SOCRATES

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CelesTrak

Search parameters:

  • Name(s): Top 10 by Maximum Probability
  • Order by Maximum Probability
  • Return first 10 items


Data current as of 2022 Jan 20 16:08 UTC

Computation Interval: Start = 2022 Jan 20 12:00:00.000, Stop = 2022 Jan 27 12:00:00.000
Computation Threshold: 5.0 km
Considering: 7,770 Primaries, 23,165 Secondaries (79,789 Conjunctions)

See notes at bottom of page for data field descriptions

Re-sort results by Minimum Range, Time In.

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)
47157 STARLINK-1871 [+] 5.521 1.506E-01 0.001 0.005 4.150
47864 STARLINK-2304 [+] 5.725 2022 Jan 25 13:57:44.823 2022 Jan 25 13:57:46.027 2022 Jan 25 13:57:47.232
45589 STARLINK-1364 [+] 3.663 4.238E-02 0.002 0.010 4.646
47402 STARLINK-2124 [+] 3.668 2022 Jan 23 19:51:34.523 2022 Jan 23 19:51:35.599 2022 Jan 23 19:51:36.675
49203 ONEWEB-0337 [+] 3.846 2.552E-02 0.005 0.008 14.723
46508 RESURS O1 DEB [-] 5.339 2022 Jan 24 10:18:25.613 2022 Jan 24 10:18:25.953 2022 Jan 24 10:18:26.292
46123 STARLINK-1605 [+] 7.246 1.158E-02 0.005 0.019 4.645
47837 STARLINK-2427 [+] 7.251 2022 Jan 27 02:03:38.853 2022 Jan 27 02:03:39.930 2022 Jan 27 02:03:41.006
20736 COSMOS 2091 [?] 7.061 1.055E-02 0.007 0.015 12.819
37740 GLOBALSTAR M088 [+] 6.957 2022 Jan 26 13:29:40.899 2022 Jan 26 13:29:41.289 2022 Jan 26 13:29:41.679
45225 STARLINK-1215 [+] 4.194 9.322E-03 0.005 0.021 4.149
46757 STARLINK-1926 [+] 3.867 2022 Jan 24 05:44:59.069 2022 Jan 24 05:45:00.274 2022 Jan 24 05:45:01.479
45062 STARLINK-1171 [+] 6.592 8.165E-03 0.006 0.021 9.631
47406 STARLINK-2133 [+] 6.843 2022 Jan 26 10:04:50.637 2022 Jan 26 10:04:51.156 2022 Jan 26 10:04:51.676
45701 STARLINK-1403 [+] 3.005 7.624E-03 0.006 0.023 4.647
48297 STARLINK-2544 [+] 3.464 2022 Jan 23 03:42:19.214 2022 Jan 23 03:42:20.290 2022 Jan 23 03:42:21.366
45182 STARLINK-1201 [+] 7.374 7.411E-03 0.006 0.022 9.632
47891 STARLINK-2351 [+] 7.653 2022 Jan 27 11:20:44.295 2022 Jan 27 11:20:44.814 2022 Jan 27 11:20:45.333
08473 COSMOS 785 [?] 5.779 6.574E-03 0.027 0.066 12.712
08710 N-1 R/B [-] 6.312 2022 Jan 26 06:08:15.375 2022 Jan 26 06:08:15.769 2022 Jan 26 06:08:16.162

10 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.