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 Aug 09 16:05 UTC

Computation Interval: Start = 2022 Aug 09 12:00:00.000, Stop = 2022 Aug 16 12:00:00.000
Computation Threshold: 5.0 km
Considering: 8,966 Primaries, 23,569 Secondaries (94,403 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)
17369 COSMOS 1818 [?] 2.145 6.297E-02 0.021 0.071 8.917
35233 FENGYUN 1C DEB [-] 2.548 2022 Aug 11 05:41:32.437 2022 Aug 11 05:41:32.998 2022 Aug 11 05:41:33.558
47580 STARLINK-1982 [+] 5.255 6.071E-02 0.002 0.008 4.647
47627 STARLINK-1972 [+] 4.995 2022 Aug 13 19:40:54.286 2022 Aug 13 19:40:55.362 2022 Aug 13 19:40:56.438
22823 SPOT 3 [-] 4.213 9.290E-03 0.040 0.057 14.862
29293 METEOR 2-5 DEB [-] 4.622 2022 Aug 13 13:17:18.986 2022 Aug 13 13:17:19.322 2022 Aug 13 13:17:19.658
52333 STARLINK-3847 [+] 4.559 6.580E-03 0.006 0.024 6.981
52602 STARLINK-4012 [+] 3.892 2022 Aug 13 11:24:23.514 2022 Aug 13 11:24:24.230 2022 Aug 13 11:24:24.946
47876 STARLINK-2332 [+] 5.751 6.409E-03 0.007 0.025 6.926
48481 STARLINK-2706 [+] 5.959 2022 Aug 15 07:42:58.137 2022 Aug 15 07:42:58.859 2022 Aug 15 07:42:59.581
26113 IMAGE [P] 8.322 6.147E-03 1.193 4.433 7.778
35203 FENGYUN 1C DEB [-] 6.247 2022 Aug 14 10:00:09.931 2022 Aug 14 10:00:10.229 2022 Aug 14 10:00:10.526
46069 STARLINK-1533 [+] 6.393 5.513E-03 0.007 0.025 9.647
47738 STARLINK-2149 [+] 6.777 2022 Aug 15 18:24:48.448 2022 Aug 15 18:24:48.966 2022 Aug 15 18:24:49.485
27607 SAUDISAT 1C (SO-50) [+] 2.428 5.338E-03 0.010 0.019 14.566
43809 CENTAURI-1 [+] 2.048 2022 Aug 10 17:03:22.440 2022 Aug 10 17:03:22.783 2022 Aug 10 17:03:23.126
06256 METEOR 1-13 [?] 5.415 5.217E-03 0.039 0.060 14.666
30701 FENGYUN 1C DEB [-] 5.040 2022 Aug 14 10:54:28.935 2022 Aug 14 10:54:29.276 2022 Aug 14 10:54:29.617
53243 STARLINK-4047 [+] 2.609 5.086E-03 0.007 0.029 0.006
53245 STARLINK-4124 [+] 2.609 2022 Aug 11 18:25:59.114 2022 Aug 11 18:37:00.369 2022 Aug 11 18:48:05.035

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.