090 | -24.75 | 168.41 | 13.57 | 6.71 |
| GX_1+4 | 51949.927 | 263.0090 | -24.75 | 204.05 | 17.34 | 6.71 |
| GX_3+1 | 51949.936 | 266.9830 | -26.56 | 4092.54 | 54.59 | 35.24 |
| GX_3+1 | 51949.970 | 266.9830 | -26.56 | 3531.63 | 77.74 | 35.24 |
| GX_5-1 | 51949.979 | 270.2840 | -25.08 | 14142.75 | 185.03 | 43.75 |
| GX_5-1 | 51949.983 | 270.2840 | -25.08 | 13880.21 | 72.18 | 43.75 |
| GX_5-1 | 51949.986 | 270.2840 | -25.08 | 15119.46 | 132.79 | 43.75 |
| H1743-322 | 51949.931 | 266.5700 | -32.24 | 7.28 | 6.54 | 33.18 |
| IGR_J17191-2821 | 51949.908 | 259.7700 | -28.35 | -2.66 | 3.48 | 5.56 |
| IGR_J17331-2406 | 51949.927 | 263.2833 | -24.11 | 3.89 | 4.01 | 59.08 |
| IGR_J17375-3022 | 51949.924 | 264.3946 | -30.38 | 8.32 | 9.32 | 32.77 |
| IGR_J17497-2821 | 51949.953 | 267.4041 | -28.36 | -5.69 | 20.67 | 104.05 |
| IGR_J17511-3057 | 51949.947 | 267.7875 | -30.96 | -1.06 | 21.69 | 38.50 |
| IGR_J17586-2129 | 51949.985 | 269.6440 | -21.39 | 6.47 | 5.84 | 52.78 |
| K1724-356 | 51949.910 | 261.9133 | -35.73 | -7.51 | 3.98 | 24.83 |
| KS_1731-260 | 51949.926 | 263.5539 | -26.09 | 4.16 | 5.46 | 9.21 |
| KS_1732-273 | 51949.926 | 263.9958 | -27.44 | -4.70 | 7.81 | 45.93 |
| KS_1741-293 | 51949.932 | 266.2042 | -29.35 | 118.80 | 73.56 | 469.73 |
| MXB_1730-33 | 51949.917 | 263.3498 | -33.39 | -9.07 | 9.51 | 258.47 |
| NGC_6440 | 51949.978 | 267.2195 | -20.36 | 3.53 | 30.53 | 6.72 |
| OPH_CLU | 51949.907 | 258.1580 | -23.39 | 283.96 | 3.24 | 3.27 |
| RXS_J172006.1 | 51949.905 | 260.0254 | -31.28 | 55.16 | 7.19 | 6.51 |
| RXS_J172525.5 | 51949.910 | 261.3563 | -32.95 | 23.04 | 4.10 | 15.63 |
| RXS_J173251.1 | 51949.916 | 263.2129 | -34.79 | 10.04 | 6.02 | 35.58 |
| RXS_J175428.3 | 51949.975 | 268.6179 | -26.34 | -2.17 | 8.71 | 33.85 |
| RXS_J180326.2 | 51949.985 | 270.8417 | -25.27 | -16.86 | 25.43 | 6316.78 |
| RXS_J180824.5 | 51949.991 | 272.1021 | -23.15 | 8.13 | 2.53 | 13.90 |
| R_1832-330 | 51950.002 | 278.9317 | -32.99 | 72.75 | 5.44 | 3.26 |
| SAXJ1747.0-2853 | 51949.939 | 266.7879 | -28.88 | 20.98 | 44.45 | 333.19 |
| SAXJ1750.8-2900 | 51949.953 | 267.6000 | -29.03 | 44.20 | 9.19 | 45.19 |
| SAXJ1753.5-2349 | 51949.977 | 268.3917 | -23.82 | 1.87 | 3.95 | 17.21 |
| SAXJ1806.5-2215 | 51949.991 | 271.6417 | -22.25 | 1.98 | 0.94 | 20.90 |
| SAXJ1808.4-3658 | 51949.974 | 272.1208 | -36.98 | -1.70 | 0.80 | 3.30 |
| SAXJ1808.4-365P | 51949.974 | 271.1200 | -35.50 | -1.90 | 3.44 | 3.55 |
| SAXJ1810.8-2609 | 51949.991 | 272.6850 | -26.15 | 10.95 | 3.53 | 8.74 |
| SGR_1806-20 | 51949.999 | 272.1642 | -20.41 | 12.63 | 8.09 | 27.58 |
| SGR_A | 51949.933 | 266.4000 | -29.00 | 61.49 | 102.04 | 390.34 |
| SLX_1735-269 | 51949.928 | 264.5647 | -27.00 | 114.75 | 6.89 | 13.82 |
| SLX_1737-282 | 51949.929 | 265.2360 | -28.31 | 54.02 | 18.95 | 42.53 |
| SLX_1744-300 | 51949.933 | 266.8580 | -30.04 | 254.93 | 19.47 | 176.39 |
| SLX_1746-331 | 51949.932 | 267.4608 | -33.20 | 15.45 | 5.13 | 12.29 |
| SW_J1729.9-3437 | 51949.913 | 262.5375 | -34.61 | -8.49 | 7.88 | 87.50 |
| SW_J1756.9-2508 | 51949.978 | 269.2380 | -25.11 | -13.25 | 6.27 | 747.17 |
| TERZAN_2 | 51949.915 | 261.8880 | -30.80 | 248.72 | 8.72 | 14.16 |
| WGAJ1715.3-2635 | 51949.907 | 258.8370 | -26.60 | 0.51 | 3.09 | 3.53 |
| XTE_J1710-281 | 51949.900 | 257.5500 | -28.12 | 47.14 | 6.32 | 3.50 |
| XTE_J1710-281P | 51949.901 | 258.5500 | -28.91 | 5.21 | 4.04 | 4.18 |
| XTE_J1719-291 | 51949.908 | 259.8890 | -29.06 | 2.98 | 3.69 | 5.11 |
| XTE_J1719-356 | 51949.903 | 259.9700 | -35.68 | 0.34 | 3.50 | 16.84 |
| XTE_J1720-318 | 51949.905 | 259.9961 | -31.75 | -5.17 | 6.09 | 37.14 |
| XTE_J1723-376 | 51949.903 | 260.9000 | -37.65 | 1.80 | 2.82 | 16.15 |
| XTE_J1726-283 | 51949.915 | 261.6570 | -28.30 | 5.43 | 3.70 | 8.36 |
| XTE_J1728-295 | 51949.916 | 262.1570 | -29.52 | 7.79 | 4.50 | 12.48 |
| XTE_J1734-234 | 51949.928 | 263.5280 | -23.36 | -0.08 | 1.20 | 5.52 |
| XTE_J1737-376 | 51949.917 | 264.4950 | -37.77 | -1.86 | 1.20 | 7.79 |
| XTE_J1739-285 | 51949.929 | 264.9790 | -28.48 | 29.04 | 18.56 | 63.73 |
| XTE_J1739-302 | 51949.926 | 264.7500 | -30.27 | 8.60 | 9.52 | 37.44 |
| XTE_J1743-363 | 51949.924 | 265.7415 | -36.33 | 8.15 | 1.22 | 8.24 |
| XTE_J1744-230 | 51949.951 | 266.0350 | -23.12 | 16.99 | 7.96 | 9.27 |
| XTE_J1747-274 | 51949.946 | 266.9095 | -27.44 | -27.42 | 17.86 | 372.60 |
| XTE_J1748-288 | 51949.945 | 267.0210 | -28.47 | 43.44 | 47.43 | 153.89 |
| XTE_J1751-305 | 51949.949 | 267.8062 | -30.62 | 0.73 | 13.83 | 31.29 |
| XTE_J1752-223 | 51949.977 | 268.0440 | -22.32 | 3.48 | 2.96 | 12.65 |
| XTE_J1752-280 | 51949.971 | 268.2000 | -28.00 | 15.79 | 6.42 | 23.24 |
| XTE_J1755-312 | 51949.959 | 268.7820 | -31.16 | 4.01 | 5.26 | 16.05 |
| XTE_J1756-342 | 51949.953 | 269.0228 | -34.21 | 5.41 | 2.78 | 5.89 |
| XTE_J1757-306 | 51949.973 | 269.4130 | -30.66 | 9.54 | 4.43 | 12.40 |
| XTE_J1759-220 | 51949.985 | 269.9404 | -22.03 | 62.05 | 3.91 | 21.61 |
| XTE_J1805-295 | 51949.981 | 271.4045 | -29.52 | 5.79 | 8.37 | 6.54 |
| XTE_J1807-294 | 51949.983 | 271.7441 | -29.40 | -1.64 | 7.93 | 10.92 |
| XTE_J1810-189 | 51949.999 | 272.5863 | -19.07 | 3.25 | 40.27 | 37.52 |
| XTE_J1810-197 | 51949.999 | 272.4630 | -19.73 | -6.85 | 8.52 | 40.48 |
| XTE_J1812-230 | 51949.998 | 273.2000 | -23.00 | 6.97 | 3.78 | 10.91 |
| XTE_J1814-338 | 51949.982 | 273.4126 | -33.77 | 3.11 | 4.56 | 3.38 |
| XTE_J1817-330 | 51949.988 | 274.4250 | -33.02 | 3.48 | 2.66 | 3.33 |
| XTE_J1818-245 | 51949.999 | 274.6050 | -24.54 | 1.73 | 3.93 | 7.08 |
| XTE_J1819-254 | 51949.999 | 274.8300 | -25.41 | 14.47 | 3.97 | 5.15 |
| XTE_J1819-254P | 51949.994 | 273.8300 | -26.41 | 6.49 | 4.58 | 5.91 |
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Legend -------------------------- 1 - XTE J1710-281 2 - XTE J1710-281P 3 - OPH CLU 7 - XTE J1719-291 10 - RXS J172006.1 11 - XTE J1723-376 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 |
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Legend -------------------------- 19 - GX 1+4 21 - IGR J17331-2406 25 - KS 1731-260 27 - GRS 1734-292 28 - IGR J17375-3022 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 51 - GX 3+1 54 - XTE J1748-288 57 - AX J1749.1-2639 59 - SLX 1746-331 60 - 2E1746.7-3225 62 - SAXJ1750.8-2900 63 - GRS 1747-312 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 57 - AX J1749.1-2639 62 - SAXJ1750.8-2900 63 - GRS 1747-312 67 - XTE J1752-223 68 - XTE J1752-280 69 - SAXJ1753.5-2349 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 86 - 2S1803-245 96 - XTE J1814-338 98 - XTE J1817-330 192 - GX 3+1 193 - GX 5-1 194 - GX 5-1 |
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Legend -------------------------- 85 - SAXJ1806.5-2215 86 - 2S1803-245 87 - RXS J180824.5 90 - SGR 1806-20 93 - SAXJ1810.8-2609 95 - XTE J1812-230 98 - XTE J1817-330 100 - 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 23:16:29 2011 by Craig Markwardt