- Home
- About
- Support
- Data Access
- Data Analysis
- Data Products
- Publications
-
Links
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: 1223470
Presumed name: GRB 240421B
| BAT | 19h 58m 44.64s, -14° 52′ 44.4″ |
|---|---|
| position: | (299.686, -14.879 ± 180″) |
| XRT | 19h 58m 48.17s, -14° 51′ 34.6″ |
| position: | (299.70069, -14.85962 ± 1.9″) |
| UVOT | No position available. |
| Galactic NHI: | 7.40×1020 cm-2 |
| Galactic E(B-V): | 0.197 mag |
| Best RA: | 19h 58m 48.17s | = 299.70069 d |
|---|---|---|
| Best Dec: | -14° 51′ 34.6″ | = -14.85962 d |
| Gal Lat: | -21.48 | |
| Gal Long: | 26.73 | |
| Sun angle: | 92.68°, 6.0 hr West | |
Observability of this burst for Swift.
UVOT data
No UVOT images are currently available.
XRT SPER data
SPER results page for this trigger.
There are 12 SPER messages, and 1 objects have been found
- Object 1 - enhanced position.
- RA (J2000) : 19 58 48.17 (-14.85962)
- Dec (J2000): -14 51 34.6 ( -14.85944)
- Error (90%): 1.9
- Counts in Source: 1325
See the SPER page for details of how this position was produced.
Known transients within 5′ of the GRB
Click on the offset to view the transient announcement.
| Offset (′′) | RA | Dec | Date reported | Source | Misc | Query |
|---|
Catalogue Searches. Searched 200′ around XRT position
Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).
SIMBAD
| RA* | Dec* | SIMBAD name | Query | ||
|---|---|---|---|---|---|
| 161.1 | 299.7467 | -14.8649 | ATO J299.7466-14.8648 | B=15.776, G=15.024942, H=13.260, J=13.526, K=13.167, R=14.805, V=15.052, g=15.354, i=14.402, r=14.775 |  |
* RA/Dec in equinox J2000
X-ray sources
| RA* | Dec* | Source table2 | Observatory | Query |
|---|
Queried the X-ray MASTER catalogue.
* RA/Dec in equinox J2000
1Energy band for count-rate is mission specific.
Galaxies
| RA* | Dec* | Redshift | Catalogue | Query | ||
|---|---|---|---|---|---|---|
| 13.9 | 299.7008 | -14.8636 | NED | | ||
| 18.8 | 299.6967 | -14.8561 | NED | | ||
| 21.2 | 299.6948 | -14.8580 | B1=18.6, B2=18.4, I=17.6, R1=17.3, R2=17.6 | USNO-B1 | | |
| 21.4 | 299.6946 | -14.8581 | NED | | ||
| 27.4 | 299.7067 | -14.8547 | NED | | ||
| 28.8 | 299.7013 | -14.8517 | NED | | ||
| 29.5 | 299.7045 | -14.8669 | B=20.2, R2=19.0, i=18.5 | SSS | | |
| 30.9 | 299.7011 | -14.8510 | B=21.2, R2=19.3, i=18.4 | SSS | | |
| 31.3 | 299.7071 | -14.8658 | NED | | ||
| 31.9 | 299.7072 | -14.8659 | B=18.5, R2=16.9, i=16.6 | SSS | |
Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.
There are 298 galaxies within the position error. The full list is here.
* 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
Stars
| RA* | Dec* | Catalogue | Query | ||
|---|---|---|---|---|---|
| 14.2 | 299.6993 | -14.8633 | B2=20.0, R2=20.3 | USNO-B1 | |
| 14.5 | 299.6986 | -14.8631 | B2=20.6, I=18.7, R1=19.0, R2=19.4 | USNO-B1 | |
| 18.8 | 299.6968 | -14.8560 | B1=18.5, B2=18.2, I=17.2, R1=16.7, R2=17.3 | USNO-B1 | |
| 18.8 | 299.6968 | -14.8560 | h=15.5, j=16.1, k=15.4 | 2MASS | |
| 21.4 | 299.6948 | -14.8580 | h=16.0, j=16.3, k=15.7 | 2MASS | |
| 28.8 | 299.7012 | -14.8516 | B2=20.7, I=18.4, R2=18.6 | USNO-B1 | |
| 29.0 | 299.7045 | -14.8668 | B1=20.6, B2=19.9, I=18.3, R1=18.6, R2=18.8 | USNO-B1 | |
| 29.9 | 299.7085 | -14.8562 | B1=20.1, B2=21.1, R2=20.1 | USNO-B1 | |
| 31.3 | 299.7070 | -14.8658 | h=15.1, j=15.9, k=15.0 | 2MASS | |
| 31.5 | 299.6953 | -14.8667 | B1=20.5, B2=20.5, R2=19.6 | USNO-B1 | |
There are 342 stars within the position error. The full list is here.
* 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.