DK3WN SatBlog

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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 Apr 24 00:05 UTC

Date        Time       SAT 1                    SAT 2                   Minimum Range         Probability     
--------------------------------------------------------------------------------------------------------------
2017 Apr 24 00:00 UTC  CYGNUS OA-7            - SOYUZ MS-04             0 m +/- 0 m           1.000E+00
2017 Apr 24 00:00 UTC  PROGRESS-MS 05         - CYGNUS OA-7             0 m +/- 0 m           1.000E+00
2017 Apr 24 00:00 UTC  PROGRESS-MS 05         - SOYUZ MS-04             0 m +/- 0 m           1.000E+00
2017 Apr 24 00:00 UTC  SOYUZ-MS 03            - CYGNUS OA-7             0 m +/- 0 m           1.000E+00
2017 Apr 24 00:00 UTC  SOYUZ-MS 03            - SOYUZ MS-04             0 m +/- 0 m           1.000E+00
2017 Apr 24 10:53 UTC  ISS (ZARYA)            - CYGNUS OA-7             17 m +/- 4 m          4.428E-01
2017 Apr 24 10:53 UTC  ISS (ZARYA)            - SOYUZ MS-04             17 m +/- 4 m          4.428E-01
2017 Apr 25 09:08 UTC  NANOSAT 1B             - COSMOS 2251 DEB         98 m +/- 26 m         4.121E-04
2017 Apr 26 19:41 UTC  RHESSI                 - FENGYUN 1C DEB          118 m +/- 47 m        7.964E-04
2017 Apr 26 23:08 UTC  IRIDIUM 57             - IRIDIUM 64              234 m +/- 64 m        1.654E-03
2017 Apr 28 11:26 UTC  IRIDIUM 8              - DELTA 1 DEB             157 m +/- 42 m        1.361E-03
2017 Apr 28 20:08 UTC  FLOCK 3P-38            - FLOCK 3P-15             67 m +/- 27 m         5.779E-04
2017 Apr 29 09:27 UTC  FLOCK 3P-67            - FLOCK 3P-68             93 m +/- 22 m         5.082E-04