Vitacom

Intelsat IS 25 and Satmex 8 Solar outage

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The two satellites we use, Intelsat IS 25 and Satmex 8, both have websites detailing their sun outages as well. For Intelsat, they provide another calculator, Intelsat Calculator. Satmex 8 provides information on their outages in a series of pdf files provided here (translated into English). First select the Tools tab at the top of the page. On the next page select solar interference on the left side of the screen. From there pick the location of your antennae. The PDFs have the solar outages for all Satmex satellites.


Sun outages occur when a satellite is lined up exactly between the earth station antenna and the Sun. The Sun emits electromagnetic radiation across the entire spectrum, including the microwave frequencies which satellites use. The sun’s signal is so much stronger than the satellites, that it interferes with the ability for the satellites to communicate. The interference ranges from a complete signal failure to an increase in errors in the signal. This effect will only last a few days a year, and will only last up to 12 minutes during these days. There are several websites which provide a calculator to determine when these outages will affect your area. The website Satellite-Calculators has a comprehensive calculator for most satellites, including the satellites Vitacom uses to provide our services.

The following drawing shows how the satellite is lined up between both the Earth and the Sun for the solar outages.

Sun Outage


IS-25 - Vitacom Teleport, Miami, Florida  USA

 

Date Start Time (GMT) End Time (GMT) Duration
September 29, 2013 13:26:00 13:35:00 9 minutes
September 30, 2013 13:24:00 13:36:00 12 minutes
October 1, 2013 13:23:00 13:36:00 13 minutes
October 2, 2013 13:22:00 13:36:00 14 minutes
October 3, 2013 13:22:00 13:36:00 14 minutes
October 4, 2013 13:22:00 13:36:00 14 minutes
October 5, 2013 13:22:00 13:34:00 12 minutes
October 6, 2013 13:23:00 13:33:00 10 minutes
October 7, 2013 13:25:00 13:30:00 5 minutes

Satmex 8 - Vitacom Teleport, Miami, Florida  USA

 

Date Start Time (GMT) End Time (GMT) Duration
September 28, 2013 19:56:28 20:00:28 4 minutes
September 29, 2013 19:53:08 20:03:08 10 minutes
September 30, 2013 19:50:49 20:04:49 14 minutes
October 1, 2013 19:49:30 20:05:30 16 minutes
October 2, 2013 19:49:11 20:05:11 16 minutes
October 3, 2013 19:48:52 20:04:52 16 minutes
October 4, 2013 19:48:34 20:04:34 16 minutes
October 5, 2013 19:49:16 20:04:16 15 minutes
October 6, 2013 19:49:58 20:02:58 13 minutes
October 7, 2013 19:50:41 20:00:41 10 minutes

References:

  • Saetre, Jeans T. Satellite calculators. Retrieved at http://www.satellite-calculations.com/Satellite/suninterference.php

  • INTELSAT. Sun Interference Calculator. Retrieved at http://www.intelsat.com/tools-resources/satellite-data-tools/sun-interference-calculator/

 

Solar Outage