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 Nov 28 00:05 UTC

Computation Interval: Start = 2022 Nov 28 00:00:00.000, Stop = 2022 Dec 05 00:00:00.000
Computation Threshold: 5.0 km
Considering: 9,640 Primaries, 23,466 Secondaries (98,306 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)
46028 STARLINK-1523 [+] 6.251 2.474E-01 0.001 0.003 4.645
48290 STARLINK-2540 [+] 6.455 2022 Dec 04 00:01:55.036 2022 Dec 04 00:01:56.112 2022 Dec 04 00:01:57.189
53357 PRC TEST SPACECRAFT2 [+] 0.353 1.587E-01 0.001 0.005 0.000
54218 OBJECT J [-] 0.755 2022 Nov 28 00:00:00.000 2022 Nov 28 01:11:29.321 2022 Dec 05 00:00:00.000
52112 STARLINK-3734 [+] 7.234 9.498E-02 0.002 0.006 4.656
52842 STARLINK-4046 [+] 7.438 2022 Dec 04 20:08:03.108 2022 Dec 04 20:08:04.181 2022 Dec 04 20:08:05.255
45191 STARLINK-1236 [+] 6.514 7.272E-02 0.002 0.007 6.962
46759 STARLINK-1833 [+] 6.523 2022 Dec 03 21:14:58.985 2022 Dec 03 21:14:59.703 2022 Dec 03 21:15:00.422
44964 STARLINK-1086 [+] 5.859 2.133E-02 0.004 0.013 6.965
46340 STARLINK-1759 [+] 5.652 2022 Dec 03 03:42:49.228 2022 Dec 03 03:42:49.946 2022 Dec 03 03:42:50.663
47559 STARLINK-1958 [+] 2.602 2.039E-02 0.004 0.014 4.646
48009 STARLINK-2153 [+] 2.739 2022 Nov 30 01:20:37.999 2022 Nov 30 01:20:39.075 2022 Nov 30 01:20:40.152
46578 STARLINK-1683 [+] 7.182 1.611E-02 0.004 0.016 0.525
48431 STARLINK-2700 [+] 7.182 2022 Dec 04 15:05:19.424 2022 Dec 04 15:05:28.952 2022 Dec 04 15:05:38.480
45234 STARLINK-1243 [+] 6.952 1.603E-02 0.004 0.016 4.634
48300 STARLINK-2538 [+] 6.748 2022 Dec 04 10:51:36.271 2022 Dec 04 10:51:37.350 2022 Dec 04 10:51:38.429
25163 GLOBALSTAR M004 [-] 2.070 9.808E-03 0.021 0.077 7.209
22652 SL-14 R/B [-] 1.989 2022 Nov 29 12:25:47.891 2022 Nov 29 12:25:48.585 2022 Nov 29 12:25:49.278
39432 ICUBE-1 [-] 4.108 7.750E-03 0.008 0.016 14.167
34013 COSMOS 2251 DEB [-] 4.372 2022 Dec 01 13:15:34.408 2022 Dec 01 13:15:34.761 2022 Dec 01 13:15:35.114

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.