RXTE Galactic Center Observation
| Observation Date: | 2001-03-25 |
| Mission Day: | 2640u |
| Modified Julian Day: | 51993.870 |
| Mission times: | 228171201.00- 228180361.00 |
| 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 | 51993.902 | 265.9604 | -29.75 | 293.40 | 41.24 | 277.46 |
| 1E1743.1-2843 | 51993.905 | 266.5792 | -28.72 | 61.97 | 107.72 | 289.99 |
| 2E1746.7-3225 | 51993.904 | 267.5144 | -32.43 | 21.35 | 12.04 | 20.16 |
| 2S1742-294 | 51993.904 | 266.5230 | -29.52 | 375.18 | 48.80 | 343.89 |
| 2S1803-245 | 51993.960 | 271.7090 | -24.59 | 10.35 | 9.55 | 14.35 |
| 4U_1728-34 | 51993.887 | 262.9920 | -33.83 | 840.35 | 24.10 | 40.59 |
| 4U_1820-30 | 51993.964 | 275.9280 | -30.37 | 5844.11 | 134.26 | 3.91 |
| 4U_1820-30 | 51993.967 | 275.9280 | -30.37 | 6295.57 | 60.31 | 3.91 |
| 4U_1820-30 | 51993.971 | 275.9280 | -30.37 | 6056.29 | 116.63 | 3.91 |
| A1744-361 | 51993.899 | 267.0800 | -36.12 | 1.68 | 3.24 | 16.61 |
| AX_J1749.1-2639 | 51993.932 | 267.3000 | -26.65 | -52.22 | 50.84 | 2452.98 |
| EXO_1722-363 | 51993.878 | 261.4810 | -36.41 | 15.90 | 11.85 | 25.13 |
| EXO_1742-326 | 51993.901 | 266.3690 | -32.69 | 16.42 | 11.49 | 25.32 |
| EXO_1745-248 | 51993.942 | 267.0208 | -24.78 | -1.43 | 4.36 | 17.28 |
| GCRT_J1745-3009 | 51993.903 | 266.2708 | -30.16 | 3.39 | 20.95 | 340.11 |
| GCRT_J1746-2757 | 51993.908 | 266.5417 | -27.95 | 29.27 | 20.31 | 79.92 |
| GRS_1734-292 | 51993.896 | 264.3533 | -29.18 | 46.51 | 9.04 | 16.77 |
| GRS_1747-312 | 51993.916 | 267.6900 | -31.29 | 26.21 | 18.36 | 2.25 |
| GRS_1758-258 | 51993.953 | 270.3025 | -25.74 | 9.85 | 23.14 | 4450.11 |
| GS_1826-238 | 51993.976 | 277.3623 | -23.79 | 446.69 | 5.02 | 4.24 |
| GX_1+4 | 51993.892 | 263.0090 | -24.75 | 35.30 | 14.66 | 6.11 |
| GX_1+4 | 51993.898 | 263.0090 | -24.75 | 84.03 | 18.61 | 6.11 |
| GX_3+1 | 51993.907 | 266.9830 | -26.56 | 3698.52 | 71.30 | -9.38 |
| GX_3+1 | 51993.941 | 266.9830 | -26.56 | 3431.78 | 95.56 | -9.38 |
| GX_5-1 | 51993.950 | 270.2840 | -25.08 | 15981.14 | 270.48 | 22.03 |
| GX_5-1 | 51993.954 | 270.2840 | -25.08 | 15434.39 | 96.17 | 22.03 |
| GX_5-1 | 51993.957 | 270.2840 | -25.08 | 15713.70 | 166.80 | 22.03 |
| H1743-322 | 51993.902 | 266.5700 | -32.24 | 16.52 | 8.77 | 28.19 |
| IGR_J17191-2821 | 51993.879 | 259.7700 | -28.35 | 1.06 | 4.52 | 6.40 |
| IGR_J17331-2406 | 51993.898 | 263.2833 | -24.11 | -0.60 | 5.02 | 28.13 |
| IGR_J17375-3022 | 51993.895 | 264.3946 | -30.38 | 7.41 | 12.55 | 33.81 |
| IGR_J17497-2821 | 51993.923 | 267.4041 | -28.36 | -42.74 | 28.26 | 132.67 |
| IGR_J17511-3057 | 51993.918 | 267.7875 | -30.96 | -34.61 | 26.27 | 51.67 |
| IGR_J17586-2129 | 51993.955 | 269.6440 | -21.39 | 21.98 | 7.14 | 51.39 |
| K1724-356 | 51993.881 | 261.9133 | -35.73 | 4.31 | 5.33 | 29.80 |
| KS_1731-260 | 51993.897 | 263.5539 | -26.09 | 3.98 | 7.40 | 9.79 |
| KS_1732-273 | 51993.897 | 263.9958 | -27.44 | 0.02 | 10.26 | 41.03 |
| KS_1741-293 | 51993.903 | 266.2042 | -29.35 | 81.78 | 95.69 | 569.42 |
| MXB_1730-33 | 51993.888 | 263.3498 | -33.39 | 13.07 | 13.87 | 387.81 |
| NGC_6440 | 51993.949 | 267.2195 | -20.36 | -9.07 | 33.57 | 7.30 |
| OPH_CLU | 51993.878 | 258.1580 | -23.39 | 276.80 | 4.11 | 3.85 |
| RXS_J172006.1 | 51993.876 | 260.0254 | -31.28 | 36.31 | 8.55 | 12.20 |
| RXS_J172525.5 | 51993.881 | 261.3563 | -32.95 | 22.76 | 5.05 | 16.21 |
| RXS_J173251.1 | 51993.887 | 263.2129 | -34.79 | 20.10 | 8.16 | 44.49 |
| RXS_J175428.3 | 51993.946 | 268.6179 | -26.34 | 25.00 | 11.33 | 34.39 |
| RXS_J180326.2 | 51993.955 | 270.8417 | -25.27 | 2.90 | 32.64 | 6534.88 |
| RXS_J180824.5 | 51993.962 | 272.1021 | -23.15 | 7.08 | 3.62 | 14.44 |
| R_1832-330 | 51993.973 | 278.9317 | -32.99 | 68.73 | 7.59 | 3.84 |
| SAXJ1747.0-2853 | 51993.911 | 266.7879 | -28.88 | -2.84 | 58.92 | 374.80 |
| SAXJ1750.8-2900 | 51993.923 | 267.6000 | -29.03 | 49.71 | 11.70 | 42.13 |
| SAXJ1753.5-2349 | 51993.948 | 268.3917 | -23.82 | 2.95 | 4.74 | 17.79 |
| SAXJ1806.5-2215 | 51993.962 | 271.6417 | -22.25 | 2.74 | 1.30 | 21.45 |
| SAXJ1808.4-3658 | 51993.945 | 272.1208 | -36.98 | -1.23 | 1.00 | 3.88 |
| SAXJ1808.4-365P | 51993.945 | 271.1200 | -35.50 | -9.83 | 3.82 | 4.13 |
| SAXJ1810.8-2609 | 51993.962 | 272.6850 | -26.15 | 3.96 | 4.75 | 9.32 |
| SGR_1806-20 | 51993.969 | 272.1642 | -20.41 | 16.27 | 10.68 | 28.14 |
| SGR_A | 51993.904 | 266.4000 | -29.00 | 165.49 | 135.07 | 348.98 |
| SLX_1735-269 | 51993.898 | 264.5647 | -27.00 | 94.93 | 9.07 | 15.71 |
| SLX_1737-282 | 51993.900 | 265.2360 | -28.31 | 190.34 | 27.73 | -11.79 |
| SLX_1744-300 | 51993.904 | 266.8580 | -30.04 | 146.05 | 23.14 | 200.40 |
| SLX_1746-331 | 51993.903 | 267.4608 | -33.20 | 19.96 | 6.90 | 15.99 |
| SW_J1729.9-3437 | 51993.884 | 262.5375 | -34.61 | -15.33 | 9.92 | 122.04 |
| SW_J1756.9-2508 | 51993.949 | 269.2380 | -25.11 | -4.64 | 8.22 | 775.56 |
| TERZAN_2 | 51993.885 | 261.8880 | -30.80 | 226.80 | 10.83 | 14.74 |
| WGAJ1715.3-2635 | 51993.878 | 258.8370 | -26.60 | 4.10 | 3.85 | 4.11 |
| XTE_J1710-281 | 51993.871 | 257.5500 | -28.12 | 45.84 | 6.73 | 4.07 |
| XTE_J1710-281P | 51993.872 | 258.5500 | -28.91 | 0.57 | 4.22 | 4.76 |
| XTE_J1719-291 | 51993.879 | 259.8890 | -29.06 | 4.14 | 4.50 | 6.52 |
| XTE_J1719-356 | 51993.874 | 259.9700 | -35.68 | 0.52 | 4.39 | 17.42 |
| XTE_J1720-318 | 51993.876 | 259.9961 | -31.75 | 5.13 | 7.72 | 28.36 |
| XTE_J1723-376 | 51993.873 | 260.9000 | -37.65 | -2.72 | 3.70 | 16.73 |
| XTE_J1726-283 | 51993.886 | 261.6570 | -28.30 | -0.42 | 4.56 | 8.94 |
| XTE_J1728-295 | 51993.887 | 262.1570 | -29.52 | 3.39 | 5.63 | 13.05 |
| XTE_J1734-234 | 51993.898 | 263.5280 | -23.36 | 0.40 | 1.61 | 5.39 |
| XTE_J1737-376 | 51993.888 | 264.4950 | -37.77 | -2.59 | 1.51 | 8.36 |
| XTE_J1739-285 | 51993.899 | 264.9790 | -28.48 | -47.34 | 25.19 | 162.03 |
| XTE_J1739-302 | 51993.896 | 264.7500 | -30.27 | 9.30 | 12.73 | 37.44 |
| XTE_J1743-363 | 51993.895 | 265.7415 | -36.33 | 5.46 | 1.60 | 8.82 |
| XTE_J1744-230 | 51993.922 | 266.0350 | -23.12 | 9.99 | 10.27 | 9.85 |
| XTE_J1747-274 | 51993.917 | 266.9095 | -27.44 | 17.77 | 23.55 | 350.52 |
| XTE_J1748-288 | 51993.916 | 267.0210 | -28.47 | 112.27 | 66.67 | 92.46 |
| XTE_J1751-305 | 51993.920 | 267.8062 | -30.62 | 24.37 | 17.44 | 6.40 |
| XTE_J1752-223 | 51993.948 | 268.0440 | -22.32 | 0.26 | 3.52 | 13.23 |
| XTE_J1752-280 | 51993.942 | 268.2000 | -28.00 | 19.53 | 8.42 | 17.97 |
| XTE_J1755-312 | 51993.931 | 268.7820 | -31.16 | 8.73 | 6.70 | 19.67 |
| XTE_J1756-342 | 51993.923 | 269.0228 | -34.21 | -1.67 | 3.40 | 6.47 |
| XTE_J1757-306 | 51993.944 | 269.4130 | -30.66 | 36.83 | 6.43 | 13.96 |
| XTE_J1759-220 | 51993.955 | 269.9404 | -22.03 | 54.11 | 4.92 | 26.04 |
| XTE_J1805-295 | 51993.952 | 271.4045 | -29.52 | 18.72 | 10.15 | 2.09 |
| XTE_J1807-294 | 51993.954 | 271.7441 | -29.40 | -9.07 | 10.00 | 20.24 |
| XTE_J1810-189 | 51993.969 | 272.5863 | -19.07 | 10.32 | 52.83 | 38.07 |
| XTE_J1810-197 | 51993.969 | 272.4630 | -19.73 | -6.94 | 11.37 | 43.74 |
| XTE_J1812-230 | 51993.969 | 273.2000 | -23.00 | 3.01 | 4.69 | 11.47 |
| XTE_J1814-338 | 51993.953 | 273.4126 | -33.77 | 3.82 | 5.83 | 3.95 |
| XTE_J1817-330 | 51993.959 | 274.4250 | -33.02 | -1.61 | 3.58 | 3.91 |
| XTE_J1818-245 | 51993.970 | 274.6050 | -24.54 | 4.42 | 5.52 | 6.99 |
| XTE_J1819-254 | 51993.970 | 274.8300 | -25.41 | 6.14 | 4.90 | 5.94 |
| XTE_J1819-254P | 51993.965 | 273.8300 | -26.41 | 6.15 | 6.12 | 6.43 |
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Legend -------------------------- 1 - XTE J1710-281 3 - OPH CLU 5 - WGAJ1715.3-2635 7 - XTE J1719-291 9 - XTE J1720-318 10 - RXS J172006.1 12 - EXO 1722-363 13 - RXS J172525.5 15 - TERZAN 2 16 - XTE J1728-295 18 - 4U 1728-34 19 - GX 1+4 20 - RXS J173251.1 22 - MXB 1730-33 147 - K1724-356 |
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Legend -------------------------- 19 - GX 1+4 25 - KS 1731-260 27 - GRS 1734-292 28 - IGR J17375-3022 30 - SLX 1735-269 31 - XTE J1739-302 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 48 - SLX 1744-300 50 - XTE J1747-274 51 - GX 3+1 54 - XTE J1748-288 59 - SLX 1746-331 60 - 2E1746.7-3225 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 71 - XTE J1755-312 191 - GX 1+4 |
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Legend -------------------------- 37 - XTE J1744-230 50 - XTE J1747-274 54 - XTE J1748-288 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 68 - XTE J1752-280 69 - SAXJ1753.5-2349 70 - RXS J175428.3 71 - XTE J1755-312 74 - XTE J1757-306 75 - IGR J17586-2129 76 - XTE J1759-220 77 - GX 5-1 78 - GRS 1758-258 81 - RXS J180326.2 83 - XTE J1805-295 86 - 2S1803-245 96 - XTE J1814-338 192 - 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 92 - XTE J1810-189 93 - SAXJ1810.8-2609 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 23:18:52 2011 by Craig Markwardt