RXTE Galactic Center Observation
| Observation Date: | 1999-04-22 |
| Mission Day: | 1937e |
| Modified Julian Day: | 51290.199 |
| Mission times: | 167373985.00- 167383561.00 |
| 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: It's been a while since the last update. Since then there have been four galactic bulge scans with RXTE, but there have been no momentous new transients. Here is a summary. The four scans were: D1927-09-32-56R 40135-01-20-00 Bulge scan - 12 Apr 1999 (cross) D1930-11-03-56R 40135-01-21-00 Bulge scan - 15 Apr 1999 (regular) D1934-07-45-56R 40135-01-22-00 Bulge scan - 19 Apr 1999 (cross) D1937-04-24-56R 40135-01-23-00 Bulge scan - 22 Apr 1999 (regular) No new bright sources were seen in any of the scans (darn!). In fact, a number of the sources have faded significantly. I can report the following activity: * 4U 1711-34 has faded in the past four observations to less than 10 ct/s. * XTE J1723-376 has fallen dramatically in intensity, to less than 50 ct/s (its peak was about 600 ct/s). * XTE J1819-254 is still at its brightest level yet, near 450 ct/s. * 4U 1728-34, after peaking at about 2100 ct/s, has dropped back to its quiescent level of 1000 ct/s. * 4U 1820-30 is still near its peak intensity of about 4000 ct/s. * SL 1735-27 has increased in intensity from about 100 to 180 ct/s Count rates are corrected to 5 PCU, 2-10 keV Craig
| Source | Time (MJD) | RA (2000) | DEC (2000) | Rate (ct/s/5PCU) | Error (ct/s/5PCU) | Bkg (ct/s/5PCU) |
|---|---|---|---|---|---|---|
| 1E1740.7-2942 | 51290.230 | 265.9604 | -29.75 | 241.91 | 22.66 | 270.42 |
| 1E1743.1-2843 | 51290.234 | 266.5792 | -28.72 | 219.31 | 58.66 | 153.17 |
| 2E1746.7-3225 | 51290.232 | 267.5144 | -32.43 | 7.56 | 6.24 | 17.88 |
| 2S1742-294 | 51290.232 | 266.5230 | -29.52 | 232.30 | 28.71 | 417.81 |
| 2S1803-245 | 51290.289 | 271.7090 | -24.59 | 11.55 | 5.72 | 13.35 |
| 4U_1711-34 | 51290.201 | 258.5800 | -34.05 | 25.09 | 10.18 | 9.21 |
| 4U_1728-34 | 51290.215 | 262.9920 | -33.83 | 1071.07 | 14.75 | 40.51 |
| 4U_1820-30 | 51290.293 | 275.9280 | -30.37 | 4274.54 | 75.09 | 2.93 |
| 4U_1820-30 | 51290.296 | 275.9280 | -30.37 | 4047.82 | 31.55 | 2.93 |
| 4U_1820-30 | 51290.300 | 275.9280 | -30.37 | 3922.54 | 62.88 | 2.93 |
| A1744-361 | 51290.227 | 267.0800 | -36.12 | 4.13 | 1.66 | 15.66 |
| AX_J1749.1-2639 | 51290.260 | 267.3000 | -26.65 | 11.80 | 25.52 | 1677.62 |
| EXO_1722-363 | 51290.207 | 261.4810 | -36.41 | 3.91 | 5.95 | 23.07 |
| EXO_1742-326 | 51290.229 | 266.3690 | -32.69 | 27.38 | 6.06 | 23.03 |
| EXO_1745-248 | 51290.270 | 267.0208 | -24.78 | 4.26 | 2.40 | 16.31 |
| GCRT_J1745-3009 | 51290.231 | 266.2708 | -30.16 | 11.89 | 12.51 | 391.13 |
| GCRT_J1746-2757 | 51290.237 | 266.5417 | -27.95 | 27.44 | 10.67 | 86.16 |
| GRS_1734-292 | 51290.225 | 264.3533 | -29.18 | 48.75 | 4.90 | 22.08 |
| GRS_1747-312 | 51290.245 | 267.6900 | -31.29 | 10.60 | 9.59 | 13.47 |
| GRS_1758-258 | 51290.282 | 270.3025 | -25.74 | 128.96 | 15.82 | 3878.27 |
| GS_1826-238 | 51290.307 | 277.3623 | -23.79 | 326.00 | 1.10 | 3.27 |
| GX_1+4 | 51290.220 | 263.0090 | -24.75 | 227.89 | 11.48 | 4.18 |
| GX_1+4 | 51290.226 | 263.0090 | -24.75 | 313.76 | 13.02 | 4.18 |
| GX_3+1 | 51290.235 | 266.9830 | -26.56 | 2573.00 | 34.24 | 35.27 |
| GX_3+1 | 51290.270 | 266.9830 | -26.56 | 2332.51 | 46.68 | 35.27 |
| GX_5-1 | 51290.278 | 270.2840 | -25.08 | 12034.11 | 141.45 | 53.32 |
| GX_5-1 | 51290.283 | 270.2840 | -25.08 | 13383.25 | 55.83 | 53.32 |
| GX_5-1 | 51290.285 | 270.2840 | -25.08 | 13692.17 | 89.13 | 53.32 |
| H1743-322 | 51290.230 | 266.5700 | -32.24 | 14.59 | 4.56 | 30.58 |
| IGR_J17191-2821 | 51290.207 | 259.7700 | -28.35 | 4.54 | 2.49 | 4.80 |
| IGR_J17331-2406 | 51290.227 | 263.2833 | -24.11 | -4.24 | 2.75 | 87.91 |
| IGR_J17375-3022 | 51290.223 | 264.3946 | -30.38 | 7.60 | 6.46 | 29.61 |
| IGR_J17497-2821 | 51290.253 | 267.4041 | -28.36 | -13.41 | 15.81 | 101.38 |
| IGR_J17511-3057 | 51290.247 | 267.7875 | -30.96 | -10.06 | 14.35 | 31.60 |
| IGR_J17586-2129 | 51290.284 | 269.6440 | -21.39 | 6.48 | 3.16 | 36.83 |
| K1724-356 | 51290.210 | 261.9133 | -35.73 | -1.52 | 2.79 | 26.61 |
| KS_1731-260 | 51290.225 | 263.5539 | -26.09 | 428.35 | 8.76 | 8.83 |
| KS_1732-273 | 51290.225 | 263.9958 | -27.44 | 12.51 | 6.41 | 64.17 |
| KS_1741-293 | 51290.232 | 266.2042 | -29.35 | 157.43 | 53.25 | 411.26 |
| MXB_1730-33 | 51290.217 | 263.3498 | -33.39 | 14.00 | 8.26 | 483.14 |
| NGC_6440 | 51290.277 | 267.2195 | -20.36 | 26.12 | 16.53 | 6.33 |
| OPH_CLU | 51290.206 | 258.1580 | -23.39 | 286.30 | 2.30 | 2.88 |
| RXJ1709.5-263 | 51290.199 | 257.3760 | -26.66 | 1.08 | 0.58 | 2.94 |
| RXS_J172006.1 | 51290.206 | 260.0254 | -31.28 | 21.18 | 4.44 | 7.00 |
| RXS_J172525.5 | 51290.210 | 261.3563 | -32.95 | 16.93 | 2.68 | 15.24 |
| RXS_J173251.1 | 51290.215 | 263.2129 | -34.79 | 17.54 | 4.29 | 53.84 |
| RXS_J175428.3 | 51290.274 | 268.6179 | -26.34 | 4.67 | 5.65 | 33.45 |
| RXS_J180824.5 | 51290.291 | 272.1021 | -23.15 | 9.07 | 2.12 | 13.48 |
| R_1832-330 | 51290.301 | 278.9317 | -32.99 | 82.82 | 4.99 | 2.87 |
| SAXJ1747.0-2853 | 51290.238 | 266.7879 | -28.88 | 33.40 | 32.09 | 324.15 |
| SAXJ1750.8-2900 | 51290.252 | 267.6000 | -29.03 | 36.77 | 6.30 | 43.46 |
| SAXJ1753.5-2349 | 51290.276 | 268.3917 | -23.82 | 3.40 | 2.63 | 16.82 |
| SAXJ1806.5-2215 | 51290.291 | 271.6417 | -22.25 | 1.59 | 0.76 | 20.53 |
| SAXJ1808.4-3658 | 51290.274 | 272.1208 | -36.98 | -1.42 | 0.51 | 2.91 |
| SAXJ1808.4-365P | 51290.273 | 271.1200 | -35.50 | -0.56 | 2.13 | 3.16 |
| SAXJ1810.8-2609 | 51290.290 | 272.6850 | -26.15 | 4.30 | 2.70 | 8.32 |
| SGR_1806-20 | 51290.298 | 272.1642 | -20.41 | 19.16 | 6.51 | 25.73 |
| SGR_A | 51290.232 | 266.4000 | -29.00 | -5.37 | 73.73 | 437.62 |
| SLX_1735-269 | 51290.227 | 264.5647 | -27.00 | 182.12 | 6.23 | 18.24 |
| SLX_1737-282 | 51290.229 | 265.2360 | -28.31 | 27.89 | 13.75 | 43.47 |
| SLX_1744-300 | 51290.233 | 266.8580 | -30.04 | 383.43 | 14.86 | 152.47 |
| SLX_1746-331 | 51290.232 | 267.4608 | -33.20 | 12.78 | 3.67 | 12.66 |
| SW_J1729.9-3437 | 51290.212 | 262.5375 | -34.61 | -9.23 | 5.68 | 142.78 |
| SW_J1756.9-2508 | 51290.277 | 269.2380 | -25.11 | -7.29 | 4.29 | 679.59 |
| TERZAN_2 | 51290.214 | 261.8880 | -30.80 | 292.10 | 6.50 | 13.77 |
| WGAJ1715.3-2635 | 51290.206 | 258.8370 | -26.60 | 4.72 | 2.08 | 3.14 |
| XTE_J1710-281 | 51290.200 | 257.5500 | -28.12 | 23.97 | 3.46 | 3.10 |
| XTE_J1710-281P | 51290.202 | 258.5500 | -28.91 | -1.72 | 3.81 | 3.77 |
| XTE_J1719-291 | 51290.207 | 259.8890 | -29.06 | 1.36 | 2.55 | 6.34 |
| XTE_J1719-356 | 51290.202 | 259.9700 | -35.68 | 2.36 | 2.29 | 16.45 |
| XTE_J1720-318 | 51290.205 | 259.9961 | -31.75 | -3.39 | 4.26 | 19.88 |
| XTE_J1723-376 | 51290.202 | 260.9000 | -37.65 | 38.75 | 2.56 | 15.76 |
| XTE_J1726-283 | 51290.215 | 261.6570 | -28.30 | 0.15 | 2.41 | 7.96 |
| XTE_J1728-295 | 51290.215 | 262.1570 | -29.52 | 6.53 | 3.04 | 12.08 |
| XTE_J1734-234 | 51290.227 | 263.5280 | -23.36 | 2.00 | 0.85 | 3.83 |
| XTE_J1739-285 | 51290.228 | 264.9790 | -28.48 | 30.92 | 13.15 | 44.48 |
| XTE_J1739-302 | 51290.225 | 264.7500 | -30.27 | 4.45 | 6.62 | 36.55 |
| XTE_J1743-363 | 51290.223 | 265.7415 | -36.33 | 10.35 | 0.82 | 7.86 |
| XTE_J1744-230 | 51290.251 | 266.0350 | -23.12 | 35.62 | 5.68 | 8.87 |
| XTE_J1747-274 | 51290.246 | 266.9095 | -27.44 | 23.21 | 12.12 | 255.35 |
| XTE_J1748-288 | 51290.244 | 267.0210 | -28.47 | 19.42 | 36.57 | 172.11 |
| XTE_J1751-305 | 51290.248 | 267.8062 | -30.62 | 10.14 | 9.75 | 22.59 |
| XTE_J1752-223 | 51290.277 | 268.0440 | -22.32 | -1.69 | 1.80 | 12.26 |
| XTE_J1752-280 | 51290.270 | 268.2000 | -28.00 | 38.83 | 4.69 | 21.55 |
| XTE_J1755-312 | 51290.259 | 268.7820 | -31.16 | 10.90 | 3.71 | 19.72 |
| XTE_J1756-342 | 51290.252 | 269.0228 | -34.21 | 5.78 | 1.91 | 5.50 |
| XTE_J1757-306 | 51290.272 | 269.4130 | -30.66 | 36.68 | 3.51 | 13.44 |
| XTE_J1759-220 | 51290.284 | 269.9404 | -22.03 | -0.60 | 2.21 | 21.22 |
| XTE_J1805-295 | 51290.280 | 271.4045 | -29.52 | 10.64 | 5.54 | 4.91 |
| XTE_J1807-294 | 51290.282 | 271.7441 | -29.40 | -3.46 | 5.70 | 13.80 |
| XTE_J1810-189 | 51290.298 | 272.5863 | -19.07 | 46.52 | 31.29 | 35.24 |
| XTE_J1810-197 | 51290.298 | 272.4630 | -19.73 | -13.77 | 6.88 | 53.23 |
| XTE_J1812-230 | 51290.297 | 273.2000 | -23.00 | 5.88 | 2.93 | 10.53 |
| XTE_J1814-338 | 51290.282 | 273.4126 | -33.77 | 2.26 | 3.04 | 2.97 |
| XTE_J1817-330 | 51290.287 | 274.4250 | -33.02 | -1.76 | 1.98 | 2.94 |
| XTE_J1818-245 | 51290.298 | 274.6050 | -24.54 | 4.58 | 4.35 | 42.66 |
| XTE_J1819-254 | 51290.298 | 274.8300 | -25.41 | 465.78 | 9.03 | 4.99 |
| XTE_J1819-254P | 51290.294 | 273.8300 | -26.41 | 3.54 | 3.94 | 5.46 |
|
Legend -------------------------- 0 - RXJ1709.5-263 1 - XTE J1710-281 3 - OPH CLU 4 - 4U 1711-34 5 - WGAJ1715.3-2635 6 - IGR J17191-2821 7 - XTE J1719-291 8 - XTE J1719-356 10 - RXS J172006.1 11 - XTE J1723-376 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 |
|
Legend -------------------------- 19 - GX 1+4 24 - XTE J1734-234 25 - KS 1731-260 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 35 - XTE J1743-363 36 - 1E1740.7-2942 37 - XTE J1744-230 38 - KS 1741-293 39 - GCRT J1745-3009 40 - EXO 1742-326 42 - 2S1742-294 43 - GCRT J1746-2757 44 - 1E1743.1-2843 45 - H1743-322 46 - SAXJ1747.0-2853 48 - SLX 1744-300 50 - XTE J1747-274 51 - GX 3+1 54 - XTE J1748-288 55 - A1744-361 57 - AX J1749.1-2639 59 - SLX 1746-331 60 - 2E1746.7-3225 62 - SAXJ1750.8-2900 63 - GRS 1747-312 65 - XTE J1751-305 71 - XTE J1755-312 72 - XTE J1756-342 191 - GX 1+4 |
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Legend -------------------------- 37 - XTE J1744-230 50 - XTE J1747-274 53 - EXO 1745-248 54 - XTE J1748-288 56 - NGC 6440 57 - AX J1749.1-2639 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 72 - XTE J1756-342 74 - XTE J1757-306 75 - IGR J17586-2129 77 - GX 5-1 78 - GRS 1758-258 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 22:53:56 2011 by Craig Markwardt