RXTE Galactic Center Observation
| Observation Date: | 2001-03-21 |
| Mission Day: | 2636t |
| Modified Julian Day: | 51989.829 |
| Mission times: | 227822001.00- 227830913.00 |
| 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 | 51989.887 | 265.9604 | -29.75 | 198.74 | 43.71 | 320.08 |
| 1E1743.1-2843 | 51989.901 | 266.5792 | -28.72 | 120.55 | 106.29 | 250.27 |
| 2E1746.7-3225 | 51989.854 | 267.5144 | -32.43 | 25.11 | 7.97 | 17.51 |
| 2S1742-294 | 51989.888 | 266.5230 | -29.52 | 123.48 | 63.91 | 480.76 |
| 2S1803-245 | 51989.915 | 271.7090 | -24.59 | -9.06 | 7.83 | 14.28 |
| 4U_1711-34 | 51989.853 | 258.5800 | -34.05 | -3.08 | 1.14 | 9.86 |
| 4U_1728-34 | 51989.851 | 262.9920 | -33.83 | 710.19 | 24.61 | 49.70 |
| 4U_1746-371 | 51989.832 | 267.5523 | -37.05 | 318.57 | 14.99 | 5.06 |
| 4U_1820-30 | 51989.849 | 275.9280 | -30.37 | 4076.36 | 87.03 | 3.58 |
| 4U_1820-30 | 51989.856 | 275.9280 | -30.37 | 5271.08 | 53.70 | 3.58 |
| A1744-361 | 51989.837 | 267.0800 | -36.12 | 2.80 | 5.68 | 13.59 |
| AX_J1749.1-2639 | 51989.910 | 267.3000 | -26.65 | 195.74 | 47.44 | 3143.93 |
| EXO_1722-363 | 51989.839 | 261.4810 | -36.41 | -6.50 | 3.84 | 23.58 |
| EXO_1742-326 | 51989.854 | 266.3690 | -32.69 | 34.97 | 9.17 | 22.71 |
| EXO_1745-248 | 51989.920 | 267.0208 | -24.78 | 1.82 | 4.62 | 16.96 |
| GCRT_J1745-3009 | 51989.876 | 266.2708 | -30.16 | 25.65 | 25.74 | 271.42 |
| GCRT_J1746-2757 | 51989.904 | 266.5417 | -27.95 | 35.21 | 24.49 | 76.03 |
| GRS_1734-292 | 51989.901 | 264.3533 | -29.18 | 40.05 | 7.71 | 21.13 |
| GRS_1747-312 | 51989.858 | 267.6900 | -31.29 | 25.77 | 18.62 | 4.21 |
| GRS_1758-258 | 51989.911 | 270.3025 | -25.74 | 55.18 | 16.80 | 3159.53 |
| GS_1826-238 | 51989.914 | 277.3623 | -23.79 | 418.74 | 3.28 | 3.92 |
| GX_1+4 | 51989.919 | 263.0090 | -24.75 | 116.76 | 41.85 | 12.34 |
| GX_1+4 | 51989.924 | 263.0090 | -24.75 | 106.30 | 10.10 | 12.34 |
| GX_1+4 | 51989.926 | 263.0090 | -24.75 | 93.89 | 12.09 | 12.34 |
| GX_3+1 | 51989.908 | 266.9830 | -26.56 | 3676.40 | 78.11 | 168.76 |
| GX_3+1 | 51989.913 | 266.9830 | -26.56 | 4406.67 | 56.94 | 168.76 |
| GX_5-1 | 51989.912 | 270.2840 | -25.08 | 10518.77 | 123.60 | 42.85 |
| GX_5-1 | 51989.916 | 270.2840 | -25.08 | 11119.08 | 72.63 | 42.85 |
| H1743-322 | 51989.855 | 266.5700 | -32.24 | 11.78 | 10.18 | 37.18 |
| IGR_J17191-2821 | 51989.910 | 259.7700 | -28.35 | 3.37 | 6.59 | 6.27 |
| IGR_J17331-2406 | 51989.927 | 263.2833 | -24.11 | 24.27 | 11.58 | 29.44 |
| IGR_J17375-3022 | 51989.879 | 264.3946 | -30.38 | 5.81 | 11.38 | 41.03 |
| IGR_J17497-2821 | 51989.901 | 267.4041 | -28.36 | 13.50 | 38.39 | 94.33 |
| IGR_J17511-3057 | 51989.861 | 267.7875 | -30.96 | -31.67 | 34.91 | 52.12 |
| K1724-356 | 51989.842 | 261.9133 | -35.73 | -2.31 | 10.77 | 25.33 |
| KS_1731-260 | 51989.916 | 263.5539 | -26.09 | -3.64 | 4.74 | 9.47 |
| KS_1732-273 | 51989.910 | 263.9958 | -27.44 | 5.30 | 6.59 | 42.28 |
| KS_1741-293 | 51989.891 | 266.2042 | -29.35 | 400.83 | 111.03 | 274.40 |
| MXB_1730-33 | 51989.853 | 263.3498 | -33.39 | 33.85 | 13.05 | 333.16 |
| OPH_CLU | 51989.931 | 258.1580 | -23.39 | 481.87 | 30.80 | 3.53 |
| RXJ1709.5-263 | 51989.920 | 257.3760 | -26.66 | 2.93 | 0.98 | 3.59 |
| RXS_J172006.1 | 51989.891 | 260.0254 | -31.28 | 22.75 | 4.49 | 7.42 |
| RXS_J172525.5 | 51989.856 | 261.3563 | -32.95 | 22.18 | 9.30 | 15.89 |
| RXS_J173251.1 | 51989.846 | 263.2129 | -34.79 | 23.92 | 7.07 | 41.94 |
| RXS_J175428.3 | 51989.910 | 268.6179 | -26.34 | 0.70 | 6.16 | 34.18 |
| RXS_J180326.2 | 51989.913 | 270.8417 | -25.27 | 23.77 | 22.42 | 4641.13 |
| RXS_J180824.5 | 51989.922 | 272.1021 | -23.15 | 12.48 | 4.83 | 14.34 |
| R_1832-330 | 51989.835 | 278.9317 | -32.99 | 70.73 | 1.73 | 3.52 |
| SAXJ1747.0-2853 | 51989.900 | 266.7879 | -28.88 | 194.04 | 101.88 | 222.90 |
| SAXJ1750.8-2900 | 51989.892 | 267.6000 | -29.03 | 74.59 | 14.87 | 69.48 |
| SAXJ1753.5-2349 | 51989.923 | 268.3917 | -23.82 | 0.30 | 5.89 | 17.47 |
| SAXJ1806.5-2215 | 51989.928 | 271.6417 | -22.25 | 8.14 | 4.43 | 21.28 |
| SAXJ1808.4-3658 | 51989.829 | 272.1208 | -36.98 | -0.59 | 1.03 | 3.56 |
| SAXJ1808.4-365P | 51989.835 | 271.1200 | -35.50 | -3.47 | 3.83 | 3.81 |
| SAXJ1810.8-2609 | 51989.907 | 272.6850 | -26.15 | 3.54 | 3.85 | 9.11 |
| SGR_A | 51989.900 | 266.4000 | -29.00 | -76.86 | 130.59 | 553.44 |
| SLX_1735-269 | 51989.911 | 264.5647 | -27.00 | 100.61 | 7.86 | 16.85 |
| SLX_1737-282 | 51989.904 | 265.2360 | -28.31 | 28.43 | 16.61 | 29.93 |
| SLX_1744-300 | 51989.875 | 266.8580 | -30.04 | 138.76 | 20.22 | 135.52 |
| SLX_1746-331 | 51989.850 | 267.4608 | -33.20 | 8.02 | 7.03 | 16.54 |
| SW_J1729.9-3437 | 51989.847 | 262.5375 | -34.61 | -8.93 | 8.14 | 110.33 |
| SW_J1756.9-2508 | 51989.915 | 269.2380 | -25.11 | -11.00 | 11.02 | 558.98 |
| TERZAN_2 | 51989.881 | 261.8880 | -30.80 | 234.82 | 8.46 | 14.42 |
| WGAJ1715.3-2635 | 51989.920 | 258.8370 | -26.60 | 2.92 | 3.13 | 3.79 |
| XTE_J1710-281 | 51989.910 | 257.5500 | -28.12 | 33.08 | 1.42 | 3.75 |
| XTE_J1710-281P | 51989.905 | 258.5500 | -28.91 | -2.19 | 13.12 | 4.43 |
| XTE_J1719-291 | 51989.903 | 259.8890 | -29.06 | 4.97 | 6.12 | 6.72 |
| XTE_J1719-356 | 51989.843 | 259.9700 | -35.68 | 2.34 | 1.89 | 17.10 |
| XTE_J1720-318 | 51989.877 | 259.9961 | -31.75 | -3.86 | 9.09 | 21.31 |
| XTE_J1723-376 | 51989.834 | 260.9000 | -37.65 | 1.41 | 1.17 | 16.41 |
| XTE_J1726-283 | 51989.908 | 261.6570 | -28.30 | 1.98 | 11.50 | 8.61 |
| XTE_J1728-295 | 51989.902 | 262.1570 | -29.52 | 6.82 | 4.74 | 12.73 |
| XTE_J1734-234 | 51989.929 | 263.5280 | -23.36 | -5.62 | 6.50 | 9.03 |
| XTE_J1737-376 | 51989.832 | 264.4950 | -37.77 | -10.06 | 4.84 | 8.04 |
| XTE_J1739-285 | 51989.903 | 264.9790 | -28.48 | 11.25 | 16.97 | 44.79 |
| XTE_J1739-302 | 51989.881 | 264.7500 | -30.27 | 20.61 | 12.87 | 35.95 |
| XTE_J1743-363 | 51989.837 | 265.7415 | -36.33 | 40.37 | 6.05 | 8.50 |
| XTE_J1744-230 | 51989.929 | 266.0350 | -23.12 | 3.06 | 4.59 | 9.53 |
| XTE_J1747-274 | 51989.907 | 266.9095 | -27.44 | 58.20 | 23.38 | 464.48 |
| XTE_J1748-288 | 51989.901 | 267.0210 | -28.47 | -32.27 | 78.24 | 217.95 |
| XTE_J1751-305 | 51989.862 | 267.8062 | -30.62 | 26.70 | 20.70 | 7.57 |
| XTE_J1752-223 | 51989.929 | 268.0440 | -22.32 | -10.82 | 7.45 | 12.91 |
| XTE_J1752-280 | 51989.902 | 268.2000 | -28.00 | 23.52 | 11.03 | 26.51 |
| XTE_J1755-312 | 51989.858 | 268.7820 | -31.16 | 3.64 | 6.04 | 16.09 |
| XTE_J1756-342 | 51989.844 | 269.0228 | -34.21 | 6.50 | 4.50 | 6.15 |
| XTE_J1757-306 | 51989.860 | 269.4130 | -30.66 | 19.62 | 7.14 | 12.59 |
| XTE_J1759-220 | 51989.929 | 269.9404 | -22.03 | 54.48 | 9.09 | 20.51 |
| XTE_J1805-295 | 51989.863 | 271.4045 | -29.52 | 1.48 | 7.42 | 8.35 |
| XTE_J1807-294 | 51989.863 | 271.7441 | -29.40 | 0.66 | 7.29 | 8.26 |
| XTE_J1812-230 | 51989.921 | 273.2000 | -23.00 | 7.25 | 4.17 | 11.23 |
| XTE_J1814-338 | 51989.839 | 273.4126 | -33.77 | -1.59 | 4.02 | 3.62 |
| XTE_J1817-330 | 51989.842 | 274.4250 | -33.02 | -2.85 | 3.21 | 3.58 |
| XTE_J1818-245 | 51989.908 | 274.6050 | -24.54 | 2.50 | 3.49 | 6.82 |
| XTE_J1819-254 | 51989.907 | 274.8300 | -25.41 | 7.99 | 1.12 | 5.47 |
| XTE_J1819-254P | 51989.904 | 273.8300 | -26.41 | 20.28 | 9.96 | 6.11 |
|
Legend -------------------------- 8 - XTE J1719-356 11 - XTE J1723-376 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 |
|
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 62 - SAXJ1750.8-2900 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 |
|
Legend -------------------------- 0 - RXJ1709.5-263 1 - XTE J1710-281 5 - WGAJ1715.3-2635 6 - IGR J17191-2821 7 - XTE J1719-291 10 - RXS J172006.1 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 38 - KS 1741-293 39 - GCRT J1745-3009 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 57 - AX J1749.1-2639 58 - IGR J17497-2821 62 - SAXJ1750.8-2900 68 - XTE J1752-280 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 |
|
Legend -------------------------- 0 - RXJ1709.5-263 3 - OPH CLU 5 - WGAJ1715.3-2635 19 - GX 1+4 21 - IGR J17331-2406 37 - XTE J1744-230 53 - EXO 1745-248 76 - XTE J1759-220 85 - SAXJ1806.5-2215 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 23:18:41 2011 by Craig Markwardt