IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
Communications Satellites
Guest_PhilCo126_*
post Jun 12 2008, 08:03 PM
Post #1





Guests






I realise this is an Earth Observation part of the forum, but started a comms satellites topic anyway ph34r.gif
Deployment of ICO Global Communications G1 Satellite:

http://www.ssloral.com/

choose NEWS and then click Video Clips unsure.gif
or directly:

http://www.ssloral.com/downloads/videos/ic...or_vo_short.wmv

Go to the top of the page
 
+Quote Post
nprev
post Jun 13 2008, 02:09 AM
Post #2


Merciless Robot
****

Group: Admin
Posts: 8783
Joined: 8-December 05
From: Los Angeles
Member No.: 602



Hey, that was very, very cool indeed; thanks, Phil! smile.gif

Man, they must've been sweating bullets throughout that antenna deployment; amazingly complex operation.


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
Guest_PhilCo126_*
post Sep 6 2008, 05:52 PM
Post #3





Guests






Talking about communications satellites ( or spy satellite ):
What was the highest orbit used for satellites to observe Earth ( we do not count the geo-stationary satellites at 36000 km ).
I guess the Apogee of Russian Molniya orbits lay around 40000 Km ???
Go to the top of the page
 
+Quote Post
mchan
post Sep 7 2008, 10:37 PM
Post #4


Member
***

Group: Members
Posts: 599
Joined: 26-August 05
Member No.: 476



Well, if you count observing Earth just because it happens to be in its field of view, then consider the old Vela satellites at 100,000 to 110,000 km.

Talking about comsats, a proposed system for what eventually became Milstar had satellites in polar orbit also at about 110,000 km for higher survivability in a nuclear war. Milstar was expensive enough, the earlier system would have been freaking expensive.
Go to the top of the page
 
+Quote Post
Guest_PhilCo126_*
post Jan 26 2009, 09:19 PM
Post #5





Guests






http://www.space.com/missionlaunches/09012...es-control.html
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 29th March 2024 - 02:23 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.