The last TLE became effective 11-1/2 hours ago and the position was 106W at that time. It was still moving at moving west at 3 degrees per day.no, the last tle showed it at 106.
The last TLE became effective 11-1/2 hours ago and the position was 106W at that time. It was still moving at moving west at 3 degrees per day.no, the last tle showed it at 106.
A question for the people doing TT&C at DIRECTV.Why is it going past its location?
Guess its going around again.A question for the people doing TT&C at DIRECTV.
Guess its going around again.
Yep by June we'll have our extra HD.
I can't wait for you to do that.or sooner.. can't wait to edit my HD list
why the F&^% is it passing its location????? GOD D#$%!!!!!!
My understanding is that the n2yo.com website uses the TLE information to extrapolate the position. So if the site doesn't have or use the latest info, it looks like the sat is still moving west at the last indicated speed.
I'd guess that D12 isn't really at the location that the site shows. But then, I could be wrong.
That's precisely what TLE information is: a model describing the position of the satellite at any given time. If the TLE was a snapshot, they wouldn't need all the calculus that is involved in the first and second derivatives.My understanding is that the n2yo.com website uses the TLE information to extrapolate the position.
FWIW, a single poster has posted a couple of screen shots showing signal readings on a couple of different transponders on 103(ca) which is D12. No one else but this one poster has seen this so I don't put a whole lot of stock in it at this point. Based on where it was yesterday I have a hard time believing D12 is at it's final spot.
I doubt that D12 actually blew by its destination as that website is just an approximation of its position based on the last TLE.That's precisely what TLE information is: a model describing the position of the satellite at any given time. ...
Because D12 blew past its destination at speed, it is likely that another formal drift back to the East will be required.
It needs to be said that DIRECTV is in a habit of not issuing TLEs when making significant changes to their satellite orbits so it is likely that we're in a waiting pattern to see when such a major change is completed.
Directv issues the TLEs?
Yes!Directv issues the TLEs?