SOCRATES

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CelesTrak

Search parameters:

  • Name(s): Top 10 by Minimum Range
  • Order by Minimum Range
  • Return first 10 items


Data current as of 2022 Oct 01 16:05 UTC

Computation Interval: Start = 2022 Oct 01 12:00:00.000, Stop = 2022 Oct 08 12:00:00.000
Computation Threshold: 5.0 km
Considering: 9,452 Primaries, 23,797 Secondaries (121,326 Conjunctions)

See notes at bottom of page for data field descriptions

Re-sort results by Maximum Probability, 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)
45377 STARLINK-1305 [+] 5.521 3.833E-01 0.001 0.002 4.642
48652 STARLINK-2727 [+] 5.526 2022 Oct 07 01:23:57.189 2022 Oct 07 01:23:58.266 2022 Oct 07 01:23:59.343
45378 STARLINK-1310 [+] 2.137 2.323E-01 0.001 0.003 4.643
48655 STARLINK-2657 [+] 2.142 2022 Oct 03 15:55:38.783 2022 Oct 03 15:55:39.860 2022 Oct 03 15:55:40.937
42039 FLOCK 3P-15 [-] 4.878 5.856E-03 0.011 0.016 15.223
50715 COSMOS 1408 DEB [-] 4.923 2022 Oct 06 01:15:34.782 2022 Oct 06 01:15:35.110 2022 Oct 06 01:15:35.439
46331 STARLINK-1719 [+] 5.886 1.311E-02 0.004 0.018 4.605
47663 STARLINK-2053 [+] 5.957 2022 Oct 07 01:06:41.209 2022 Oct 07 01:06:42.295 2022 Oct 07 01:06:43.380
46533 STARLINK-1648 [+] 2.270 1.186E-02 0.005 0.019 4.594
48578 STARLINK-2232 [+] 2.673 2022 Oct 03 19:31:52.941 2022 Oct 03 19:31:54.030 2022 Oct 03 19:31:55.118
18958 COSMOS 1933 [?] 7.549 3.730E-03 0.012 0.024 14.002
46331 STARLINK-1719 [+] 7.030 2022 Oct 08 04:34:43.800 2022 Oct 08 04:34:44.157 2022 Oct 08 04:34:44.514
51740 STARLINK-3500 [+] 7.307 5.317E-03 0.007 0.027 6.982
51966 STARLINK-3699 [+] 7.365 2022 Oct 08 02:11:43.340 2022 Oct 08 02:11:44.056 2022 Oct 08 02:11:44.772
46501 LEMUR-2-DAYWZAGOODDAY [+] 3.117 2.296E-03 0.016 0.028 14.656
53157 STARLINK-4093 [+] 2.172 2022 Oct 03 18:08:02.049 2022 Oct 03 18:08:02.391 2022 Oct 03 18:08:02.732
47662 STARLINK-2052 [+] 6.421 5.542E-03 0.007 0.028 4.147
48696 STARLINK-2753 [+] 5.753 2022 Oct 07 04:21:13.158 2022 Oct 07 04:21:14.363 2022 Oct 07 04:21:15.569
25397 TECHSAT 1B (GO-32) [P] 1.423 2.622E-03 0.007 0.029 3.506
37390 PSLV R/B [-] 0.698 2022 Oct 02 06:22:15.027 2022 Oct 02 06:22:16.453 2022 Oct 02 06:22:17.879

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.