SOCRATES

Search Results


Search parameters:

  • Name(s): Top 100 by Time In
  • Order by Start Time
  • Return first 100 items


Data current as of 2021 Apr 20 08:06 UTC

Computation Interval: Start = 2021 Apr 20 00:00:00.000, Stop = 2021 Apr 27 00:00:00.000
Computation Threshold: 5.0 km
Considering: 6,820 Primaries, 20,625 Secondaries (49,169 Conjunctions)

See notes at bottom of page for data field descriptions

Re-sort results by Maximum Probability, Minimum Range.

Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
43234 O3B FM13 [+] 0.371 4.874E-07 0.774 2.759 0.002
44113 O3B FM19 [+] 0.371 2021 Apr 20 00:00:00.000 2021 Apr 20 00:02:56.605 2021 Apr 20 00:34:55.473
44207 TIANHUI 2-01A [+] -0.216 1.846E-04 0.036 0.155 0.001
44209 TIANHUI 2-01B [+] -0.204 2021 Apr 20 00:00:00.000 2021 Apr 20 00:03:32.291 2021 Apr 22 04:56:04.908
44484 AEROCUBE 10B (DOUGSAT) [+] 1.882 1.219E-06 0.449 1.903 0.002
44485 AEROCUBE 10A (JIMSAT) [+] 0.316 2021 Apr 20 00:00:00.000 2021 Apr 20 00:45:21.119 2021 Apr 21 11:40:11.857
47268 ONEWEB-0122 [+] -0.195 3.128E-06 0.283 1.177 0.003
47271 ONEWEB-0125 [+] -0.195 2021 Apr 20 00:00:00.000 2021 Apr 20 01:18:38.528 2021 Apr 20 03:13:07.003
47313 PROMETHEUS 2-11 [+] 0.113 7.346E-05 0.058 0.245 0.000
47345 PROMETHEUS 2-8 [+] 0.113 2021 Apr 20 00:00:00.000 2021 Apr 20 00:21:26.761 2021 Apr 22 11:17:53.397
47528 FLOCK 4S-14 [+] -0.116 9.061E-07 0.520 2.207 0.012
47529 LEMUR-2-CHANTAL [+] 0.083 2021 Apr 20 00:00:00.000 2021 Apr 20 00:00:00.000 2021 Apr 20 00:05:39.089
47531 KEPLER-9 (ARTEMIS) [+] 0.282 1.410E-06 0.426 1.731 0.009
47436 OBJECT Z [-] 0.348 2021 Apr 20 00:00:00.000 2021 Apr 20 00:03:45.954 2021 Apr 20 00:13:01.863
47649 STARLINK-2032 [+] -0.243 8.124E-06 0.174 0.737 0.004
47662 STARLINK-2052 [+] 0.090 2021 Apr 20 00:00:00.000 2021 Apr 20 00:09:39.116 2021 Apr 20 00:25:24.427
31698 TERRASAR-X [+] -0.100 2.245E-07 1.045 4.434 0.005
36605 TANDEM-X [+] 0.889 2021 Apr 20 00:00:00.000 2021 Apr 20 00:15:23.424 2021 Apr 20 00:47:02.576
46458 JILIN-01 GAOFEN 3F [+] -0.139 3.201E-07 1.209 2.692 13.698
47168 STARLINK-1885 [+] 0.083 2021 Apr 20 00:00:01.197 2021 Apr 20 00:00:01.504 2021 Apr 20 00:00:01.812
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
37941 YAOGAN 13 [+] -0.194 6.773E-08 3.289 4.672 15.209
43697 LEMUR-2-CHANUSIAK [+] 0.271 2021 Apr 20 00:00:01.338 2021 Apr 20 00:00:01.455 2021 Apr 20 00:00:01.572
43797 SKYSAT-C12 [+] 0.104 4.642E-07 1.083 2.070 14.459
46786 STARLINK-1893 [+] -0.073 2021 Apr 20 00:00:05.372 2021 Apr 20 00:00:05.687 2021 Apr 20 00:00:06.002
07433 COSMOS 676 [?] 0.080 1.332E-06 0.925 2.002 13.597
37487 COSMOS 2251 DEB [-] 0.512 2021 Apr 20 00:00:09.306 2021 Apr 20 00:00:09.643 2021 Apr 20 00:00:09.980
45053 STARLINK-1155 [+] 0.068 4.703E-07 0.888 2.491 12.084
46051 STARLINK-1540 [+] 0.231 2021 Apr 20 00:00:10.299 2021 Apr 20 00:00:10.658 2021 Apr 20 00:00:11.017
08845 METEOR 1-25 [?] 0.054 2.779E-06 1.766 2.497 14.841
30446 FENGYUN 1C DEB [-] -0.159 2021 Apr 20 00:00:11.362 2021 Apr 20 00:00:11.654 2021 Apr 20 00:00:11.946
28897 NCUBE-2 [-] 0.065 5.975E-07 0.745 2.336 10.780
35190 FENGYUN 1C DEB [-] 0.639 2021 Apr 20 00:00:33.090 2021 Apr 20 00:00:33.500 2021 Apr 20 00:00:33.910
45379 STARLINK-1319 [+] 0.184 3.733E-07 1.039 2.685 12.737
47961 OBJECT AF [-] -0.244 2021 Apr 20 00:00:54.462 2021 Apr 20 00:00:54.793 2021 Apr 20 00:00:55.124
24873 IRIDIUM 921 [-] 0.411 4.060E-07 0.814 3.150 6.586
47473 FLOCK 4S-35 [+] 0.213 2021 Apr 20 00:01:12.255 2021 Apr 20 00:01:12.844 2021 Apr 20 00:01:13.434
39090 STRAND-1 [+] -0.121 1.815E-07 1.192 4.808 4.925
36262 FENGYUN 1C DEB [-] 0.719 2021 Apr 20 00:01:19.865 2021 Apr 20 00:01:20.144 2021 Apr 20 00:01:20.422
42963 IRIDIUM 139 [+] 0.049 1.701E-07 1.246 4.907 5.906
29760 FENGYUN 1C DEB [-] -0.020 2021 Apr 20 00:01:24.338 2021 Apr 20 00:01:24.500 2021 Apr 20 00:01:24.662
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
46034 STARLINK-1557 [+] -0.007 6.016E-07 0.670 2.582 6.728
43835 OBJECT E [-] -0.090 2021 Apr 20 00:01:25.623 2021 Apr 20 00:01:26.259 2021 Apr 20 00:01:26.896
37189 GLOBALSTAR M074 [+] 0.315 5.665E-07 0.928 1.979 13.121
44987 COSMOS 2491 DEB [-] 0.320 2021 Apr 20 00:01:42.412 2021 Apr 20 00:01:42.762 2021 Apr 20 00:01:43.112
16791 COSMOS 1758 [?] -0.073 1.862E-07 1.174 4.759 4.767
45701 STARLINK-1403 [+] -0.074 2021 Apr 20 00:01:45.325 2021 Apr 20 00:01:45.647 2021 Apr 20 00:01:45.969
44358 FORMOSAT 7-5 [+] 0.306 1.642E-06 0.855 3.602 1.879
20303 DELTA 2 R/B(1) [-] 0.168 2021 Apr 20 00:02:01.747 2021 Apr 20 00:02:03.593 2021 Apr 20 00:02:05.439
40302 TSUBAME [-] -0.164 4.051E-07 0.817 3.144 6.793
41557 NUSAT-1 (FRESCO) [+] -0.227 2021 Apr 20 00:02:16.075 2021 Apr 20 00:02:16.648 2021 Apr 20 00:02:17.220
39092 UNIBRITE [-] 0.120 7.347E-08 2.966 4.775 14.592
34869 IRIDIUM 33 DEB [-] 0.055 2021 Apr 20 00:02:21.770 2021 Apr 20 00:02:21.872 2021 Apr 20 00:02:21.974
07663 COSMOS 708 [?] 0.376 1.038E-07 2.421 4.267 13.946
25364 COSMOS 2353 [?] 0.037 2021 Apr 20 00:02:57.579 2021 Apr 20 00:02:57.766 2021 Apr 20 00:02:57.953
46277 NEMO-HD [+] -0.230 5.200E-07 0.692 2.892 0.016
46737 FLOCK 4V-23 [+] -0.149 2021 Apr 20 00:03:26.642 2021 Apr 20 00:07:42.792 2021 Apr 20 00:11:51.417
40988 TIANHUI 1-03 [+] -0.214 1.388E-07 2.054 3.650 15.438
45840 FREGAT DEB [-] 0.815 2021 Apr 20 00:03:29.769 2021 Apr 20 00:03:29.991 2021 Apr 20 00:03:30.212
41731 QSS (MOZI) [+] -0.213 7.787E-08 2.691 4.964 14.569
44085 LEMUR-2-BEAUDACIOUS [+] 0.087 2021 Apr 20 00:03:43.479 2021 Apr 20 00:03:43.520 2021 Apr 20 00:03:43.561
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
43065 GCOM-C (SHIKISAI) [+] -0.189 1.429E-07 1.612 4.516 11.853
42251 SL-16 DEB [-] 0.157 2021 Apr 20 00:03:48.460 2021 Apr 20 00:03:48.641 2021 Apr 20 00:03:48.822
31121 SAUDICOMSAT 6 [+] 0.129 2.109E-06 0.349 1.412 4.822
22435 SL-16 DEB [-] 1.019 2021 Apr 20 00:03:58.138 2021 Apr 20 00:03:59.132 2021 Apr 20 00:04:00.127
44229 HARBINGER (ICEYE-X3) [+] 0.263 4.222E-07 1.104 2.234 14.190
47718 OBJECT U [-] 0.098 2021 Apr 20 00:03:58.572 2021 Apr 20 00:03:58.887 2021 Apr 20 00:03:59.203
46586 STARLINK-1737 [+] -0.080 4.528E-07 0.979 2.346 13.267
48085 OBJECT AP [-] -0.186 2021 Apr 20 00:04:04.348 2021 Apr 20 00:04:04.681 2021 Apr 20 00:04:05.014
22626 COSMOS 2242 [?] -0.185 1.077E-07 2.600 3.717 15.109
42845 LEMUR-2-ZACHARY [+] 0.084 2021 Apr 20 00:04:10.836 2021 Apr 20 00:04:11.057 2021 Apr 20 00:04:11.278
24944 IRIDIUM 29 [-] 0.111 1.779E-06 1.659 3.033 14.282
39645 COSMOS 1867 COOLANT [-] -0.007 2021 Apr 20 00:04:20.740 2021 Apr 20 00:04:21.018 2021 Apr 20 00:04:21.297
43118 CORVUS BC3 [+] -0.181 3.198E-07 0.927 3.514 7.222
45802 CZ-2D DEB [-] -0.113 2021 Apr 20 00:04:47.429 2021 Apr 20 00:04:47.921 2021 Apr 20 00:04:48.414
42032 FLOCK 3P-47 [+] 0.147 8.026E-07 0.568 2.281 5.242
42998 FLOCK 3M-2 [+] 0.148 2021 Apr 20 00:04:49.918 2021 Apr 20 00:04:50.767 2021 Apr 20 00:04:51.615
45369 STARLINK-1277 [+] 0.317 4.427E-07 0.953 2.466 12.738
47957 OBJECT AB [-] -0.185 2021 Apr 20 00:04:51.216 2021 Apr 20 00:04:51.558 2021 Apr 20 00:04:51.899
05117 COSMOS 405 [?] 0.179 5.961E-07 0.714 2.443 9.592
40594 YAOGAN 26 DEB [-] -0.051 2021 Apr 20 00:04:54.707 2021 Apr 20 00:04:55.162 2021 Apr 20 00:04:55.616
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
39057 COSMOS 2482 [+] 0.224 4.307E-07 1.141 2.118 13.359
08299 THORAD DELTA 1 DEB [-] -0.096 2021 Apr 20 00:05:07.871 2021 Apr 20 00:05:08.210 2021 Apr 20 00:05:08.549
20439 PACSAT (AO-16) [-] 0.114 5.709E-08 2.255 3.915 14.420
24974 SL-8 DEB [-] 0.597 2021 Apr 20 00:05:22.521 2021 Apr 20 00:05:22.737 2021 Apr 20 00:05:22.952
43737 CICERO 8 [+] 0.146 1.468E-07 2.017 3.515 14.776
48059 ONEWEB-0148 [+] 0.087 2021 Apr 20 00:05:31.200 2021 Apr 20 00:05:31.441 2021 Apr 20 00:05:31.681
46286 FLOCK 4V-14 [+] -0.137 3.344E-07 1.311 2.375 14.558
46697 STARLINK-1796 [+] -0.027 2021 Apr 20 00:05:41.226 2021 Apr 20 00:05:41.529 2021 Apr 20 00:05:41.831
22783 TEMISAT [?] 0.093 3.043E-08 3.178 4.566 14.725
37907 FENGYUN 1C DEB [-] 1.083 2021 Apr 20 00:06:32.512 2021 Apr 20 00:06:32.651 2021 Apr 20 00:06:32.789
47654 STARLINK-2038 [+] -0.162 2.335E-07 1.122 3.971 8.889
34398 COSMOS 2251 DEB [-] -0.214 2021 Apr 20 00:06:38.951 2021 Apr 20 00:06:39.293 2021 Apr 20 00:06:39.635
18010 USA 24 [?] -0.200 7.879E-08 2.750 4.646 14.810
01433 DELTA 1 R/B [-] -0.198 2021 Apr 20 00:06:42.860 2021 Apr 20 00:06:42.985 2021 Apr 20 00:06:43.109
02176 OPS 0082 (TRANSIT 13) [?] 0.136 1.333E-07 3.043 4.555 14.830
30359 FENGYUN 1C DEB [-] 0.405 2021 Apr 20 00:06:59.638 2021 Apr 20 00:06:59.777 2021 Apr 20 00:06:59.916
41997 LEMUR-2-NOGUECORREIG [+] 0.093 3.537E-07 1.386 2.123 15.073
43894 FLOCK 3K-1 [+] 0.333 2021 Apr 20 00:07:20.023 2021 Apr 20 00:07:20.324 2021 Apr 20 00:07:20.624
41187 ORBCOMM FM108 [+] -0.171 1.310E-07 2.078 3.823 14.345
47099 FENGYUN 1C DEB [-] 0.413 2021 Apr 20 00:07:30.797 2021 Apr 20 00:07:31.022 2021 Apr 20 00:07:31.247
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
43861 TOMSAT EAGLESCOUT [+] 0.116 1.017E-07 2.067 4.943 13.321
43942 LINGQUE 1A [+] -0.104 2021 Apr 20 00:07:34.525 2021 Apr 20 00:07:34.582 2021 Apr 20 00:07:34.638
26091 PICOSAT 3 [?] 0.150 2.887E-08 2.751 4.123 14.905
35032 COSMOS 2251 DEB [-] 0.089 2021 Apr 20 00:07:35.475 2021 Apr 20 00:07:35.665 2021 Apr 20 00:07:35.855
07683 COSMOS 716 [?] -0.107 1.998E-07 1.372 2.720 13.348
43320 SL-14 DEB [-] 5.344 2021 Apr 20 00:07:42.299 2021 Apr 20 00:07:42.613 2021 Apr 20 00:07:42.927
39132 DOVE 2 [-] -0.158 2.023E-07 1.213 4.239 9.119
44399 DOT-1 [+] 0.121 2021 Apr 20 00:07:47.513 2021 Apr 20 00:07:47.804 2021 Apr 20 00:07:48.095
21783 COSMOS 2169 [?] 0.141 1.145E-07 2.519 3.719 14.189
21972 DELTA 1 DEB [-] 0.895 2021 Apr 20 00:07:52.122 2021 Apr 20 00:07:52.357 2021 Apr 20 00:07:52.593
25395 FASAT B [?] 0.161 7.878E-07 0.527 1.522 11.560
35789 COSMOS 2251 DEB [-] 0.158 2021 Apr 20 00:08:06.151 2021 Apr 20 00:08:06.563 2021 Apr 20 00:08:06.975
43071 IRIDIUM 138 [+] 0.137 8.964E-08 2.850 4.068 14.866
42275 DMSP 5D-2 F13 DEB [-] -0.032 2021 Apr 20 00:08:25.219 2021 Apr 20 00:08:25.414 2021 Apr 20 00:08:25.610
46506 NETSAT-1 [+] 0.117 1.716E-07 1.219 4.975 4.383
47949 KEPLER-7 (C3PO) [+] 0.249 2021 Apr 20 00:08:30.233 2021 Apr 20 00:08:30.347 2021 Apr 20 00:08:30.462
46124 STARLINK-1614 [+] -0.033 1.018E-06 0.766 1.334 14.672
43839 OBJECT J [-] -0.085 2021 Apr 20 00:08:42.491 2021 Apr 20 00:08:42.819 2021 Apr 20 00:08:43.148
25113 ORBCOMM FM10 [+] 0.151 6.595E-07 1.084 4.307 5.557
35718 COSMOS 2251 DEB [-] 0.354 2021 Apr 20 00:08:44.198 2021 Apr 20 00:08:44.655 2021 Apr 20 00:08:45.113
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
41996 LEMUR-2-TACHIKOMA [+] 0.105 5.108E-07 0.816 2.495 11.222
43521 CZ-2C R/B [-] 0.379 2021 Apr 20 00:08:59.932 2021 Apr 20 00:09:00.318 2021 Apr 20 00:09:00.704
45084 STARLINK-1173 [+] 0.109 5.277E-07 1.000 1.972 14.234
43836 OBJECT F [-] -0.090 2021 Apr 20 00:09:11.809 2021 Apr 20 00:09:12.132 2021 Apr 20 00:09:12.455
40091 ORBCOMM FM103 [+] 0.093 2.121E-07 1.232 3.983 10.365
18517 COSMOS 374 DEB [-] 0.079 2021 Apr 20 00:09:20.287 2021 Apr 20 00:09:20.579 2021 Apr 20 00:09:20.870
43126 LEMUR-2-DAVEWILSON [+] 0.070 3.679E-07 1.355 2.089 15.085
38156 FENGYUN 1C DEB [-] 0.883 2021 Apr 20 00:09:31.812 2021 Apr 20 00:09:32.113 2021 Apr 20 00:09:32.414
47438 UVSQ-SAT [+] 0.153 6.147E-08 3.407 4.968 15.127
33772 IRIDIUM 33 DEB [-] 0.334 2021 Apr 20 00:10:22.005 2021 Apr 20 00:10:22.042 2021 Apr 20 00:10:22.079
45392 STARLINK-1290 [+] 0.161 2.648E-07 1.163 3.377 11.746
46162 STARLINK-1603 [+] -0.062 2021 Apr 20 00:11:17.995 2021 Apr 20 00:11:18.309 2021 Apr 20 00:11:18.623
20788 FENGYUN 1B [-] 0.053 3.198E-06 0.763 3.054 5.188
30661 FENGYUN 1C DEB [-] 0.617 2021 Apr 20 00:11:19.115 2021 Apr 20 00:11:19.878 2021 Apr 20 00:11:20.642
43678 DIWATA-2B [+] -0.089 1.489E-07 2.222 3.146 15.106
36903 METEOR 2-5 DEB [-] 0.860 2021 Apr 20 00:11:19.599 2021 Apr 20 00:11:19.856 2021 Apr 20 00:11:20.114
43929 IRIDIUM 171 [+] 0.085 6.753E-07 0.661 2.331 8.801
40496 DMSP 5D-2 F13 DEB [-] 0.226 2021 Apr 20 00:11:43.231 2021 Apr 20 00:11:43.733 2021 Apr 20 00:11:44.236
33591 NOAA 19 [+] -0.173 8.369E-08 2.960 4.195 14.838
36320 METEOR 2-8 DEB [-] 0.137 2021 Apr 20 00:12:18.486 2021 Apr 20 00:12:18.669 2021 Apr 20 00:12:18.852
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
43876 KANOPUS-V 5 [+] -0.099 2.785E-07 1.402 2.664 14.406
45801 CZ-2D DEB [-] 0.440 2021 Apr 20 00:12:44.394 2021 Apr 20 00:12:44.688 2021 Apr 20 00:12:44.981
03891 SECOR 13 (EGRS 13) [?] 0.367 9.331E-08 1.029 4.264 3.391
42646 DELTA 1 DEB [-] 0.693 2021 Apr 20 00:12:48.414 2021 Apr 20 00:12:49.184 2021 Apr 20 00:12:49.954
38709 EXACTVIEW-1 (ADS-1B) [+] -0.157 1.745E-07 1.323 4.507 9.384
36092 CZ-2C DEB [-] 0.110 2021 Apr 20 00:13:01.722 2021 Apr 20 00:13:01.953 2021 Apr 20 00:13:02.183
45365 STARLINK-1317 [+] 0.093 1.580E-07 1.470 4.479 11.210
47144 STARLINK-1857 [+] -0.241 2021 Apr 20 00:13:36.334 2021 Apr 20 00:13:36.533 2021 Apr 20 00:13:36.731
44423 COSMOS 2537 [+] -0.087 2.294E-07 1.729 2.624 14.930
35678 IRIDIUM 33 DEB [-] 0.121 2021 Apr 20 00:13:53.290 2021 Apr 20 00:13:53.575 2021 Apr 20 00:13:53.860
07816 OPS 6226 (DMSP 5C F7) [-] 0.227 1.647E-07 1.423 4.440 10.664
12746 COSMOS 1275 DEB [-] 0.228 2021 Apr 20 00:14:13.246 2021 Apr 20 00:14:13.462 2021 Apr 20 00:14:13.678
22489 OXP 1 [?] 0.805 3.539E-07 1.070 2.750 12.593
04820 THORAD AGENA D DEB [-] 0.135 2021 Apr 20 00:14:21.630 2021 Apr 20 00:14:21.961 2021 Apr 20 00:14:22.293
08845 METEOR 1-25 [?] 0.064 1.023E-06 2.910 4.115 14.853
33619 FENGYUN 1C DEB [-] 0.079 2021 Apr 20 00:14:35.138 2021 Apr 20 00:14:35.329 2021 Apr 20 00:14:35.520
00162 TIROS 3 [-] 0.137 8.438E-08 2.351 4.325 14.377
30044 FENGYUN 1C DEB [-] 0.106 2021 Apr 20 00:14:43.605 2021 Apr 20 00:14:43.780 2021 Apr 20 00:14:43.954
43258 IRIDIUM 143 [+] -0.159 9.104E-07 0.811 1.408 14.500
31179 FENGYUN 1C DEB [-] 2.150 2021 Apr 20 00:14:56.598 2021 Apr 20 00:14:56.928 2021 Apr 20 00:14:57.259
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
46169 STARLINK-1628 [+] 0.488 2.542E-07 1.097 3.731 9.625
47352 STARLINK-2034 [+] 0.094 2021 Apr 20 00:15:33.278 2021 Apr 20 00:15:33.624 2021 Apr 20 00:15:33.970
40137 CHUANGXIN 1-04 (CX-1-04) [+] -0.219 4.934E-07 1.122 1.880 14.541
39664 COSMOS 1867 COOLANT [-] 0.325 2021 Apr 20 00:15:36.970 2021 Apr 20 00:15:37.289 2021 Apr 20 00:15:37.607
46360 STARLINK-1713 [+] 0.444 1.946E-07 1.415 3.780 12.488
35735 IRIDIUM 33 DEB [-] 0.191 2021 Apr 20 00:15:51.199 2021 Apr 20 00:15:51.461 2021 Apr 20 00:15:51.723
45709 STARLINK-1421 [+] -0.027 2.000E-07 1.156 4.500 6.415
27657 PSLV DEB [-] 0.139 2021 Apr 20 00:16:01.096 2021 Apr 20 00:16:01.436 2021 Apr 20 00:16:01.776
17191 COSMOS 1805 [?] 0.114 2.395E-07 1.142 3.805 9.961
46454 JILIN-01 GAOFEN 3B [+] -0.100 2021 Apr 20 00:16:04.934 2021 Apr 20 00:16:05.260 2021 Apr 20 00:16:05.585
27939 MOZHAYETS 4 (RS-22) [+] -0.053 1.425E-07 2.092 3.489 14.695
34367 IRIDIUM 33 DEB [-] -0.049 2021 Apr 20 00:16:15.757 2021 Apr 20 00:16:16.001 2021 Apr 20 00:16:16.244
46234 OBJECT C [+] -0.110 6.484E-08 3.354 4.784 15.216
48060 ONEWEB-0160 [+] 0.095 2021 Apr 20 00:16:21.558 2021 Apr 20 00:16:21.653 2021 Apr 20 00:16:21.749
25991 DMSP 5D-3 F15 (USA 147) [B] -0.210 6.527E-07 0.720 2.213 10.876
42368 NOAA 16 DEB [-] 0.586 2021 Apr 20 00:17:06.404 2021 Apr 20 00:17:06.816 2021 Apr 20 00:17:07.229
12785 COSMOS 1300 [?] 0.219 1.042E-06 0.837 1.194 15.162
31298 FENGYUN 1C DEB [-] -0.019 2021 Apr 20 00:17:12.015 2021 Apr 20 00:17:12.336 2021 Apr 20 00:17:12.656
43187 S-NET B [+] 0.017 4.828E-07 0.713 3.024 0.006
43188 S-NET A [+] 0.217 2021 Apr 20 00:17:19.474 2021 Apr 20 00:31:05.846 2021 Apr 20 00:44:49.648
Action NORAD
Catalog
Number
Name Days
Since
Epoch
Max
Probability
Dilution
Threshold
(km)
Min
Range
(km)
Relative
Velocity
(km/sec)
Start
(UTC)
TCA
(UTC)
Stop
(UTC)
41978 FLOCK 3P-57 [+] -0.136 1.075E-07 2.518 3.843 15.082
43908 LUME 1 [+] 0.234 2021 Apr 20 00:17:39.776 2021 Apr 20 00:17:39.988 2021 Apr 20 00:17:40.200
41875 GOKTURK 1A [+] -0.116 4.760E-07 1.121 1.950 14.537
10525 SL-8 DEB [-] -0.122 2021 Apr 20 00:17:39.855 2021 Apr 20 00:17:40.172 2021 Apr 20 00:17:40.488
14617 COSMOS 1528 [?] 0.085 2.309E-07 0.981 2.206 12.831
16761 COSMOS 1751 [?] -0.165 2021 Apr 20 00:17:54.876 2021 Apr 20 00:17:55.226 2021 Apr 20 00:17:55.575
39422 STSAT-3 [+] -0.087 1.016E-07 2.154 4.746 13.720
30180 FENGYUN 1C DEB [-] 0.324 2021 Apr 20 00:18:31.503 2021 Apr 20 00:18:31.617 2021 Apr 20 00:18:31.732
07736 COSMOS 726 [?] 0.380 8.731E-05 0.203 0.611 10.976
09638 SL-8 R/B [-] 0.092 2021 Apr 20 00:18:44.714 2021 Apr 20 00:18:45.166 2021 Apr 20 00:18:45.618
43077 IRIDIUM 141 [+] 0.189 6.641E-08 3.138 4.994 14.649
44528 ZY-1 02D [+] -0.085 2021 Apr 20 00:19:17.115 2021 Apr 20 00:19:17.132 2021 Apr 20 00:19:17.149
45053 STARLINK-1155 [+] 0.081 2.443E-07 1.012 4.211 3.118
46673 STARLINK-1717 [+] -0.048 2021 Apr 20 00:19:24.749 2021 Apr 20 00:19:25.614 2021 Apr 20 00:19:26.479
46159 STARLINK-1595 [+] 0.447 4.062E-07 0.779 3.288 1.605
47140 STARLINK-1853 [+] 0.014 2021 Apr 20 00:19:44.794 2021 Apr 20 00:19:47.141 2021 Apr 20 00:19:49.488
43932 RAPIS-1 [+] 0.189 1.142E-06 0.576 1.582 12.253
46562 STARLINK-1714 [+] 0.115 2021 Apr 20 00:19:47.927 2021 Apr 20 00:19:48.314 2021 Apr 20 00:19:48.701
45446 ONEWEB-0068 [+] -0.055 1.446E-07 1.669 4.312 12.145
35180 FENGYUN 1C DEB [-] 0.315 2021 Apr 20 00:19:49.594 2021 Apr 20 00:19:49.803 2021 Apr 20 00:19:50.011

100 records found

Data Fields:
  • Action: The TLE Data button links to a page which provides the TLEs used to generate the associated prediction.
  • NORAD Catalog Number: NORAD Catalog Numbers of the two conjuncting objects.
  • Name: Common names of the two conjuncting objects. Operational status of each object is shown in brackets, using the standard CelesTrak SATCAT codes.
  • Days Since Epoch: The number of days from the epoch of the NORAD two-line element set or operator ephemerides (green) used to produce the prediction until the time of closest approach for the conjunction.
  • Max Probability: Given fixed spherical object radii and relative distance at the time of closest approach (TCA), the projected covariance ellipse is sized and oriented to produce the maximum probability. For these reports the ratio of major-to-minor axes of the projected covariance ellipse is set using radial, in-track, and cross-track values of 100 m, 300 m, 100 m, respectively. If the combined object radius is greater than the relative distance, the maximum probability will be one; such occurrences are not addressed here.
  • Dilution Threshold (km): The standard deviation that produces the maximum probability defines the threshold of dilution. A smaller or larger standard deviation will produce a smaller probability. In the case of computing true probability with a smaller standard deviation, the data is of sufficient quality to associate low probability with low risk. For a larger standard deviation, this is not the case and the resulting true probability calculation becomes "diluted." If operating in this dilution region, the recommendation is to obtain better data and reassess the encounter. If time or resources do not permit, then the maximum probability should be used in place of the true probability.
  • Min Range (km): The distance between the two conjuncting objects at the time of closest approach.
  • Start (UTC): Time when the two conjuncting objects come within the computation threshold from each other.
  • TCA (UTC): Time of closest approach.
  • Stop (UTC): Time when the two conjuncting objects move beyond the computation threshold from each other.
  • Relative Velocity (km/sec): Relative velocity of the two conjuncting objects at the time of closest approach.