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 Aug 05 08:05 UTC

Date        Time       SAT 1                    SAT 2                   Minimum Range         Probability     
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2017 Aug 05 06:27 UTC  IRIDIUM 53             - COSMOS 2251 DEB         115 m +/- 44 m        1.761E-03
2017 Aug 06 16:17 UTC  OBJECT T               - OBJECT V                65 m +/- 15 m         1.056E-03
2017 Aug 07 13:59 UTC  OBJECT T               - OBJECT V                107 m +/- 25 m        3.823E-04
2017 Aug 07 21:35 UTC  IRIDIUM 19             - COSMOS 2251 DEB         179 m +/- 43 m        1.176E-03
2017 Aug 09 13:23 UTC  CANX-5                 - FENGYUN 1C DEB          82 m +/- 21 m         5.999E-04
2017 Aug 09 14:42 UTC  IRIDIUM 6              - DMSP 5D-2 F6 DEB        208 m +/- 80 m        5.386E-04
2017 Aug 10 09:09 UTC  IRIDIUM 6              - IRIDIUM 57              141 m +/- 35 m        5.024E-03
2017 Aug 10 14:15 UTC  BEESAT                 - FENGYUN 1C DEB          105 m +/- 32 m        3.096E-04
2017 Aug 10 16:10 UTC  IRIDIUM 75             - FENGYUN 1C DEB          77 m +/- 31 m         3.746E-03
2017 Aug 10 18:06 UTC  IRIDIUM 68             - SL-8 R/B                333 m +/- 85 m        6.319E-04

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