RXTE Galactic Center Observation
Observation Date: | 2001-02-20 |
Mission Day: | 2607p |
Modified Julian Day: | 51960.643 |
Mission times: | 225300321.00- 225315241.00 |
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 | 51960.742 | 265.9604 | -29.75 | 288.67 | 36.34 | 262.77 |
1E1743.1-2843 | 51960.780 | 266.5792 | -28.72 | -165.60 | 84.87 | 480.91 |
2E1746.7-3225 | 51960.668 | 267.5144 | -32.43 | 18.52 | 6.81 | 19.14 |
2S1742-294 | 51960.746 | 266.5230 | -29.52 | 237.80 | 52.98 | 495.76 |
2S1803-245 | 51960.795 | 271.7090 | -24.59 | 6.17 | 6.45 | 14.58 |
4U_1711-34 | 51960.667 | 258.5800 | -34.05 | -1.50 | 0.88 | 9.69 |
4U_1728-34 | 51960.665 | 262.9920 | -33.83 | 996.07 | 24.19 | 216.22 |
4U_1746-371 | 51960.646 | 267.5523 | -37.05 | 276.89 | 10.66 | 4.90 |
4U_1820-30 | 51960.664 | 275.9280 | -30.37 | 1754.35 | 59.24 | 3.41 |
4U_1820-30 | 51960.670 | 275.9280 | -30.37 | 2132.43 | 26.69 | 3.41 |
A1744-361 | 51960.651 | 267.0800 | -36.12 | 3.60 | 4.37 | 12.41 |
AX_J1749.1-2639 | 51960.790 | 267.3000 | -26.65 | 134.27 | 59.50 | 2811.65 |
EXO_1722-363 | 51960.652 | 261.4810 | -36.41 | -5.54 | 3.05 | 24.54 |
EXO_1742-326 | 51960.668 | 266.3690 | -32.69 | 33.85 | 7.20 | 25.52 |
EXO_1745-248 | 51960.799 | 267.0208 | -24.78 | 14.63 | 3.63 | 16.78 |
GCRT_J1745-3009 | 51960.710 | 266.2708 | -30.16 | 21.37 | 22.63 | 407.36 |
GCRT_J1746-2757 | 51960.782 | 266.5417 | -27.95 | 82.36 | 19.84 | 18.38 |
GRS_1734-292 | 51960.780 | 264.3533 | -29.18 | 49.63 | 6.41 | 20.77 |
GRS_1747-312 | 51960.672 | 267.6900 | -31.29 | 31.84 | 15.38 | -3.77 |
GRS_1758-258 | 51960.792 | 270.3025 | -25.74 | 87.27 | 61.98 | 3108.11 |
GS_1826-238 | 51960.793 | 277.3623 | -23.79 | 472.64 | 2.68 | 3.75 |
GX_1+4 | 51960.799 | 263.0090 | -24.75 | 21.53 | 28.98 | 5.81 |
GX_1+4 | 51960.803 | 263.0090 | -24.75 | 79.37 | 6.67 | 5.81 |
GX_1+4 | 51960.805 | 263.0090 | -24.75 | 69.51 | 7.96 | 5.81 |
GX_3+1 | 51960.792 | 266.9830 | -26.56 | 3944.21 | 54.88 | 119.74 |
GX_5-1 | 51960.791 | 270.2840 | -25.08 | 10818.28 | 179.28 | 69.00 |
GX_5-1 | 51960.795 | 270.2840 | -25.08 | 10899.20 | 61.99 | 69.00 |
GX_9+1 | 51960.813 | 270.3846 | -20.53 | 9121.70 | 115.43 | -166.86 |
H1743-322 | 51960.669 | 266.5700 | -32.24 | 18.26 | 8.17 | 35.60 |
IGR_J17191-2821 | 51960.789 | 259.7700 | -28.35 | 5.51 | 5.29 | 5.07 |
IGR_J17331-2406 | 51960.807 | 263.2833 | -24.11 | 0.16 | 7.69 | 24.12 |
IGR_J17375-3022 | 51960.719 | 264.3946 | -30.38 | 13.00 | 8.84 | 26.84 |
IGR_J17497-2821 | 51960.780 | 267.4041 | -28.36 | 5.69 | 29.27 | 73.24 |
IGR_J17511-3057 | 51960.675 | 267.7875 | -30.96 | -41.70 | 29.27 | 52.54 |
IGR_J17586-2129 | 51960.812 | 269.6440 | -21.39 | 2.55 | 6.38 | 54.94 |
K1724-356 | 51960.656 | 261.9133 | -35.73 | 3.80 | 8.34 | 25.34 |
KS_1731-260 | 51960.796 | 263.5539 | -26.09 | -1.48 | 3.45 | 9.30 |
KS_1732-273 | 51960.790 | 263.9958 | -27.44 | 10.46 | 10.75 | 41.39 |
KS_1741-293 | 51960.755 | 266.2042 | -29.35 | 58.58 | 89.16 | 572.56 |
MXB_1730-33 | 51960.667 | 263.3498 | -33.39 | 433.82 | 15.41 | 452.31 |
OPH_CLU | 51960.811 | 258.1580 | -23.39 | 537.60 | 19.51 | 3.36 |
RXJ1709.5-263 | 51960.799 | 257.3760 | -26.66 | 2.10 | 0.70 | 3.41 |
RXS_J172006.1 | 51960.710 | 260.0254 | -31.28 | 39.91 | 3.54 | 8.38 |
RXS_J172525.5 | 51960.670 | 261.3563 | -32.95 | 21.18 | 7.17 | 15.72 |
RXS_J173251.1 | 51960.660 | 263.2129 | -34.79 | 15.06 | 5.33 | 51.98 |
RXS_J175428.3 | 51960.790 | 268.6179 | -26.34 | -6.58 | 6.38 | 33.98 |
RXS_J180326.2 | 51960.793 | 270.8417 | -25.27 | 64.58 | 18.51 | 4558.41 |
RXS_J180824.5 | 51960.802 | 272.1021 | -23.15 | 10.89 | 3.73 | 14.16 |
R_1832-330 | 51960.649 | 278.9317 | -32.99 | 75.02 | 1.40 | 3.35 |
SAXJ1747.0-2853 | 51960.780 | 266.7879 | -28.88 | 223.83 | 78.29 | 182.47 |
SAXJ1750.8-2900 | 51960.758 | 267.6000 | -29.03 | 11.46 | 9.80 | 71.60 |
SAXJ1753.5-2349 | 51960.802 | 268.3917 | -23.82 | -0.39 | 4.37 | 17.29 |
SAXJ1802.7-2017 | 51960.813 | 270.6663 | -20.29 | -287.85 | 178.20 | 5737.63 |
SAXJ1805.5-2031 | 51960.813 | 271.3917 | -20.51 | 4.44 | 13.50 | 411.27 |
SAXJ1806.5-2215 | 51960.808 | 271.6417 | -22.25 | 5.75 | 3.37 | 21.06 |
SAXJ1808.4-365P | 51960.649 | 271.1200 | -35.50 | 1.87 | 3.41 | 3.64 |
SAXJ1810.8-2609 | 51960.786 | 272.6850 | -26.15 | 1.24 | 4.20 | 8.83 |
SGR_1806-20 | 51960.814 | 272.1642 | -20.41 | 1.63 | 6.68 | 30.04 |
SGR_A | 51960.780 | 266.4000 | -29.00 | 289.70 | 101.52 | 244.09 |
SLX_1735-269 | 51960.792 | 264.5647 | -27.00 | 98.02 | 7.94 | 18.10 |
SLX_1737-282 | 51960.782 | 265.2360 | -28.31 | 39.48 | 13.97 | 28.33 |
SLX_1744-300 | 51960.707 | 266.8580 | -30.04 | 397.40 | 19.57 | 158.30 |
SLX_1746-331 | 51960.666 | 267.4608 | -33.20 | 13.37 | 8.23 | 15.17 |
SW_J1729.9-3437 | 51960.661 | 262.5375 | -34.61 | -8.42 | 6.25 | 135.00 |
SW_J1756.9-2508 | 51960.795 | 269.2380 | -25.11 | -3.37 | 9.02 | 548.50 |
TERZAN_2 | 51960.725 | 261.8880 | -30.80 | 220.99 | 6.45 | 14.25 |
WGAJ1715.3-2635 | 51960.799 | 258.8370 | -26.60 | 4.44 | 2.27 | 3.62 |
XTE_J1710-281 | 51960.789 | 257.5500 | -28.12 | 59.72 | 1.32 | 3.58 |
XTE_J1710-281P | 51960.784 | 258.5500 | -28.91 | 3.93 | 12.19 | 4.28 |
XTE_J1719-291 | 51960.782 | 259.8890 | -29.06 | 0.45 | 5.40 | 7.04 |
XTE_J1719-356 | 51960.657 | 259.9700 | -35.68 | 3.17 | 1.45 | 16.93 |
XTE_J1720-318 | 51960.699 | 259.9961 | -31.75 | -1.56 | 7.35 | 29.65 |
XTE_J1723-376 | 51960.648 | 260.9000 | -37.65 | 1.72 | 1.00 | 16.24 |
XTE_J1726-283 | 51960.786 | 261.6570 | -28.30 | 44.79 | 23.71 | 8.44 |
XTE_J1728-295 | 51960.781 | 262.1570 | -29.52 | 7.07 | 4.28 | 12.56 |
XTE_J1734-234 | 51960.810 | 263.5280 | -23.36 | 2.34 | 3.92 | 5.01 |
XTE_J1737-376 | 51960.646 | 264.4950 | -37.77 | -1.52 | 4.60 | 7.87 |
XTE_J1739-285 | 51960.782 | 264.9790 | -28.48 | 9.14 | 14.29 | 53.36 |
XTE_J1739-302 | 51960.728 | 264.7500 | -30.27 | -0.43 | 10.06 | 40.67 |
XTE_J1743-363 | 51960.650 | 265.7415 | -36.33 | 14.26 | 4.27 | 8.33 |
XTE_J1744-230 | 51960.809 | 266.0350 | -23.12 | 7.61 | 3.66 | 9.35 |
XTE_J1747-274 | 51960.786 | 266.9095 | -27.44 | -2.78 | 17.93 | 432.40 |
XTE_J1748-288 | 51960.781 | 267.0210 | -28.47 | 3.65 | 58.95 | 152.98 |
XTE_J1751-305 | 51960.675 | 267.8062 | -30.62 | 20.00 | 17.57 | 8.51 |
XTE_J1752-223 | 51960.810 | 268.0440 | -22.32 | -5.84 | 4.92 | 12.74 |
XTE_J1752-280 | 51960.781 | 268.2000 | -28.00 | 31.37 | 9.25 | 25.05 |
XTE_J1755-312 | 51960.672 | 268.7820 | -31.16 | 13.75 | 5.22 | 19.31 |
XTE_J1756-342 | 51960.656 | 269.0228 | -34.21 | 4.66 | 3.45 | 5.98 |
XTE_J1757-306 | 51960.674 | 269.4130 | -30.66 | 39.81 | 6.24 | 14.51 |
XTE_J1759-220 | 51960.809 | 269.9404 | -22.03 | 32.30 | 6.72 | 20.72 |
XTE_J1805-295 | 51960.677 | 271.4045 | -29.52 | 18.75 | 6.57 | 1.27 |
XTE_J1807-294 | 51960.677 | 271.7441 | -29.40 | -9.56 | 6.19 | 19.76 |
XTE_J1812-230 | 51960.801 | 273.2000 | -23.00 | 11.27 | 2.99 | 11.03 |
XTE_J1814-338 | 51960.653 | 273.4126 | -33.77 | 1.71 | 3.38 | 3.45 |
XTE_J1817-330 | 51960.656 | 274.4250 | -33.02 | -2.50 | 2.48 | 3.41 |
XTE_J1818-245 | 51960.790 | 274.6050 | -24.54 | 2.83 | 2.56 | 7.80 |
XTE_J1819-254 | 51960.788 | 274.8300 | -25.41 | 22.41 | 3.77 | 5.32 |
XTE_J1819-254P | 51960.782 | 273.8300 | -26.41 | 7.39 | 9.39 | 5.92 |
Legend -------------------------- 8 - XTE J1719-356 11 - XTE J1723-376 18 - 4U 1728-34 20 - RXS J173251.1 35 - XTE J1743-363 55 - A1744-361 61 - 4U 1746-371 72 - XTE J1756-342 89 - SAXJ1808.4-365P 96 - XTE J1814-338 105 - R 1832-330 147 - K1724-356 | |
Legend -------------------------- 10 - RXS J172006.1 13 - RXS J172525.5 15 - TERZAN 2 18 - 4U 1728-34 22 - MXB 1730-33 28 - IGR J17375-3022 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 63 - GRS 1747-312 65 - XTE J1751-305 71 - XTE J1755-312 74 - XTE J1757-306 83 - XTE J1805-295 103 - 4U 1820-30 194 - 4U 1820-30 | |
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 32 - XTE J1739-285 33 - SLX 1737-282 36 - 1E1740.7-2942 38 - KS 1741-293 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 53 - EXO 1745-248 54 - XTE J1748-288 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 86 - 2S1803-245 93 - SAXJ1810.8-2609 100 - XTE J1818-245 101 - XTE J1819-254 102 - XTE J1819-254P 104 - GS 1826-238 193 - GX 5-1 | |
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 75 - IGR J17586-2129 76 - XTE J1759-220 79 - GX 9+1 82 - SAXJ1805.5-2031 85 - SAXJ1806.5-2215 87 - RXS J180824.5 90 - SGR 1806-20 95 - XTE J1812-230 150 - G11.2-0.3 191 - GX 1+4 192 - GX 1+4 193 - GX 5-1 |
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Generated automatically on Fri Mar 18 23:17:03 2011 by Craig Markwardt