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Swift Trigger: 1001130;
Presumed name: GRB 201021C
| BAT | 00h 50m 12.00s, -55° 50′ 20.4″ |
|---|---|
| position: | (12.550, -55.839 ± 180″) |
| XRT | 00h 50m 07.06s, -55° 51′ 58.0″ |
| position: | (12.5294, -55.8661 ± 2.0″) |
| UVOT | 00h 50m 06.84s, -55° 51′ 56.5″ |
| position: | (12.5285, -55.8657 ± 1.1″) |
| Galactic NHI: | 1.94×100 cm-2 |
| Galactic E(B-V): | 0.017 mag |
| Best RA: | 00h 50m 06.84s | = 12.5285 d |
|---|---|---|
| Best Dec: | -55° 51′ 56.5″ | = -55.8657 d |
| Gal Lat: | -61.26 | |
| Gal Long: | 303.32 | |
| Sun angle: | 112.16°, -11.1 hr East of Sun | |
1Sper #5 auto processing.
Galaxies within 3.33 of XRT position
| RA* | Dec* | Redshift | Catalogue | Query | ||
|---|---|---|---|---|---|---|
| 17.5 | 12.5250 | -55.8614 | Mag=19.0 | NED |  | |
| 21.3 | 12.5312 | -55.8714 | Mag=19.0 | NED | | |
| 22.1 | 12.5179 | -55.8669 | Mag=19.0 | NED | | |
| 24.0 | 12.5409 | -55.8644 | B2=20.2, I=19.0, R1=19.7, R2=20.7 | USNO-B1 | | |
| 24.5 | 12.5411 | -55.8642 | B=20.8, R2=19.7 | SSS | | |
| 26.6 | 12.5413 | -55.8636 | Mag=19.0 | NED | | |
| 32.2 | 12.5137 | -55.8692 | Mag=19.0 | NED | | |
| 34.1 | 12.5136 | -55.8695 | B=22.3 | SSS | | |
| 35.3 | 12.5121 | -55.8622 | Mag=19.0 | NED | | |
| 37.4 | 12.5120 | -55.8625 | B=22.1 | SSS | | |
| 37.6 | 12.5120 | -55.8623 | B2=20.4, R2=23.5 | USNO-B1 | | |
| 37.8 | 12.5311 | -55.8556 | I=18.5, R1=19.7 | USNO-B1 | | |
| 40.1 | 12.5475 | -55.8689 | Mag=19.0 | NED | | |
| 40.2 | 12.5179 | -55.8750 | Mag=19.0 | NED | | |
| 40.9 | 12.5275 | -55.8769 | Mag=19.0 | NED | | |
| 41.5 | 12.5492 | -55.8658 | Mag=19.0 | NED | | |
| 46.3 | 12.5425 | -55.8556 | Mag=19.0 | NED | | |
| 46.7 | 12.5163 | -55.8547 | Mag=19.0 | NED | | |
| 47.3 | 12.5475 | -55.8733 | Mag=19.0 | NED | | |
| 47.4 | 12.5508 | -55.8692 | Mag=19.0 | NED | | |
| 49.0 | 12.5321 | -55.8522 | Mag=19.0 | NED | | |
| 49.9 | 12.5042 | -55.8636 | Mag=19.0 | NED | | |
| 50.6 | 12.5125 | -55.8767 | Mag=19.0 | NED | | |
| 50.8 | 12.5138 | -55.8772 | B2=20.0, R1=19.6, R2=19.7 | USNO-B1 | | |
| 50.9 | 12.5139 | -55.8772 | B=20.9, R2=20.3 | SSS | | |
| 51.2 | 12.5312 | -55.8797 | Mag=19.0 | NED | | |
| 52.7 | 12.5038 | -55.8706 | Mag=19.0 | NED | | |
| 58.4 | 12.4996 | -55.8672 | Mag=19.0 | NED | | |
| 62.0 | 12.5496 | -55.8783 | Mag=19.0 | NED | | |
| 63.5 | 12.5427 | -55.8821 | B2=20.5, I=18.5, R1=19.9, R2=21.1 | USNO-B1 | | |
| 63.8 | 12.5428 | -55.8822 | B=21.6, R2=20.0, i=19.0 | SSS | | |
| 67.3 | 12.5429 | -55.8825 | Mag=19.0 | NED | | |
| 67.8 | 12.5289 | -55.8849 | B=21.3 | SSS | | |
| 67.9 | 12.5280 | -55.8850 | B2=19.2, R2=18.9 | USNO-B1 | | |
| 68.1 | 12.5264 | -55.8849 | B2=19.6, I=19.0, R2=19.0 | USNO-B1 | | |
| 68.2 | 12.5296 | -55.8850 | B2=19.3, I=18.0, R1=19.3 | USNO-B1 | | |
| 68.4 | 12.5267 | -55.8850 | B=21.0, R2=19.6 | SSS | | |
| 68.6 | 12.5271 | -55.8847 | Mag=19.0 | NED | | |
| 69.5 | 12.5313 | -55.8854 | B=20.1, R2=18.4, i=17.6 | SSS | | |
| 70.1 | 12.5296 | -55.8853 | Mag=19.46 | NED | | |
| 70.4 | 12.5492 | -55.8500 | Mag=19.46 | NED | | |
| 76.9 | 12.5508 | -55.8838 | B=22.5 | SSS | | |
| 79.0 | 12.5684 | -55.8673 | B2=20.1, R2=23.2 | USNO-B1 | | |
| 79.3 | 12.5686 | -55.8671 | B=22.7, R2=20.0 | SSS | | |
| 79.6 | 12.5546 | -55.8492 | Mag=19.46 | NED | | |
| 79.6 | 12.4908 | -55.8592 | Mag=19.46 | NED | | |
| 81.0 | 12.4919 | -55.8581 | B2=21.3, R2=20.1 | USNO-B1 | | |
| 81.8 | 12.4907 | -55.8594 | B=21.8, R2=19.4 | SSS | | |
| 82.5 | 12.5179 | -55.8436 | Mag=19.46 | NED | | |
| 83.1 | 12.5613 | -55.8797 | Mag=19.46 | NED | | |
| 83.2 | 12.5379 | -55.8433 | Mag=19.46 | NED | | |
| 83.9 | 12.5378 | -55.8433 | B=22.9, i=18.9 | SSS | | |
| 84.2 | 12.5021 | -55.8475 | Mag=19.46 | NED | | |
| 86.1 | 12.5154 | -55.8883 | Mag=19.46 | NED | | |
| 87.7 | 12.4938 | -55.8803 | Mag=19.46 | NED | | |
| 89.2 | 12.5463 | -55.8883 | Mag=19.46 | NED | | |
| 91.6 | 12.5400 | -55.8903 | Mag=19.46 | NED | | |
| 93.3 | 12.5753 | -55.8632 | B=22.3 | SSS | | |
| 95.0 | 12.5754 | -55.8628 | Mag=19.46 | NED | | |
| 95.3 | 12.5279 | -55.8922 | Mag=19.46 | NED | | |
| 96.4 | 12.5446 | -55.8406 | Mag=19.46 | NED | | |
| 97.6 | 12.5512 | -55.8894 | Mag=19.46 | NED | | |
| 100.7 | 12.5333 | -55.8936 | Mag=19.46 | NED | | |
| 101.0 | 12.5213 | -55.8933 | Mag=19.46 | NED | | |
| 103.7 | 12.4800 | -55.8756 | Mag=19.46 | NED | | |
| 105.5 | 12.5767 | -55.8544 | Mag=19.46 | NED | | |
| 105.5 | 12.5113 | -55.8381 | Mag=19.46 | NED | | |
| 105.7 | 12.4979 | -55.8419 | Mag=19.46 | NED | | |
| 107.0 | 12.5200 | -55.8364 | Mag=19.46 | NED | | |
| 107.4 | 12.5114 | -55.8380 | B=21.8, R2=19.7, i=19.0 | SSS | | |
| 107.5 | 12.5115 | -55.8380 | B2=20.9, I=18.5, R1=19.7, R2=19.9 | USNO-B1 | | |
| 109.2 | 12.5306 | -55.8964 | B=22.2 | SSS | | |
| 109.6 | 12.5300 | -55.8961 | Mag=19.46 | NED | | |
| 110.8 | 12.5271 | -55.8350 | Mag=19.46 | NED | | |
| 111.1 | 12.5271 | -55.8353 | B2=20.5, R2=20.9 | USNO-B1 | | |
| 111.4 | 12.5833 | -55.8694 | Mag=19.46 | NED | | |
| 111.9 | 12.5272 | -55.8351 | B=21.8 | SSS | | |
| 112.0 | 12.5425 | -55.8958 | Mag=19.46 | NED | | |
| 112.3 | 12.4779 | -55.8528 | Mag=19.46 | NED | | |
| 114.5 | 12.5838 | -55.8722 | Mag=19.46 | NED | | |
| 115.0 | 12.5854 | -55.8653 | Mag=19.46 | NED | | |
| 115.6 | 12.5072 | -55.8957 | B=21.6, R2=18.9, i=18.0 | SSS | | |
| 116.0 | 12.4967 | -55.8925 | Mag=19.46 | NED | | |
| 116.2 | 12.5071 | -55.8956 | Mag=19.46 | NED | | |
| 117.4 | 12.5271 | -55.8331 | Mag=19.46 | NED | | |
| 118.9 | 12.5371 | -55.8331 | Mag=19.46 | NED | | |
| 119.1 | 12.5312 | -55.8986 | Mag=19.46 | NED | | |
| 119.5 | 12.5288 | -55.8329 | B=22.0 | SSS | | |
| 120.5 | 12.5492 | -55.8344 | Mag=19.46 | NED | | |
| 121.6 | 12.5404 | -55.8325 | Mag=19.46 | NED | | |
| 122.9 | 12.4675 | -55.8639 | Mag=19.46 | NED | | |
| 123.6 | 12.4700 | -55.8758 | Mag=19.46 | NED | | |
| 124.0 | 12.5854 | -55.8528 | Mag=19.46 | NED | | |
| 125.0 | 12.4800 | -55.8442 | Mag=19.46 | NED | | |
| 125.0 | 12.4677 | -55.8639 | I=18.8, R1=19.7, R2=19.9 | USNO-B1 | | |
| 125.3 | 12.4996 | -55.8350 | Mag=18.46 | NED | | |
| 126.7 | 12.4846 | -55.8908 | Mag=18.46 | NED | | |
| 126.7 | 12.5000 | -55.8350 | B=18.4, R2=16.8, i=15.6 | SSS | | |
| 126.7 | 12.4721 | -55.8811 | Mag=18.46 | NED | | |
| 128.5 | 12.5200 | -55.8303 | Mag=18.46 | NED | | |
| 129.4 | 12.4989 | -55.8345 | B2=17.7, I=16.4, R1=17.3 | USNO-B1 | | |
| 130.7 | 12.4975 | -55.8339 | Mag=18.46 | NED | | |
| 130.7 | 12.5913 | -55.8572 | Mag=18.46 | NED | | |
| 131.1 | 12.4983 | -55.8342 | B=20.6 | SSS | | |
| 131.8 | 12.5392 | -55.9017 | Mag=18.46 | NED | | |
| 132.8 | 12.5025 | -55.8317 | Mag=18.46 | NED | | |
| 135.1 | 12.5963 | -55.8655 | B=21.7, R2=19.8, i=18.8 | SSS | | |
| 135.4 | 12.5750 | -55.8386 | Mag=18.46 | NED | | |
| 135.7 | 12.4667 | -55.8806 | Mag=18.46 | NED | | |
| 136.5 | 12.5819 | -55.8422 | B2=20.3, R2=20.9 | USNO-B1 | | |
| 136.7 | 12.5710 | -55.8362 | B=22.6 | SSS | | |
| 137.2 | 12.5879 | -55.8842 | Mag=18.46 | NED | | |
| 137.2 | 12.5342 | -55.8278 | Mag=18.46 | NED | | |
| 137.9 | 12.5967 | -55.8656 | Mag=18.46 | NED | | |
| 138.7 | 12.4833 | -55.8947 | Mag=18.46 | NED | | |
| 140.6 | 12.4829 | -55.8364 | Mag=18.46 | NED | | |
| 140.8 | 12.5850 | -55.8431 | Mag=18.46 | NED | | |
| 140.8 | 12.5725 | -55.8961 | Mag=18.46 | NED | | |
| 141.3 | 12.5736 | -55.8965 | B2=19.9, R1=20.1 | USNO-B1 | | |
| 141.4 | 12.5408 | -55.9044 | Mag=18.46 | NED | | |
| 141.5 | 12.5442 | -55.8275 | Mag=18.46 | NED | | |
| 141.9 | 12.5183 | -55.9047 | Mag=18.46 | NED | | |
| 142.4 | 12.4687 | -55.8447 | Mag=19.1 | NED | | |
| 142.7 | 12.4579 | -55.8667 | Mag=19.1 | NED | | |
| 142.7 | 12.5000 | -55.8294 | Mag=19.1 | NED | | |
| 142.9 | 12.5579 | -55.9017 | Mag=19.1 | NED | | |
| 143.4 | 12.4612 | -55.8528 | Mag=19.1 | NED | | |
| 144.5 | 12.4686 | -55.8449 | B=21.6, R2=19.3, i=18.7 | SSS | | |
| 146.0 | 12.6011 | -55.8714 | B2=20.2, R2=20.2 | USNO-B1 | | |
| 146.2 | 12.4567 | -55.8611 | Mag=19.1 | NED | | |
| 146.9 | 12.5025 | -55.9039 | Mag=19.1 | NED | | |
| 147.5 | 12.4558 | -55.8700 | Mag=19.1 | NED | | |
| 148.2 | 12.6008 | -55.8717 | Mag=19.1 | NED | | |
| 148.4 | 12.5679 | -55.9006 | Mag=19.1 | NED | | |
| 149.3 | 12.5817 | -55.8944 | Mag=19.1 | NED | | |
| 149.7 | 12.4858 | -55.8317 | Mag=19.1 | NED | | |
| 149.9 | 12.5996 | -55.8796 | B2=20.5, R2=21.8 | USNO-B1 | | |
| 150.2 | 12.4871 | -55.9003 | Mag=19.1 | NED | | |
| 150.3 | 12.4704 | -55.8394 | Mag=19.1 | NED | | |
| 150.9 | 12.5563 | -55.8269 | Mag=19.1 | NED | | |
| 151.7 | 12.6033 | -55.8631 | Mag=19.1 | NED | | |
| 151.9 | 12.5925 | -55.8875 | Mag=19.1 | NED | | |
| 152.2 | 12.5675 | -55.8294 | Mag=19.1 | NED | | |
| 152.2 | 12.5767 | -55.8333 | Mag=19.1 | NED | | |
| 154.1 | 12.5425 | -55.8236 | Mag=19.1 | NED | | |
| 154.6 | 12.4529 | -55.8589 | Mag=19.1 | NED | | |
| 156.5 | 12.6042 | -55.8572 | Mag=19.1 | NED | | |
| 156.7 | 12.6025 | -55.8786 | Mag=19.1 | NED | | |
| 157.1 | 12.5213 | -55.8222 | Mag=19.1 | NED | | |
| 158.2 | 12.6013 | -55.8492 | Mag=19.1 | NED | | |
| 159.8 | 12.4708 | -55.8353 | Mag=19.1 | NED | | |
| 160.1 | 12.4875 | -55.9039 | Mag=19.1 | NED | | |
| 160.2 | 12.5517 | -55.8231 | Mag=19.1 | NED | | |
| 160.5 | 12.4708 | -55.8350 | Mag=19.1 | NED | | |
| 160.8 | 12.5516 | -55.8232 | B2=21.3, R2=20.2 | USNO-B1 | | |
| 161.0 | 12.5950 | -55.8411 | Mag=19.1 | NED | | |
| 161.0 | 12.5567 | -55.9075 | Mag=19.1 | NED | | |
| 161.4 | 12.6060 | -55.8789 | B2=20.6, R1=19.6, R2=21.1 | USNO-B1 | | |
| 162.9 | 12.4550 | -55.8844 | Mag=19.1 | NED | | |
| 163.3 | 12.5388 | -55.9106 | Mag=19.1 | NED | | |
| 163.4 | 12.4625 | -55.8394 | Mag=19.1 | NED | | |
| 167.4 | 12.4958 | -55.8231 | Mag=19.1 | NED | | |
| 167.8 | 12.4763 | -55.9019 | Mag=19.1 | NED | | |
| 168.7 | 12.4579 | -55.8908 | Mag=19.1 | NED | | |
| 168.7 | 12.6079 | -55.8514 | Mag=19.1 | NED | | |
| 169.1 | 12.4812 | -55.9044 | Mag=19.1 | NED | | |
| 169.1 | 12.4479 | -55.8789 | Mag=19.1 | NED | | |
| 169.3 | 12.5846 | -55.9008 | Mag=19.1 | NED | | |
| 169.5 | 12.4483 | -55.8781 | I=18.5, R1=19.6, R2=19.4 | USNO-B1 | | |
| 169.6 | 12.4554 | -55.8425 | Mag=19.1 | NED | | |
| 170.0 | 12.5417 | -55.8192 | Mag=19.1 | NED | | |
| 170.7 | 12.5846 | -55.8303 | Mag=19.1 | NED | | |
| 170.8 | 12.4480 | -55.8790 | B=21.8, R2=19.5, i=19.0 | SSS | | |
| 171.6 | 12.5626 | -55.8222 | B=21.6, R2=20.6 | SSS | | |
| 172.0 | 12.5539 | -55.9119 | B2=20.2, R2=20.9 | USNO-B1 | | |
| 172.9 | 12.5538 | -55.8197 | Mag=19.1 | NED | | |
| 173.0 | 12.6004 | -55.8930 | B=20.3, R2=18.7, i=18.1 | SSS | | |
| 173.6 | 12.5540 | -55.8199 | B2=20.6, R1=19.6, R2=20.0 | USNO-B1 | | |
| 173.7 | 12.5537 | -55.8198 | B=22.5, R2=20.0 | SSS | | |
| 173.9 | 12.5917 | -55.8328 | B=20.9, R2=19.8 | SSS | | |
| 173.9 | 12.4479 | -55.8828 | Mag=19.1 | NED | | |
| 174.5 | 12.5917 | -55.8328 | Mag=19.1 | NED | | |
| 174.8 | 12.6138 | -55.8733 | Mag=19.1 | NED | | |
| 174.8 | 12.4596 | -55.8361 | Mag=19.1 | NED | | |
| 175.4 | 12.5354 | -55.8172 | Mag=20.16 | NED | | |
| 175.4 | 12.6004 | -55.8931 | Mag=20.29 | NED | | |
| 175.5 | 12.5125 | -55.8178 | Mag=20.29 | NED | | |
| 176.2 | 12.5242 | -55.8169 | Mag=20.29 | NED | | |
| 176.2 | 12.6100 | -55.8474 | B2=21.6, I=19.0 | USNO-B1 | | |
| 176.6 | 12.5357 | -55.8172 | B=20.2, R2=19.3, i=18.9 | SSS | | |
| 176.6 | 12.4494 | -55.8463 | B=20.9 | SSS | | |
| 176.6 | 12.5123 | -55.8180 | B=21.9, R2=20.3 | SSS | | |
| 176.6 | 12.6104 | -55.8486 | Mag=20.29 | NED | | |
| 177.1 | 12.4437 | -55.8531 | Mag=20.29 | NED | | |
| 177.6 | 12.4837 | -55.9083 | Mag=20.29 | NED | | |
| 177.7 | 12.4496 | -55.8878 | Mag=19.6 | NED | | |
| 177.8 | 12.4425 | -55.8769 | Mag=19.3 | NED | | |
| 178.1 | 12.6164 | -55.8582 | B=22.1 | SSS | | |
| 178.6 | 12.4500 | -55.8880 | B=21.2, R2=19.4, i=19.2 | SSS | | |
| 178.9 | 12.4496 | -55.8877 | B2=20.5, I=18.9, R1=19.1, R2=19.5 | USNO-B1 | | |
| 179.4 | 12.6167 | -55.8708 | Mag=19.3 | NED | | |
| 180.0 | 12.4775 | -55.8247 | Mag=19.3 | NED | | |
| 181.0 | 12.4767 | -55.9067 | Mag=19.3 | NED | | |
| 181.1 | 12.5600 | -55.8186 | Mag=19.3 | NED | | |
| 181.1 | 12.6175 | -55.8567 | B=19.4, R2=17.9, i=17.6 | SSS | | |
| 182.6 | 12.6175 | -55.8578 | Mag=19.3 | NED | | |
| 182.8 | 12.4525 | -55.8933 | Mag=19.3 | NED | | |
| 182.9 | 12.5542 | -55.9144 | Mag=19.3 | NED | | |
| 183.0 | 12.5408 | -55.9165 | I=19.0, R1=19.6 | USNO-B1 | | |
| 183.5 | 12.6043 | -55.8949 | B=21.9, R2=20.1 | SSS | | |
| 184.0 | 12.4524 | -55.8934 | B=19.8, R2=18.2, i=17.7 | SSS | | |
| 184.9 | 12.5413 | -55.9167 | Mag=19.3 | NED | | |
| 185.8 | 12.6042 | -55.8950 | Mag=19.3 | NED | | |
| 185.9 | 12.4515 | -55.8937 | I=17.4, R1=19.6, R2=18.2 | USNO-B1 | | |
| 186.0 | 12.5288 | -55.9175 | Mag=19.3 | NED | | |
| 186.1 | 12.5875 | -55.8261 | Mag=19.4 | NED | | |
| 186.2 | 12.5878 | -55.8261 | B=21.2, R2=19.4 | SSS | | |
| 188.0 | 12.6004 | -55.8324 | B=20.6, R2=19.1, i=18.0 | SSS | | |
| 188.4 | 12.5833 | -55.9081 | Mag=19.4 | NED | | |
| 188.8 | 12.6004 | -55.8322 | Mag=18.8 | NED | | |
| 189.5 | 12.6079 | -55.8378 | Mag=18.8 | NED | | |
| 190.1 | 12.5204 | -55.9183 | Mag=18.8 | NED | | |
| 190.2 | 12.5962 | -55.9034 | B2=18.7, I=18.8, R1=18.4, R2=18.6 | USNO-B1 | | |
| 190.4 | 12.5304 | -55.9186 | Mag=18.8 | NED | | |
| 190.6 | 12.5787 | -55.9106 | Mag=18.8 | NED | | |
| 190.7 | 12.5536 | -55.9173 | R1=19.4, R2=20.1 | USNO-B1 | | |
| 190.7 | 12.4417 | -55.8465 | B=20.8 | SSS | | |
| 191.2 | 12.4525 | -55.8339 | Mag=18.8 | NED | | |
| 191.9 | 12.4563 | -55.8321 | B=21.8 | SSS | | |
| 192.2 | 12.6179 | -55.8839 | Mag=18.8 | NED | | |
| 192.6 | 12.5842 | -55.8222 | Mag=18.8 | NED | | |
| 192.6 | 12.4541 | -55.8333 | B2=20.5, R2=21.0 | USNO-B1 | | |
| 193.2 | 12.5967 | -55.9033 | Mag=18.8 | NED | | |
| 194.5 | 12.4804 | -55.8189 | Mag=18.8 | NED | | |
| 194.7 | 12.5326 | -55.9201 | B=22.5 | SSS | | |
| 195.6 | 12.5829 | -55.8208 | Mag=18.8 | NED | | |
| 195.9 | 12.6146 | -55.8921 | B2=20.9, R1=19.8, R2=20.8 | USNO-B1 | | |
| 196.7 | 12.5329 | -55.9203 | Mag=18.8 | NED | | |
| 196.8 | 12.4717 | -55.8214 | Mag=18.8 | NED | | |
| 197.5 | 12.6117 | -55.8944 | Mag=18.8 | NED | | |
| 197.9 | 12.5271 | -55.8108 | Mag=19.6 | NED | | |
| 198.0 | 12.5479 | -55.8119 | Mag=19.6 | NED | | |
| 198.2 | 12.6142 | -55.8389 | Mag=19.6 | NED | | |
| 199.3 | 12.4321 | -55.8536 | Mag=19.6 | NED | | |
| 199.4 | 12.5275 | -55.8107 | B=21.8, R2=20.2 | SSS | |
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