Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Satellite TV receivers & systems support forums
Satellite Launches and Retirements
Eutelsat Hot Bird 13F & 13G
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Analoguesat" data-source="post: 1150515" data-attributes="member: 176362"><p>Yup as I have said many times in the past the tracking sites are perfectly accurate where a satellite is unpowered - so if you want to know where the Envisat satellite is (a dead research satellite but easily visible to the naked eye) then the predicted positional information will be fine.</p><p></p><p>As soon as a satellite starts manoevering then all orbital predictions are wrong for the the duration of the move plus however long it takes for the TLE calculations to catch up which is normally a week or so.</p><p></p><p>The thing all tracking site users must remember is <strong>the tracking sites are predictions - not real time data. </strong>Ive seen orbital information displayed for a satellite in a decaying orbit where the tracking was still "live" several days after it had burned up in the atmosphere! After a week the site was corrected to object DECAYED</p></blockquote><p></p>
[QUOTE="Analoguesat, post: 1150515, member: 176362"] Yup as I have said many times in the past the tracking sites are perfectly accurate where a satellite is unpowered - so if you want to know where the Envisat satellite is (a dead research satellite but easily visible to the naked eye) then the predicted positional information will be fine. As soon as a satellite starts manoevering then all orbital predictions are wrong for the the duration of the move plus however long it takes for the TLE calculations to catch up which is normally a week or so. The thing all tracking site users must remember is [B]the tracking sites are predictions - not real time data. [/B]Ive seen orbital information displayed for a satellite in a decaying orbit where the tracking was still "live" several days after it had burned up in the atmosphere! After a week the site was corrected to object DECAYED [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
Satellite Launches and Retirements
Eutelsat Hot Bird 13F & 13G
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top