RXTE Galactic Center Observation
| Observation Date: | 2001-03-13 |
| Mission Day: | 2628w |
| Modified Julian Day: | 51981.938 |
| Mission times: | 227140289.00- 227149425.00 |
| 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 | 51981.997 | 265.9604 | -29.75 | 320.11 | 35.39 | 146.49 |
| 1E1743.1-2843 | 51982.011 | 266.5792 | -28.72 | -51.61 | 92.01 | 383.79 |
| 2E1746.7-3225 | 51981.964 | 267.5144 | -32.43 | 32.31 | 6.06 | 16.05 |
| 2S1742-294 | 51981.998 | 266.5230 | -29.52 | 135.34 | 53.93 | 383.72 |
| 2S1803-245 | 51982.025 | 271.7090 | -24.59 | -3.18 | 5.56 | 14.14 |
| 4U_1711-34 | 51981.963 | 258.5800 | -34.05 | -1.58 | 0.86 | 9.64 |
| 4U_1728-34 | 51981.961 | 262.9920 | -33.83 | 1346.10 | 24.23 | 127.22 |
| 4U_1746-371 | 51981.941 | 267.5523 | -37.05 | 252.30 | 10.42 | 4.96 |
| 4U_1820-30 | 51981.959 | 275.9280 | -30.37 | 2730.86 | 54.42 | 3.36 |
| 4U_1820-30 | 51981.966 | 275.9280 | -30.37 | 3327.82 | 32.96 | 3.36 |
| A1744-361 | 51981.946 | 267.0800 | -36.12 | 8.71 | 4.32 | 11.86 |
| AX_J1749.1-2639 | 51982.020 | 267.3000 | -26.65 | 99.11 | 38.03 | 3160.51 |
| EXO_1722-363 | 51981.948 | 261.4810 | -36.41 | 12.01 | 3.28 | 23.42 |
| EXO_1742-326 | 51981.963 | 266.3690 | -32.69 | 39.22 | 6.81 | 21.96 |
| EXO_1745-248 | 51982.030 | 267.0208 | -24.78 | 2.54 | 3.48 | 16.73 |
| GCRT_J1745-3009 | 51981.985 | 266.2708 | -30.16 | 7.98 | 20.99 | 314.84 |
| GCRT_J1746-2757 | 51982.014 | 266.5417 | -27.95 | 74.24 | 22.29 | 36.43 |
| GRS_1734-292 | 51982.011 | 264.3533 | -29.18 | 38.62 | 5.97 | 23.34 |
| GRS_1747-312 | 51981.968 | 267.6900 | -31.29 | 19.20 | 14.73 | 6.35 |
| GRS_1758-258 | 51982.021 | 270.3025 | -25.74 | 84.01 | 13.73 | 3073.42 |
| GS_1826-238 | 51982.023 | 277.3623 | -23.79 | 441.98 | 2.57 | 3.70 |
| GX_1+4 | 51982.029 | 263.0090 | -24.75 | 168.56 | 33.11 | 1.22 |
| GX_1+4 | 51982.033 | 263.0090 | -24.75 | 137.63 | 7.93 | 1.22 |
| GX_1+4 | 51982.036 | 263.0090 | -24.75 | 208.69 | 11.07 | 1.22 |
| GX_3+1 | 51982.018 | 266.9830 | -26.56 | 4427.95 | 63.57 | 94.87 |
| GX_3+1 | 51982.023 | 266.9830 | -26.56 | 4439.19 | 44.62 | 94.87 |
| GX_5-1 | 51982.022 | 270.2840 | -25.08 | 10730.01 | 94.08 | 54.59 |
| GX_5-1 | 51982.026 | 270.2840 | -25.08 | 10807.86 | 54.81 | 54.59 |
| GX_9+1 | 51982.044 | 270.3846 | -20.53 | 5684.02 | 62.93 | 13.78 |
| H1743-322 | 51981.964 | 266.5700 | -32.24 | 10.45 | 7.62 | 39.94 |
| IGR_J17191-2821 | 51982.019 | 259.7700 | -28.35 | 7.84 | 5.02 | 4.02 |
| IGR_J17331-2406 | 51982.037 | 263.2833 | -24.11 | -17.07 | 9.25 | 61.43 |
| IGR_J17375-3022 | 51981.988 | 264.3946 | -30.38 | 1.90 | 8.70 | 36.49 |
| IGR_J17497-2821 | 51982.011 | 267.4041 | -28.36 | 52.24 | 35.49 | 162.84 |
| IGR_J17511-3057 | 51981.970 | 267.7875 | -30.96 | -27.34 | 28.07 | 46.60 |
| IGR_J17586-2129 | 51982.042 | 269.6440 | -21.39 | 88.36 | 14.04 | 48.35 |
| K1724-356 | 51981.952 | 261.9133 | -35.73 | -1.94 | 8.83 | 28.53 |
| KS_1731-260 | 51982.026 | 263.5539 | -26.09 | 0.44 | 3.58 | 9.25 |
| KS_1732-273 | 51982.019 | 263.9958 | -27.44 | 5.42 | 5.24 | 43.13 |
| KS_1741-293 | 51982.001 | 266.2042 | -29.35 | -46.04 | 90.98 | 523.39 |
| MXB_1730-33 | 51981.963 | 263.3498 | -33.39 | 222.96 | 12.73 | 598.36 |
| OPH_CLU | 51982.041 | 258.1580 | -23.39 | 471.81 | 22.19 | 3.31 |
| RXJ1709.5-263 | 51982.030 | 257.3760 | -26.66 | 1.10 | 0.68 | 3.36 |
| RXS_J172006.1 | 51981.992 | 260.0254 | -31.28 | 40.75 | 3.44 | 5.82 |
| RXS_J172525.5 | 51981.966 | 261.3563 | -32.95 | 23.15 | 7.00 | 15.67 |
| RXS_J173251.1 | 51981.956 | 263.2129 | -34.79 | 11.41 | 5.51 | 61.23 |
| RXS_J175428.3 | 51982.020 | 268.6179 | -26.34 | 13.88 | 4.93 | 33.92 |
| RXS_J180326.2 | 51982.022 | 270.8417 | -25.27 | 30.81 | 17.46 | 4519.52 |
| RXS_J180824.5 | 51982.032 | 272.1021 | -23.15 | 11.58 | 3.63 | 13.82 |
| R_1832-330 | 51981.945 | 278.9317 | -32.99 | 71.36 | 1.34 | 3.30 |
| SAXJ1747.0-2853 | 51982.010 | 266.7879 | -28.88 | 79.32 | 97.25 | 343.37 |
| SAXJ1750.8-2900 | 51982.002 | 267.6000 | -29.03 | 431.20 | 18.05 | 55.92 |
| SAXJ1753.5-2349 | 51982.033 | 268.3917 | -23.82 | 4.77 | 4.44 | 17.24 |
| SAXJ1806.5-2215 | 51982.038 | 271.6417 | -22.25 | -1.52 | 3.22 | 21.03 |
| SAXJ1808.4-365P | 51981.945 | 271.1200 | -35.50 | -2.58 | 3.04 | 3.59 |
| SAXJ1810.8-2609 | 51982.017 | 272.6850 | -26.15 | 3.36 | 2.85 | 8.89 |
| SGR_1806-20 | 51982.044 | 272.1642 | -20.41 | -3.63 | 4.76 | 29.04 |
| SGR_A | 51982.010 | 266.4000 | -29.00 | 335.13 | 103.81 | 132.39 |
| SLX_1735-269 | 51982.020 | 264.5647 | -27.00 | 104.51 | 6.09 | 16.65 |
| SLX_1737-282 | 51982.013 | 265.2360 | -28.31 | 12.80 | 13.12 | 51.19 |
| SLX_1744-300 | 51981.985 | 266.8580 | -30.04 | 244.57 | 17.25 | 113.08 |
| SLX_1746-331 | 51981.960 | 267.4608 | -33.20 | 1.63 | 5.07 | 17.65 |
| SW_J1729.9-3437 | 51981.957 | 262.5375 | -34.61 | -16.59 | 6.44 | 167.98 |
| SW_J1756.9-2508 | 51982.025 | 269.2380 | -25.11 | 8.39 | 9.06 | 544.15 |
| TERZAN_2 | 51981.990 | 261.8880 | -30.80 | 217.64 | 6.29 | 14.20 |
| WGAJ1715.3-2635 | 51982.029 | 258.8370 | -26.60 | 7.60 | 2.38 | 3.57 |
| XTE_J1710-281 | 51982.019 | 257.5500 | -28.12 | 28.55 | 1.04 | 3.53 |
| XTE_J1710-281P | 51982.015 | 258.5500 | -28.91 | 2.19 | 10.09 | 4.20 |
| XTE_J1719-291 | 51982.012 | 259.8890 | -29.06 | -3.98 | 4.60 | 7.52 |
| XTE_J1719-356 | 51981.952 | 259.9700 | -35.68 | 3.46 | 1.41 | 16.88 |
| XTE_J1720-318 | 51981.984 | 259.9961 | -31.75 | -6.63 | 6.80 | 30.02 |
| XTE_J1723-376 | 51981.943 | 260.9000 | -37.65 | 0.45 | 0.90 | 16.19 |
| XTE_J1726-283 | 51982.017 | 261.6570 | -28.30 | 9.76 | 9.01 | 8.39 |
| XTE_J1728-295 | 51982.011 | 262.1570 | -29.52 | 1.91 | 3.56 | 12.51 |
| XTE_J1734-234 | 51982.039 | 263.5280 | -23.36 | 6.74 | 5.19 | 2.22 |
| XTE_J1737-376 | 51981.941 | 264.4950 | -37.77 | -5.50 | 3.83 | 7.82 |
| XTE_J1739-285 | 51982.013 | 264.9790 | -28.48 | 40.98 | 13.41 | 33.22 |
| XTE_J1739-302 | 51981.991 | 264.7500 | -30.27 | 14.14 | 9.81 | 33.24 |
| XTE_J1743-363 | 51981.946 | 265.7415 | -36.33 | 21.64 | 4.12 | 8.30 |
| XTE_J1744-230 | 51982.038 | 266.0350 | -23.12 | 5.18 | 3.61 | 9.30 |
| XTE_J1747-274 | 51982.017 | 266.9095 | -27.44 | -3.11 | 19.88 | 471.65 |
| XTE_J1748-288 | 51982.011 | 267.0210 | -28.47 | 0.88 | 65.79 | 252.71 |
| XTE_J1751-305 | 51981.971 | 267.8062 | -30.62 | 25.16 | 16.76 | 10.74 |
| XTE_J1752-223 | 51982.039 | 268.0440 | -22.32 | -1.19 | 5.97 | 12.69 |
| XTE_J1752-280 | 51982.012 | 268.2000 | -28.00 | 28.26 | 8.81 | 33.07 |
| XTE_J1755-312 | 51981.968 | 268.7820 | -31.16 | 2.80 | 4.79 | 16.47 |
| XTE_J1756-342 | 51981.954 | 269.0228 | -34.21 | 8.42 | 3.48 | 5.92 |
| XTE_J1757-306 | 51981.969 | 269.4130 | -30.66 | 22.43 | 5.59 | 12.19 |
| XTE_J1759-220 | 51982.039 | 269.9404 | -22.03 | 55.94 | 7.15 | 41.98 |
| XTE_J1805-295 | 51981.973 | 271.4045 | -29.52 | -2.69 | 6.32 | 13.46 |
| XTE_J1807-294 | 51981.973 | 271.7441 | -29.40 | 8.55 | 6.13 | 5.21 |
| XTE_J1812-230 | 51982.031 | 273.2000 | -23.00 | 5.89 | 2.90 | 11.00 |
| XTE_J1814-338 | 51981.949 | 273.4126 | -33.77 | -2.33 | 3.06 | 3.40 |
| XTE_J1817-330 | 51981.952 | 274.4250 | -33.02 | -3.61 | 2.35 | 3.35 |
| XTE_J1818-245 | 51982.018 | 274.6050 | -24.54 | 1.88 | 2.51 | 6.55 |
| XTE_J1819-254 | 51982.017 | 274.8300 | -25.41 | 7.41 | 0.85 | 5.20 |
| XTE_J1819-254P | 51982.014 | 273.8300 | -26.41 | 20.68 | 7.56 | 5.88 |
|
Legend -------------------------- 8 - XTE J1719-356 12 - EXO 1722-363 18 - 4U 1728-34 20 - RXS J173251.1 35 - XTE J1743-363 55 - A1744-361 61 - 4U 1746-371 72 - XTE J1756-342 103 - 4U 1820-30 105 - R 1832-330 |
|
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 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 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 71 - XTE J1755-312 74 - XTE J1757-306 84 - XTE J1807-294 103 - 4U 1820-30 195 - 4U 1820-30 |
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Legend -------------------------- 0 - RXJ1709.5-263 1 - XTE J1710-281 5 - WGAJ1715.3-2635 6 - IGR J17191-2821 10 - RXS J172006.1 14 - XTE J1726-283 15 - TERZAN 2 16 - XTE J1728-295 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 39 - GCRT J1745-3009 41 - SGR A 42 - 2S1742-294 43 - GCRT J1746-2757 46 - SAXJ1747.0-2853 48 - SLX 1744-300 51 - GX 3+1 57 - AX J1749.1-2639 58 - IGR J17497-2821 62 - SAXJ1750.8-2900 68 - XTE J1752-280 70 - RXS J175428.3 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 J1819-254 102 - 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 19 - GX 1+4 24 - XTE J1734-234 37 - XTE J1744-230 53 - EXO 1745-248 69 - SAXJ1753.5-2349 75 - IGR J17586-2129 76 - XTE J1759-220 87 - RXS J180824.5 95 - XTE J1812-230 191 - GX 1+4 192 - GX 1+4 194 - GX 5-1 |
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Generated automatically on Fri Mar 18 23:18:20 2011 by Craig Markwardt