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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: 709357;
Presumed name: GRB 160821B
| BAT | 18h 39m 56.88s, +62° 23′ 34.8″ |
|---|---|
| position: | (279.987, +62.393 ± 180″) |
| XRT | 18h 39m 54.72s, +62° 23′ 31.2″ |
| position: | (279.9780, 62.3920 ± 2.5″) |
| UVOT | No position available. |
| Galactic NHI: | 4.87×100 cm-2 |
| Galactic E(B-V): | 0.051 mag |
| Best RA: | 18h 39m 54.72s | = 279.9780 d |
|---|---|---|
| Best Dec: | +62° 23′ 31.2″ | = 62.3920 d |
| Gal Lat: | 25.14 | |
| Gal Long: | 92.18 | |
| Sun angle: | 95.91°, -8.6 hr East of Sun | |
1Sper #2 auto processing.
Galaxies within 3.33 of XRT position
| RA* | Dec* | Redshift | Catalogue | Query | ||
|---|---|---|---|---|---|---|
| 6.4 | 279.9750 | 62.3931 | B1=20.8, B2=19.5, R2=19.6 | USNO-B1 |  | |
| 6.4 | 279.9747 | 62.3929 | B1=20.3, B2=19.7, R2=19.1 | USNO-B1 | | |
| 30.1 | 279.9636 | 62.3870 | B=18.2, R=16.4 | APM-N | | |
| 30.6 | 279.9633 | 62.3869 | NED | | ||
| 30.6 | 279.9632 | 62.3870 | h=0.0, j=15.5, k=14.3 | 2MASS | | |
| 36.6 | 279.9572 | 62.3952 | B1=20.5, I=18.3, R2=20.4 | USNO-B1 | | |
| 36.8 | 279.9661 | 62.4006 | B=20.3, R=20.0 | APM-N | | |
| 37.2 | 279.9655 | 62.4006 | B=20.6, R=18.6 | APM-N | | |
| 37.2 | 279.9658 | 62.4006 | B1=19.1, B2=18.7, I=17.9, R1=18.8, R2=18.7 | USNO-B1 | | |
| 37.9 | 279.9567 | 62.3957 | B=21.9, R=19.5 | APM-N | | |
| 47.4 | 279.9878 | 62.4043 | B=21.9, R=19.3 | APM-N | | |
| 52.0 | 279.9935 | 62.3795 | B2=20.9, I=18.2, R1=19.8, R2=19.5 | USNO-B1 | | |
| 54.4 | 280.0038 | 62.4013 | B1=20.1, B2=20.4, I=18.4, R1=19.3, R2=19.8 | USNO-B1 | | |
| 54.9 | 279.9454 | 62.3898 | B=21.9, R=19.6 | APM-N | | |
| 60.4 | 279.9957 | 62.3774 | B=22.0, R=20.0 | APM-N | | |
| 60.6 | 279.9960 | 62.3774 | B2=20.7, I=18.4, R2=19.9 | USNO-B1 | | |
| 61.2 | 279.9796 | 62.4090 | B1=20.8, I=18.3, R2=20.4 | USNO-B1 | | |
| 64.6 | 279.9809 | 62.3741 | B=22.1, R=19.5 | APM-N | | |
| 64.7 | 279.9813 | 62.3741 | B1=20.8, B2=19.9, I=18.3, R1=19.3, R2=19.0 | USNO-B1 | | |
| 66.8 | 279.9814 | 62.3735 | B=21.9, R=18.7 | APM-N | | |
| 68.2 | 279.9852 | 62.4106 | B=21.9, R=20.0 | APM-N | | |
| 69.2 | 280.0188 | 62.3956 | B1=20.9, B2=20.9, R2=19.6 | USNO-B1 | | |
| 69.4 | 280.0123 | 62.3811 | B2=21.2, I=18.3, R1=19.6, R2=19.8 | USNO-B1 | | |
| 72.6 | 280.0137 | 62.3805 | B2=21.0, I=18.3, R2=20.1 | USNO-B1 | | |
| 74.0 | 280.0215 | 62.3959 | B1=20.5, B2=20.7, R2=20.4 | USNO-B1 | | |
| 75.2 | 280.0220 | 62.3965 | B=20.4, R=20.0 | APM-N | | |
| 80.1 | 279.9863 | 62.3701 | B2=21.0, I=18.4, R1=20.1, R2=20.1 | USNO-B1 | | |
| 80.7 | 279.9866 | 62.3699 | B=22.1, R=20.0 | APM-N | | |
| 83.2 | 280.0273 | 62.3955 | B1=23.1, B2=20.3 | USNO-B1 | | |
| 84.4 | 279.9672 | 62.4149 | B=21.9, R=19.8 | APM-N | | |
| 85.4 | 280.0272 | 62.3855 | B=20.0, R=17.4 | APM-N | | |
| 86.9 | 280.0280 | 62.3853 | B=20.0, R=17.9 | APM-N | | |
| 87.2 | 280.0094 | 62.4114 | B2=21.4, I=18.4, R1=19.5, R2=20.0 | USNO-B1 | | |
| 87.4 | 279.9963 | 62.4147 | B1=21.0, B2=18.1, R2=20.3 | USNO-B1 | | |
| 87.6 | 280.0165 | 62.4085 | B1=20.9, R2=19.9 | USNO-B1 | | |
| 90.4 | 280.0001 | 62.4149 | I=18.4, R1=20.0, R2=19.9 | USNO-B1 | | |
| 97.0 | 280.0047 | 62.4159 | B1=21.1, I=18.1 | USNO-B1 | | |
| 100.3 | 279.9293 | 62.3756 | B1=20.4, B2=20.9, I=18.5, R2=20.2 | USNO-B1 | | |
| 104.4 | 279.9907 | 62.3636 | B=20.0, R=18.8 | APM-N | | |
| 104.5 | 279.9283 | 62.3743 | B1=20.2, I=18.4 | USNO-B1 | | |
| 104.8 | 279.9294 | 62.3736 | B=22.1, R=20.0 | APM-N | | |
| 105.4 | 279.9156 | 62.3967 | I=18.4, R1=19.5, R2=20.3 | USNO-B1 | | |
| 108.8 | 280.0208 | 62.4148 | B=21.9, R=19.4 | APM-N | | |
| 109.1 | 280.0202 | 62.4151 | B1=20.9, B2=21.2, I=18.2, R1=19.5, R2=19.5 | USNO-B1 | | |
| 112.4 | 279.9888 | 62.3612 | B1=20.2, R2=18.7 | USNO-B1 | | |
| 112.8 | 279.9263 | 62.4122 | B1=20.9, R1=20.1 | USNO-B1 | | |
| 114.4 | 279.9102 | 62.3872 | B1=20.3, R1=20.1 | USNO-B1 | | |
| 115.7 | 279.9483 | 62.3630 | B1=20.6, R1=20.1 | USNO-B1 | | |
| 116.9 | 279.9826 | 62.3596 | B1=20.1, B2=21.0, R2=20.3 | USNO-B1 | | |
| 117.3 | 280.0205 | 62.4179 | B1=21.1, R2=19.9 | USNO-B1 | | |
| 118.4 | 279.9740 | 62.4248 | B1=20.1, B2=19.0, I=18.3, R1=19.1, R2=18.9 | USNO-B1 | | |
| 119.1 | 279.9880 | 62.3592 | R1=20.1, R2=19.0 | USNO-B1 | | |
| 120.1 | 279.9387 | 62.3641 | B1=20.3, B2=19.9, I=18.4, R1=19.7, R2=20.1 | USNO-B1 | | |
| 120.8 | 280.0025 | 62.4236 | I=18.2, R1=19.7, R2=19.8 | USNO-B1 | | |
| 121.2 | 279.9106 | 62.3794 | B=21.9, R=18.9 | APM-N | | |
| 121.6 | 279.9380 | 62.3638 | B2=20.1, I=18.5, R2=20.1 | USNO-B1 | | |
| 122.5 | 280.0014 | 62.4242 | B1=21.4, I=18.4, R1=20.1 | USNO-B1 | | |
| 122.9 | 279.9717 | 62.4260 | B=16.7, R=15.1 | APM-N | | |
| 122.9 | 279.9890 | 62.3582 | B1=20.7, R1=20.1, R2=19.3 | USNO-B1 | | |
| 127.9 | 279.9031 | 62.3844 | B2=21.0, R2=19.9 | USNO-B1 | | |
| 129.7 | 279.9024 | 62.4004 | I=18.4, R2=20.2 | USNO-B1 | | |
| 131.9 | 280.0561 | 62.3861 | B2=21.2, R2=20.3 | USNO-B1 | | |
| 138.1 | 280.0017 | 62.3553 | I=18.2, R1=20.1 | USNO-B1 | | |
| 138.1 | 280.0398 | 62.4175 | B2=13.0, R1=19.6, R2=19.2 | USNO-B1 | | |
| 139.2 | 280.0365 | 62.4196 | R1=19.5, R2=19.9 | USNO-B1 | | |
| 139.5 | 280.0377 | 62.4192 | B2=18.7, R1=19.0 | USNO-B1 | | |
| 140.2 | 279.9972 | 62.3541 | B1=20.4, I=18.4 | USNO-B1 | | |
| 140.4 | 279.9255 | 62.4225 | B=21.7, R=20.0 | APM-N | | |
| 140.9 | 279.9975 | 62.3539 | B1=20.5, I=18.4 | USNO-B1 | | |
| 141.0 | 280.0405 | 62.3657 | B2=20.9, I=18.3, R1=19.9, R2=19.9 | USNO-B1 | | |
| 141.7 | 280.0346 | 62.3627 | I=16.9, R1=19.4, R2=19.9 | USNO-B1 | | |
| 143.4 | 280.0345 | 62.3620 | B=22.1, R=19.3 | APM-N | | |
| 143.6 | 279.9348 | 62.4265 | B1=21.0, I=18.5, R2=19.9 | USNO-B1 | | |
| 145.7 | 279.8919 | 62.3851 | B1=21.1, B2=21.0, I=18.1, R2=19.4 | USNO-B1 | | |
| 146.7 | 279.8915 | 62.3848 | I=18.3, R2=20.1 | USNO-B1 | | |
| 147.0 | 279.8911 | 62.3852 | B2=21.2, I=18.2, R1=19.9, R2=20.1 | USNO-B1 | | |
| 149.2 | 279.9706 | 62.4333 | B1=20.5, B2=20.6, I=18.0, R1=19.4, R2=19.1 | USNO-B1 | | |
| 150.2 | 280.0646 | 62.4034 | B1=20.6, I=18.5, R2=19.9 | USNO-B1 | | |
| 150.2 | 280.0207 | 62.3552 | B=21.1, R=19.5 | APM-N | | |
| 150.3 | 280.0661 | 62.4008 | B=21.8, R=19.9 | APM-N | | |
| 151.7 | 280.0210 | 62.3549 | R1=19.7, R2=20.0 | USNO-B1 | | |
| 151.8 | 280.0658 | 62.4032 | B1=20.7, I=18.2, R2=20.3 | USNO-B1 | | |
| 152.5 | 279.8943 | 62.3751 | B=21.9, R=19.1 | APM-N | | |
| 152.6 | 279.9594 | 62.3505 | B2=20.3, R2=19.9 | USNO-B1 | | |
| 154.0 | 279.9590 | 62.3501 | B=21.9, R=19.8 | APM-N | | |
| 154.1 | 280.0632 | 62.3754 | B2=21.3, I=18.1, R2=19.8 | USNO-B1 | | |
| 158.3 | 280.0554 | 62.3666 | B1=20.5, R1=19.9 | USNO-B1 | | |
| 159.9 | 279.8973 | 62.3680 | B=21.6, R=20.0 | APM-N | | |
| 159.9 | 279.8978 | 62.3677 | B=21.1, R=20.0 | APM-N | | |
| 160.1 | 279.8971 | 62.3681 | B1=20.1, B2=20.5, I=18.4, R2=19.4 | USNO-B1 | | |
| 160.5 | 280.0686 | 62.3770 | B2=20.7, I=18.4, R1=19.8, R2=19.8 | USNO-B1 | | |
| 160.7 | 279.9702 | 62.4365 | B1=19.9, B2=16.7 | USNO-B1 | | |
| 163.5 | 280.0275 | 62.4312 | B1=21.2, R2=20.3 | USNO-B1 | | |
| 163.6 | 279.9199 | 62.3554 | I=18.4, R2=20.1 | USNO-B1 | | |
| 164.1 | 279.9109 | 62.3587 | B1=20.6, B2=19.1, I=17.6, R1=18.7, R2=17.4 | USNO-B1 | | |
| 165.0 | 279.9104 | 62.3586 | B=21.5, R=18.4 | APM-N | | |
| 166.0 | 279.9013 | 62.3627 | B=22.1, R=19.9 | APM-N | | |
| 166.9 | 279.9178 | 62.3550 | B=19.9, R=20.0 | APM-N | | |
| 166.9 | 279.9178 | 62.3550 | h=14.7, j=15.1, k=13.9 | 2MASS | | |
| 166.9 | 279.9179 | 62.3550 | NED | | ||
| 167.1 | 279.9178 | 62.3549 | B1=18.6, B2=17.7, I=16.2, R1=15.9, R2=15.2 | USNO-B1 | | |
| 167.6 | 280.0784 | 62.3902 | B1=20.1, R1=20.1 | USNO-B1 | | |
| 168.9 | 280.0792 | 62.3918 | I=18.4, R2=20.4 | USNO-B1 | | |
| 171.3 | 279.8765 | 62.3990 | B=21.9, R=20.0 | APM-N | | |
| 171.5 | 279.8987 | 62.4224 | B1=20.7, R1=19.7 | USNO-B1 | | |
| 171.8 | 279.8751 | 62.3936 | B1=19.9, B2=20.9, R1=18.1 | USNO-B1 | | |
| 173.0 | 279.8789 | 62.4063 | B2=20.9, I=18.4, R2=20.2 | USNO-B1 | | |
| 173.9 | 279.8744 | 62.3974 | B1=18.5, B2=18.3 | USNO-B1 | | |
| 175.0 | 279.9085 | 62.3556 | B2=20.6, I=18.4, R2=18.4 | USNO-B1 | | |
| 175.1 | 279.9073 | 62.3561 | B1=17.9, B2=21.1, I=18.5, R2=17.8 | USNO-B1 | | |
| 175.3 | 279.9080 | 62.3557 | B2=20.9, R2=20.1 | USNO-B1 | | |
| 176.9 | 279.9063 | 62.3558 | B2=19.6, R2=19.6 | USNO-B1 | | |
| 177.3 | 279.8722 | 62.3966 | B=16.8, R=14.7 | APM-N | | |
| 178.1 | 279.8718 | 62.3969 | B=15.9, R=13.6 | APM-N | | |
| 178.3 | 279.8717 | 62.3969 | NED | | ||
| 178.3 | 279.8716 | 62.3970 | h=13.0, j=13.8, k=12.7 | 2MASS | | |
| 178.4 | 279.9883 | 62.3427 | I=18.4, R1=19.7, R2=19.7 | USNO-B1 | | |
| 179.2 | 279.9867 | 62.3424 | B=21.5, R=18.6 | APM-N | | |
| 179.9 | 279.8704 | 62.3950 | B1=19.9, R2=20.1 | USNO-B1 | | |
| 181.1 | 279.9124 | 62.3519 | B=18.1, R=20.0 | APM-N | | |
| 181.5 | 279.9120 | 62.3519 | B1=17.8, B2=17.8, I=15.7, R1=16.5, R2=16.9 | USNO-B1 | | |
| 181.5 | 279.8695 | 62.3954 | B1=19.4, I=18.3, R2=18.9 | USNO-B1 | | |
| 182.3 | 279.9423 | 62.4399 | B1=20.8, I=18.4, R2=20.3 | USNO-B1 | | |
| 183.8 | 279.9268 | 62.4372 | B1=21.1, R2=19.6 | USNO-B1 | | |
| 185.1 | 280.0791 | 62.4132 | B=21.9, R=19.8 | APM-N | | |
| 186.1 | 280.0768 | 62.4160 | B=21.2, R=18.3 | APM-N | | |
| 186.3 | 280.0875 | 62.3819 | R1=19.6, R2=19.9 | USNO-B1 | | |
| 186.9 | 279.8680 | 62.4019 | B1=18.9, R1=18.6, R2=19.9 | USNO-B1 | | |
| 187.2 | 280.0887 | 62.3835 | B=19.6, R=17.9 | APM-N | | |
| 187.3 | 280.0886 | 62.3832 | B1=20.8, B2=18.0, I=16.9 | USNO-B1 | | |
| 187.8 | 280.0891 | 62.3837 | B1=18.8, B2=18.0, I=17.2, R1=17.6, R2=17.8 | USNO-B1 | | |
| 188.7 | 279.8654 | 62.3971 | B1=18.5, B2=20.0, R2=19.3 | USNO-B1 | | |
| 189.2 | 280.0899 | 62.3835 | B=19.3, R=18.1 | APM-N | | |
| 189.4 | 279.9965 | 62.4439 | B2=21.2, I=18.2, R1=19.7, R2=20.0 | USNO-B1 | | |
| 189.6 | 280.0676 | 62.3597 | B1=18.2, I=17.0, R1=19.0 | USNO-B1 | | |
| 189.6 | 279.9986 | 62.4438 | B=21.9, R=19.7 | APM-N | | |
| 190.3 | 280.0721 | 62.3622 | I=18.3, R1=18.9 | USNO-B1 | | |
| 190.5 | 279.8643 | 62.3969 | B1=19.5, B2=19.4, R2=20.1 | USNO-B1 | | |
| 192.2 | 279.8731 | 62.3700 | I=18.3, R2=19.8 | USNO-B1 | | |
| 193.7 | 280.0721 | 62.3606 | NED | | ||
| 193.7 | 280.0723 | 62.3606 | h=13.3, j=13.9, k=12.8 | 2MASS | | |
| 193.9 | 280.0722 | 62.3605 | B=14.4, R=12.5 | APM-N | | |
| 194.2 | 279.9059 | 62.3497 | B1=18.2, B2=18.0, I=17.4, R1=17.6, R2=17.9 | USNO-B1 | | |
| 194.3 | 279.8644 | 62.3801 | B=20.9, R=20.0 | APM-N | | |
| 194.5 | 280.0728 | 62.3606 | B1=15.7, B2=12.2 | USNO-B1 | | |
| 194.8 | 280.0726 | 62.3603 | B=15.9, R=14.2 | APM-N | | |
| 194.9 | 279.8639 | 62.3805 | B=21.0, R=20.0 | APM-N | | |
| 195.1 | 279.8637 | 62.3807 | B1=19.8, B2=20.3, I=18.4, R2=19.9 | USNO-B1 | | |
| 195.5 | 279.8646 | 62.3784 | B1=20.8, B2=21.0, R2=20.0 | USNO-B1 | | |
| 195.6 | 279.8637 | 62.3799 | B2=20.7, R2=19.6 | USNO-B1 | | |
| 200.0 | 280.0772 | 62.3608 | B1=19.9, B2=17.9 | 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