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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: 773509;
Presumed name: GRB 170921A
| BAT | 01h 47m 23.76s, +30° 52′ 26.4″ |
|---|---|
| position: | (26.849, 30.874 ± 180″) |
| XRT | 01h 47m 23.69s, +30° 54′ 23.4″ |
| position: | (26.8487, 30.9065 ± 2.1″) |
| UVOT | No position available. |
| Galactic NHI: | 4.65×100 cm-2 |
| Galactic E(B-V): | 0.051 mag |
| Best RA: | 01h 47m 23.69s | = 26.8487 d |
|---|---|---|
| Best Dec: | +30° 54′ 23.4″ | = 30.9065 d |
| Gal Lat: | -30.45 | |
| Gal Long: | 136.85 | |
| Sun angle: | 138.71°, 10.1 hr West | |
1Sper #5 auto processing.
Galaxies within 3.33 of XRT position
| RA* | Dec* | Redshift | Catalogue | Query | ||
|---|---|---|---|---|---|---|
| 21.6 | 26.8526 | 30.9015 | B=22.0, R=20.0 | APM-N |  | |
| 27.9 | 26.8411 | 30.9106 | B=22.0, R=18.3 | APM-N | | |
| 62.2 | 26.8425 | 30.9229 | B2=20.9, I=18.3, R2=20.3 | USNO-B1 | | |
| 65.3 | 26.8415 | 30.9236 | B=20.9, R=19.1 | APM-N | | |
| 69.1 | 26.8280 | 30.8991 | B1=20.7, R2=20.1 | USNO-B1 | | |
| 90.1 | 26.8208 | 30.8989 | NED | | ||
| 91.6 | 26.8307 | 30.9268 | B=22.0, R=19.0 | APM-N | | |
| 96.6 | 26.8560 | 30.9326 | B=21.8, R=20.0 | APM-N | | |
| 98.3 | 26.8259 | 30.9256 | B=21.8, R=20.0 | APM-N | | |
| 106.2 | 26.8296 | 30.9311 | NED | | ||
| 106.3 | 26.8296 | 30.9311 | h=15.0, j=15.6, k=14.3 | 2MASS | | |
| 106.7 | 26.8297 | 30.9312 | B=19.3, R=16.7 | APM-N | | |
| 112.1 | 26.8287 | 30.9325 | I=18.4, R1=19.7 | USNO-B1 | | |
| 112.5 | 26.8196 | 30.8878 | NED | | ||
| 118.6 | 26.8609 | 30.9377 | I=18.4, R2=20.2 | USNO-B1 | | |
| 123.9 | 26.8433 | 30.9406 | NED | | ||
| 124.4 | 26.8279 | 30.8767 | NED | | ||
| 126.6 | 26.8091 | 30.9154 | B=21.0, R=20.0 | APM-N | | |
| 128.8 | 26.8083 | 30.9158 | NED | | ||
| 133.9 | 26.8304 | 30.9402 | B=21.7, R=20.0 | APM-N | | |
| 136.0 | 26.8442 | 30.8689 | B2=21.0, R1=19.1 | USNO-B1 | | |
| 137.3 | 26.8887 | 30.8897 | NED | | ||
| 140.4 | 26.8760 | 30.8753 | B=21.8, R=20.0 | APM-N | | |
| 147.6 | 26.8101 | 30.9306 | B2=21.0, R2=20.4 | USNO-B1 | | |
| 152.9 | 26.8587 | 30.8650 | NED | | ||
| 153.4 | 26.8191 | 30.8723 | B=21.8, R=20.0 | APM-N | | |
| 153.9 | 26.8335 | 30.9472 | B=21.4, R=19.5 | APM-N | | |
| 154.8 | 26.8335 | 30.9474 | B2=20.9, I=18.4, R1=19.5, R2=19.4 | USNO-B1 | | |
| 159.7 | 26.8842 | 30.8743 | B=21.9, R=20.0 | APM-N | | |
| 169.6 | 26.8076 | 30.9378 | B1=20.4, B2=20.9 | USNO-B1 | | |
| 170.0 | 26.7949 | 30.8965 | I=18.4, R2=20.2 | USNO-B1 | | |
| 170.4 | 26.8079 | 30.8747 | B=21.1, R=19.1 | APM-N | | |
| 175.4 | 26.8570 | 30.8583 | B1=17.1, B2=17.2, I=15.7, R1=16.3, R2=16.5 | USNO-B1 | | |
| 175.4 | 26.8919 | 30.9381 | B2=21.0, I=18.3, R1=19.3, R2=19.9 | USNO-B1 | | |
| 175.5 | 26.8884 | 30.9414 | B=21.9, R=18.9 | APM-N | | |
| 176.0 | 26.9054 | 30.9061 | NED | | ||
| 176.7 | 26.8164 | 30.9471 | I=18.3, R2=20.3 | USNO-B1 | | |
| 177.2 | 26.8156 | 30.9467 | B=20.1, R=17.6 | APM-N | | |
| 178.2 | 26.8058 | 30.8734 | B1=20.2, B2=20.7, I=17.0, R1=19.0, R2=18.9 | USNO-B1 | | |
| 179.5 | 26.8151 | 30.9472 | B1=19.2, B2=20.9, I=18.3 | USNO-B1 | | |
| 183.8 | 26.7961 | 30.8826 | B2=21.0, R1=19.5, R2=20.2 | USNO-B1 | | |
| 184.3 | 26.8604 | 30.9567 | NED | | ||
| 188.2 | 26.7898 | 30.8932 | B1=20.2, I=18.4, R2=20.2 | USNO-B1 | | |
| 199.5 | 26.8911 | 30.9483 | B=21.5, R=20.0 | APM-N | |
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