Encounters


As a service to the satellite operator community, the Center for Space Standards & Innovation (CSSI) offers SOCRATES-Satellite Orbital Conjunction Reports Assessing Threatening Encounters in Space. This service provides regular information on pending conjunctions on orbit over the coming week.

Twice each day, CSSI runs a list of all satellite payloads on orbit against a list of all objects on orbit using the catalog of all unclassified NORAD two-line element sets (TLEs) releasable to the public to look for satellite conjunctions over the next seven days. Here you can find a list with amateur-radio related satellites.

CelesTrak SOCRATES, predicts the following Orbital Conjunction Threats

Data current as of 2017 Oct 08 16:05 UTC

Date        Time       SAT 1                    SAT 2                   Minimum Range         Probability     
--------------------------------------------------------------------------------------------------------------
2017 Oct 08 12:00 UTC  PROGRESS-MS 06         - SOYUZ-MS 06             0 m +/- 0 m           1.000E+00
2017 Oct 08 12:00 UTC  SOYUZ-MS 05            - SOYUZ-MS 06             0 m +/- 0 m           1.000E+00
2017 Oct 08 20:05 UTC  TIANTUO 2              - FLOCK 2K-45             99 m +/- 66 m         1.600E-04
2017 Oct 09 02:33 UTC  TERRASAR-X             - TANDEM-X                58 m +/- 14 m         1.320E-03
2017 Oct 09 21:28 UTC  JILIN-1-03             - IRIDIUM 33 DEB          96 m +/- 67 m         1.626E-04
2017 Oct 10 04:34 UTC  FLOCK 2K-38            - DELTA 2 R/B(1)          187 m +/- 55 m        4.948E-04
2017 Oct 10 06:16 UTC  CANX-7                 - IRIDIUM 33 DEB          83 m +/- 36 m         3.516E-04
2017 Oct 10 08:38 UTC  AISAT                  - COSMOS 2251 DEB         102 m +/- 69 m        1.478E-04
2017 Oct 10 16:30 UTC  FLOCK 3P-14            - LEMUR-2-LISASAURUS      85 m +/- 20 m         6.123E-04
2017 Oct 10 19:10 UTC  IRIDIUM 98             - ARIANE 40 R/B           243 m +/- 86 m        1.538E-03
2017 Oct 11 22:08 UTC  IRIDIUM 64             - ORBCOMM FM19            170 m +/- 57 m        1.438E-03
2017 Oct 13 03:48 UTC  COSMOS 1718            - AJISAI (EGS)            104 m +/- 42 m        3.739E-04
2017 Oct 13 16:15 UTC  NEOSSAT                - COSMOS 2251 DEB         86 m +/- 59 m         2.063E-04
2017 Oct 14 01:52 UTC  IRIDIUM 13             - UNIBRITE                113 m +/- 77 m        1.025E-03
2017 Oct 14 02:53 UTC  SWAS                   - LEMUR-2-MONSON          110 m +/- 49 m        1.940E-04
2017 Oct 15 07:23 UTC  FORTE                  - CZ-4 DEB                129 m +/- 86 m        1.036E-03

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