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Databases NED Simbad GCN circulars archive GRB data table Software & Tools Swift Software (HEASoft) Xanadu WebPIMMS Institutional Swift Sites GSFC PSU OAB SSDC MSSL University of Leicester
Swift Trigger: 769567;
Presumed name: GRB 170827A
| BAT | 18h 24m 43.20s, -40° 13′ 12.0″ |
|---|---|
| position: | (276.180, -40.220 ± 180″) |
| XRT | 18h 24m 36.19s, -40° 12′ 05.8″ |
| position: | (276.1508, -40.2016 ± 4.9″) |
| UVOT | No position available. |
| Galactic NHI: | 8.75×100 cm-2 |
| Galactic E(B-V): | 0.102 mag |
| Best RA: | 18h 24m 36.19s | = 276.1508 d |
|---|---|---|
| Best Dec: | -40° 12′ 05.8″ | = -40.2016 d |
| Gal Lat: | -12.41 | |
| Gal Long: | 353.89 | |
| Sun angle: | 119.56°, -8.0 hr East of Sun | |
1Sper #0 auto processing.
Galaxies within 3.33 of XRT position
| RA* | Dec* | Redshift | Catalogue | Query | ||
|---|---|---|---|---|---|---|
| 17.5 | 276.1568 | -40.2000 | B=19.7, R2=18.4 | SSS |  | |
| 19.5 | 276.1574 | -40.1996 | B2=17.6, R1=17.8, R2=17.5 | USNO-B1 | | |
| 20.0 | 276.1575 | -40.1995 | B=19.6, R2=18.4, i=18.1 | SSS | | |
| 20.8 | 276.1483 | -40.1962 | B2=14.6, I=12.9, R1=13.9, R2=13.7 | USNO-B1 | | |
| 22.8 | 276.1490 | -40.1954 | B=18.9 | SSS | | |
| 25.6 | 276.1544 | -40.1951 | B=19.9, R2=18.0, i=17.4 | SSS | | |
| 25.8 | 276.1546 | -40.1950 | R1=17.6, R2=18.7 | USNO-B1 | | |
| 28.9 | 276.1504 | -40.1936 | B=21.0, R2=19.3, i=17.7 | SSS | | |
| 29.7 | 276.1525 | -40.1935 | B=19.9, R2=19.6 | SSS | | |
| 31.8 | 276.1449 | -40.2092 | I=15.8, R1=16.8, R2=17.8 | USNO-B1 | | |
| 36.3 | 276.1578 | -40.2101 | B2=16.5, R1=16.5 | USNO-B1 | | |
| 36.6 | 276.1636 | -40.2044 | B=19.6, R2=18.8, i=17.9 | SSS | | |
| 37.5 | 276.1442 | -40.1925 | B=20.2, R2=18.7, i=18.0 | SSS | | |
| 39.0 | 276.1643 | -40.1982 | B=19.5, i=17.8 | SSS | | |
| 39.1 | 276.1643 | -40.1983 | R1=16.6, R2=16.8 | USNO-B1 | | |
| 44.4 | 276.1362 | -40.1963 | B=19.1, R2=14.9, i=14.2 | SSS | | |
| 44.9 | 276.1362 | -40.1961 | B2=17.3, R1=16.4, R2=17.0 | USNO-B1 | | |
| 46.1 | 276.1658 | -40.2073 | B=19.4, R2=18.3, i=17.3 | SSS | | |
| 47.8 | 276.1335 | -40.2027 | R1=17.7, R2=19.4 | USNO-B1 | | |
| 54.2 | 276.1379 | -40.1902 | I=15.8, R1=15.8 | USNO-B1 | | |
| 56.8 | 276.1371 | -40.1898 | B2=17.2, I=16.5, R1=16.5 | USNO-B1 | | |
| 65.1 | 276.1537 | -40.2196 | I=15.3, R1=15.2, R2=15.6 | USNO-B1 | | |
| 66.2 | 276.1312 | -40.2123 | B2=17.5, R1=16.8, R2=17.8 | USNO-B1 | | |
| 72.3 | 276.1344 | -40.1859 | B2=17.9, R2=21.7 | USNO-B1 | | |
| 73.5 | 276.1690 | -40.2165 | B=20.2, R2=18.9 | SSS | | |
| 74.3 | 276.1313 | -40.2159 | B2=18.2, R2=18.3 | USNO-B1 | | |
| 74.4 | 276.1359 | -40.1843 | B=20.9, R2=19.3, i=18.0 | SSS | | |
| 75.5 | 276.1689 | -40.2174 | B=20.9, R2=18.9 | SSS | | |
| 77.8 | 276.1403 | -40.2217 | B2=16.7, R1=16.0, R2=16.5 | USNO-B1 | | |
| 79.5 | 276.1474 | -40.1797 | B=20.7, R2=19.8 | SSS | | |
| 79.6 | 276.1692 | -40.1845 | B2=17.3, R1=17.3, R2=18.6 | USNO-B1 | | |
| 80.1 | 276.1761 | -40.2127 | B=21.9 | SSS | | |
| 81.8 | 276.1806 | -40.2014 | B2=18.2, R2=18.4 | USNO-B1 | | |
| 82.0 | 276.1606 | -40.1801 | B2=16.9, I=15.7, R1=15.7, R2=16.4 | USNO-B1 | | |
| 83.1 | 276.1553 | -40.2244 | B2=18.6, R2=21.9 | USNO-B1 | | |
| 84.1 | 276.1595 | -40.1792 | B=20.8 | SSS | | |
| 85.5 | 276.1489 | -40.1779 | B=19.7, R2=18.6, i=17.6 | SSS | | |
| 87.1 | 276.1441 | -40.1779 | h=13.7, j=14.5, k=13.5 | 2MASS | | |
| 87.4 | 276.1442 | -40.1778 | NED | | ||
| 88.3 | 276.1428 | -40.1779 | B2=17.6, R1=17.1, R2=16.1 | USNO-B1 | | |
| 89.2 | 276.1822 | -40.2078 | B2=17.6, R1=16.9, R2=17.3 | USNO-B1 | | |
| 89.4 | 276.1423 | -40.1776 | B=19.2, R2=18.6 | SSS | | |
| 90.8 | 276.1284 | -40.1830 | B=21.0, R2=19.1, i=17.8 | SSS | | |
| 94.1 | 276.1330 | -40.2239 | B2=17.6, R2=19.1 | USNO-B1 | | |
| 94.6 | 276.1231 | -40.2172 | B2=17.6, R1=17.4, R2=19.0 | USNO-B1 | | |
| 95.1 | 276.1505 | -40.1752 | B=20.3, R2=19.5 | SSS | | |
| 95.4 | 276.1230 | -40.1858 | B2=16.9, I=16.6, R1=16.2, R2=17.1 | USNO-B1 | | |
| 95.5 | 276.1782 | -40.2179 | B=20.9, R2=19.9 | SSS | | |
| 95.6 | 276.1286 | -40.1812 | B=20.9, R2=19.9, i=18.3 | SSS | | |
| 98.0 | 276.1809 | -40.2162 | R1=17.6, R2=20.9 | USNO-B1 | | |
| 98.3 | 276.1864 | -40.2037 | R1=17.5, R2=19.5 | USNO-B1 | | |
| 98.4 | 276.1813 | -40.2159 | B=18.7, R2=17.8, i=17.2 | SSS | | |
| 100.1 | 276.1526 | -40.1738 | B=19.9, R2=18.9 | SSS | | |
| 102.3 | 276.1798 | -40.1837 | R1=17.8, R2=20.4 | USNO-B1 | | |
| 102.5 | 276.1869 | -40.2086 | B2=18.3, R2=22.0 | USNO-B1 | | |
| 104.6 | 276.1229 | -40.1819 | B=20.0, R2=19.3 | SSS | | |
| 104.7 | 276.1247 | -40.2228 | B2=18.7, R2=21.4 | USNO-B1 | | |
| 104.9 | 276.1659 | -40.1749 | B2=18.4, R2=20.9 | USNO-B1 | | |
| 105.3 | 276.1152 | -40.1909 | B=18.3, R2=17.5, i=17.1 | SSS | | |
| 107.7 | 276.1237 | -40.1800 | B2=18.1, R2=19.6 | USNO-B1 | | |
| 108.2 | 276.1237 | -40.1798 | B=19.6, R2=18.9, i=18.0 | SSS | | |
| 108.2 | 276.1579 | -40.1720 | I=17.4, R1=17.9, R2=19.9 | USNO-B1 | | |
| 109.8 | 276.1129 | -40.1920 | I=16.4, R1=15.8 | USNO-B1 | | |
| 110.1 | 276.1561 | -40.1713 | B2=18.4, R1=18.1, R2=18.2 | USNO-B1 | | |
| 110.9 | 276.1110 | -40.1964 | I=16.5, R1=17.0, R2=22.4 | USNO-B1 | | |
| 114.6 | 276.1493 | -40.1698 | B2=16.9, I=15.6, R1=15.7, R2=15.9 | USNO-B1 | | |
| 116.2 | 276.1783 | -40.2261 | I=17.1, R1=18.1, R2=18.7 | USNO-B1 | | |
| 116.2 | 276.1109 | -40.2123 | B2=15.0, I=13.0, R1=13.7, R2=13.8 | USNO-B1 | | |
| 117.0 | 276.1329 | -40.1721 | B2=17.2, R1=16.4, R2=16.8 | USNO-B1 | | |
| 117.9 | 276.1218 | -40.2257 | B2=17.7, R1=18.2, R2=20.3 | USNO-B1 | | |
| 118.7 | 276.1749 | -40.1743 | R1=17.2, R2=18.6 | USNO-B1 | | |
| 119.7 | 276.1165 | -40.1812 | B=20.5, R2=19.2 | SSS | | |
| 120.1 | 276.1585 | -40.2345 | B2=17.1, I=15.8, R1=16.1, R2=16.9 | USNO-B1 | | |
| 121.4 | 276.1475 | -40.2352 | R1=17.8, R2=19.0 | USNO-B1 | | |
| 122.1 | 276.1069 | -40.1966 | B2=17.9, R2=19.6 | USNO-B1 | | |
| 122.2 | 276.1706 | -40.2320 | B2=14.6, I=11.9, R1=13.0, R2=13.0 | USNO-B1 | | |
| 126.4 | 276.1947 | -40.2121 | B2=16.4, I=14.6, R1=15.1, R2=15.7 | USNO-B1 | | |
| 126.7 | 276.1101 | -40.1851 | B=20.1, R2=19.3 | SSS | | |
| 127.5 | 276.1417 | -40.2363 | B2=14.3, I=12.8, R1=13.3, R2=13.4 | USNO-B1 | | |
| 129.3 | 276.1931 | -40.1860 | B2=16.2, I=13.8, R1=14.6, R2=14.6 | USNO-B1 | | |
| 129.4 | 276.1679 | -40.1681 | B2=17.6, R1=17.1, R2=17.5 | USNO-B1 | | |
| 130.0 | 276.1109 | -40.2210 | R1=17.7, R2=19.5 | USNO-B1 | | |
| 131.5 | 276.1975 | -40.1936 | B2=17.6, I=16.9, R1=16.7, R2=18.3 | USNO-B1 | | |
| 131.8 | 276.1423 | -40.2376 | I=15.6, R1=15.4 | USNO-B1 | | |
| 133.1 | 276.1714 | -40.2351 | I=14.8, R1=16.1 | USNO-B1 | | |
| 133.1 | 276.1593 | -40.1652 | B2=16.8, I=15.8, R1=15.7, R2=16.4 | USNO-B1 | | |
| 133.2 | 276.1918 | -40.1819 | I=14.0, R1=15.6 | USNO-B1 | | |
| 137.3 | 276.1086 | -40.2220 | B2=18.0, R2=18.5 | USNO-B1 | | |
| 137.8 | 276.1884 | -40.2269 | B2=16.3, I=14.2, R1=14.9, R2=15.5 | USNO-B1 | | |
| 139.5 | 276.1521 | -40.2403 | B2=16.3, I=14.9, R1=15.2, R2=14.9 | USNO-B1 | | |
| 140.4 | 276.1813 | -40.2328 | B2=17.7, I=17.2, R1=17.0, R2=18.1 | USNO-B1 | | |
| 141.1 | 276.1005 | -40.1938 | B2=18.7, I=17.1, R2=21.4 | USNO-B1 | | |
| 141.3 | 276.1272 | -40.1667 | R1=17.0, R2=17.6 | USNO-B1 | | |
| 141.7 | 276.1029 | -40.2162 | B2=17.8, I=17.2, R1=17.0, R2=18.1 | USNO-B1 | | |
| 142.3 | 276.1741 | -40.2369 | B2=17.7, I=16.9, R1=17.8 | USNO-B1 | | |
| 143.5 | 276.2013 | -40.2117 | I=16.1, R1=16.6, R2=17.6 | USNO-B1 | | |
| 143.6 | 276.1634 | -40.2403 | R1=17.5, R2=18.1 | USNO-B1 | | |
| 143.8 | 276.1044 | -40.1832 | B=19.8 | SSS | | |
| 145.9 | 276.1707 | -40.1640 | R1=18.2, R2=20.8 | USNO-B1 | | |
| 147.0 | 276.1135 | -40.1723 | B=20.2, R2=19.0, i=18.0 | SSS | | |
| 147.4 | 276.1340 | -40.1627 | R1=17.9, R2=17.1 | USNO-B1 | | |
| 150.0 | 276.1836 | -40.2349 | B2=17.0, I=16.9, R1=16.3, R2=17.4 | USNO-B1 | | |
| 150.5 | 276.2022 | -40.2160 | B2=17.5, I=16.4, R1=16.6, R2=17.4 | USNO-B1 | | |
| 151.5 | 276.1504 | -40.1595 | B=19.4, R2=19.3 | SSS | | |
| 151.7 | 276.2059 | -40.2024 | B2=16.6, I=14.8, R1=15.2, R2=15.7 | USNO-B1 | | |
| 152.3 | 276.0955 | -40.2039 | R1=16.1, R2=15.8 | USNO-B1 | | |
| 154.1 | 276.0954 | -40.1952 | B2=18.0, R1=18.1, R2=19.2 | USNO-B1 | | |
| 154.4 | 276.1573 | -40.2442 | B2=16.3, I=15.2, R1=15.3, R2=15.8 | USNO-B1 | | |
| 155.2 | 276.1717 | -40.2416 | B2=18.5, R1=17.4, R2=18.0 | USNO-B1 | | |
| 155.6 | 276.1392 | -40.1593 | B2=18.1, R1=17.6, R2=18.5 | USNO-B1 | | |
| 156.3 | 276.1062 | -40.2285 | B2=17.4, R1=17.0, R2=18.0 | USNO-B1 | | |
| 156.9 | 276.2070 | -40.2092 | B2=14.5, I=11.9, R1=12.9, R2=13.0 | USNO-B1 | | |
| 157.3 | 276.1081 | -40.1725 | B2=15.6, I=13.5, R1=14.0, R2=13.6 | USNO-B1 | | |
| 159.9 | 276.2004 | -40.2248 | R1=17.8, R2=18.8 | USNO-B1 | | |
| 160.0 | 276.1099 | -40.1700 | B=20.2, R2=18.7, i=18.1 | SSS | | |
| 160.0 | 276.1976 | -40.1752 | B2=17.1, I=16.1, R1=16.4, R2=16.9 | USNO-B1 | | |
| 160.5 | 276.2019 | -40.2231 | B2=18.1, R2=20.2 | USNO-B1 | | |
| 160.6 | 276.1022 | -40.1769 | B=19.2, R2=18.3, i=17.3 | SSS | | |
| 161.0 | 276.1707 | -40.1595 | B2=16.7, I=14.6, R1=14.9, R2=15.1 | USNO-B1 | | |
| 161.1 | 276.0926 | -40.1967 | B2=18.3, R2=19.4 | USNO-B1 | | |
| 161.3 | 276.1681 | -40.1588 | B2=18.0, I=17.2, R1=17.4, R2=17.8 | USNO-B1 | | |
| 162.4 | 276.1467 | -40.1566 | B2=14.8, I=12.0, R1=12.8, R2=13.2 | USNO-B1 | | |
| 162.4 | 276.1930 | -40.2332 | R1=18.5, R2=20.8 | USNO-B1 | | |
| 163.5 | 276.2052 | -40.2200 | B2=16.0, I=14.2, R1=14.8, R2=14.9 | USNO-B1 | | |
| 163.6 | 276.1179 | -40.1637 | B2=17.7, R2=19.0 | USNO-B1 | | |
| 164.1 | 276.1985 | -40.2290 | B2=16.4, I=15.4, R1=15.4, R2=16.1 | USNO-B1 | | |
| 165.0 | 276.1463 | -40.1559 | B=18.7 | SSS | | |
| 165.1 | 276.2105 | -40.1966 | B2=17.7, R1=17.9, R2=18.8 | USNO-B1 | | |
| 165.5 | 276.2077 | -40.1867 | B2=18.9, R2=17.8 | USNO-B1 | | |
| 166.4 | 276.1088 | -40.1683 | B=20.7, R2=19.5 | SSS | | |
| 167.0 | 276.1466 | -40.1553 | B=19.6 | SSS | | |
| 169.3 | 276.2083 | -40.1848 | B2=18.8, I=16.1, R2=17.7 | USNO-B1 | | |
| 169.5 | 276.1612 | -40.1552 | B=21.3 | SSS | | |
| 169.8 | 276.1655 | -40.2474 | B2=18.8, R2=21.4 | USNO-B1 | | |
| 171.1 | 276.1800 | -40.2436 | B2=16.2, I=15.5, R1=15.5, R2=15.8 | USNO-B1 | | |
| 173.5 | 276.1555 | -40.1535 | B=20.8, R2=18.3 | SSS | | |
| 174.2 | 276.1545 | -40.2499 | B2=18.3, R1=17.8, R2=19.8 | USNO-B1 | | |
| 175.7 | 276.1022 | -40.1699 | B2=17.9, R1=17.2, R2=18.9 | USNO-B1 | | |
| 175.7 | 276.2043 | -40.2283 | B2=17.5, I=17.1, R1=16.7, R2=17.7 | USNO-B1 | | |
| 176.1 | 276.1559 | -40.1528 | B=19.9, R2=18.3, i=18.2 | SSS | | |
| 176.8 | 276.1215 | -40.1579 | B2=18.0, R2=17.4 | USNO-B1 | | |
| 176.8 | 276.1147 | -40.1609 | I=17.0, R2=18.4 | USNO-B1 | | |
| 177.0 | 276.2137 | -40.1913 | B2=17.3, I=17.1, R1=16.8, R2=18.2 | USNO-B1 | | |
| 178.5 | 276.1066 | -40.1653 | I=17.0, R2=18.2 | USNO-B1 | | |
| 178.8 | 276.1448 | -40.1521 | R1=17.8, R2=17.9 | USNO-B1 | | |
| 179.1 | 276.2154 | -40.1954 | B2=16.5, I=15.0, R1=15.5 | USNO-B1 | | |
| 180.8 | 276.2071 | -40.1757 | B2=17.2, I=16.3, R1=16.4, R2=17.0 | USNO-B1 | | |
| 181.9 | 276.0923 | -40.2252 | B2=17.9, R1=17.4, R2=17.3 | USNO-B1 | | |
| 183.1 | 276.2152 | -40.2145 | R1=17.7, R2=19.2 | USNO-B1 | | |
| 183.4 | 276.2170 | -40.1956 | B2=16.3, I=14.0, R1=14.4, R2=14.4 | USNO-B1 | | |
| 183.6 | 276.0852 | -40.2113 | B2=17.0, I=16.3, R1=15.9, R2=16.2 | USNO-B1 | | |
| 184.0 | 276.2173 | -40.2072 | B2=16.0, I=14.1, R1=14.8, R2=15.3 | USNO-B1 | | |
| 184.2 | 276.2173 | -40.2082 | I=15.9, R1=16.2 | USNO-B1 | | |
| 184.3 | 276.1358 | -40.1517 | R1=17.8, R2=19.8 | USNO-B1 | | |
| 184.3 | 276.1018 | -40.1667 | B2=18.4, R2=19.0 | USNO-B1 | | |
| 184.7 | 276.1015 | -40.1667 | B=19.8, R2=18.5, i=17.9 | SSS | | |
| 186.2 | 276.2156 | -40.2166 | I=17.4, R2=19.9 | USNO-B1 | | |
| 186.7 | 276.2124 | -40.2234 | B2=17.2, I=16.7, R1=16.4, R2=17.3 | USNO-B1 | | |
| 188.9 | 276.1320 | -40.2521 | B2=17.9, R1=17.8, R2=18.7 | USNO-B1 | | |
| 189.3 | 276.0915 | -40.2284 | B2=18.0, R2=19.5 | USNO-B1 | | |
| 190.3 | 276.1677 | -40.1503 | B=22.1 | SSS | | |
| 190.9 | 276.2197 | -40.1952 | B2=15.8, I=15.9, R1=16.1 | USNO-B1 | | |
| 191.1 | 276.0831 | -40.2137 | B=20.7, R2=18.9 | SSS | | |
| 191.1 | 276.1932 | -40.2437 | B=19.5, R2=17.8, i=16.9 | SSS | | |
| 192.0 | 276.1648 | -40.2538 | B2=17.7, R1=17.5, R2=19.4 | USNO-B1 | | |
| 192.1 | 276.1070 | -40.1600 | B2=16.7, I=16.6, R1=16.0, R2=16.8 | USNO-B1 | | |
| 193.5 | 276.1112 | -40.1572 | B2=17.4, R2=17.2 | USNO-B1 | | |
| 193.9 | 276.2163 | -40.2216 | B2=17.3, R1=17.0, R2=17.8 | USNO-B1 | | |
| 193.9 | 276.1513 | -40.2555 | R1=17.7, R2=19.6 | USNO-B1 | | |
| 194.2 | 276.1760 | -40.1512 | B2=18.6, R2=21.1 | USNO-B1 | | |
| 194.9 | 276.1038 | -40.1611 | R1=17.7, R2=19.7 | USNO-B1 | | |
| 194.9 | 276.2179 | -40.1841 | B2=16.0, R2=16.7 | USNO-B1 | | |
| 195.1 | 276.1252 | -40.2522 | R1=17.4, R2=18.6 | USNO-B1 | | |
| 195.3 | 276.0944 | -40.2346 | B2=17.4, I=16.7, R2=16.8 | USNO-B1 | | |
| 195.5 | 276.0888 | -40.2281 | B2=18.0, R2=19.6 | USNO-B1 | | |
| 195.6 | 276.1368 | -40.1483 | B2=18.6, R2=18.3 | USNO-B1 | | |
| 195.7 | 276.0930 | -40.1699 | R1=18.3, R2=20.0 | USNO-B1 | | |
| 196.5 | 276.1194 | -40.2506 | I=16.6, R1=16.3, R2=16.6 | USNO-B1 | | |
| 196.6 | 276.0824 | -40.1857 | B2=17.2, R1=16.9, R2=17.9 | USNO-B1 | | |
| 196.7 | 276.1626 | -40.1477 | B=19.4, R2=18.5, i=18.3 | SSS | | |
| 197.1 | 276.2184 | -40.1834 | B2=16.5, I=14.8, R1=15.0, R2=15.2 | USNO-B1 | | |
| 198.0 | 276.2169 | -40.1797 | B2=16.8, I=15.8, R1=15.7, R2=16.6 | USNO-B1 | | |
| 198.2 | 276.0895 | -40.1727 | I=17.4, R1=17.2, R2=18.5 | USNO-B1 | | |
| 199.1 | 276.1215 | -40.2522 | B2=18.6, R2=21.1 | USNO-B1 | |
Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.
* RA/Dec in equinox J2000
Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example