On Sun, 06 Oct 2013 16:37:56 -0500, amdx wrote:
On 10/6/2013 10:24 AM, Jeff Liebermann wrote: Gotta run and
watch the solar satellite outage today.
http://en.wikipedia.org/wiki/Sun_outage
I lost several minutes of the nascar race on ESPN and then a while
later on radio, a syndicated program (Bob Brinker) was out for 3 to 6
minutes. It all happened (approximately) between 3:45 and 4:20.
Was that the sun outage?
Mikek
Unless the downlink was in Hawaii, it's unlikely that it was directly
caused by the sun outage. It happend on Viasat-1 (Wild Blue or Exede)
today at about 12:25PM. The earth rotates at:
24hrs * 60min/hr / 360deg = 4 min/deg
With a difference of about 3.5 hrs (210 minutes), the earth will have
rotated:
210min / 4 min/deg = 52 degree longitude or about
:
122w + 52 = 174w
which is almost at the International Date Line. A more sane guess
would be that what you were watching was recorded between 12PM and 2PM
for delayed broadcast somewhere in the continental USA, during which
time there was a solar outage.
A 3 to 6 minute outage implies 1 or 2 meter receive dish.
Most stations know about the problem and usually have something
pre-recorded available to fill in the outage. I'm rather surprised
that ESPN wasn't paying attention.
Grind your own numbers:
http://www.satellite-calculations.com/Satellite/suninterference.php
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060
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Skype: JeffLiebermann AE6KS 831-336-2558