About 8 pages back EPPo posted today's update and says they had 6 pings that is basically 1 an hour after falling of milrad.
Please follow me through this.
If you look at the map by Volcanicash page 203 #4043 (
http://s8.postimg.org/ye87yekz9/isat.jpg )
Counting back that is 40, 45,50,55,60 65. He clearly could not have gotten that close to the centre of the elevation rings ,and still get to those final arcs, so he must have flown at tangent to them, My best guess is
1st ping 45 - west bound from final radar loss point
2nd ping 50 still west ish bound
3rd ping 55 still west ish bound
he then turns NW or SW
4th ping 50
5th ping 45
6th ping 40
and ended up on the north or south arc.
But there was a rush to the north (Andam sea) why?
Finally if you look at this link from Vinnie_boombatz p201 #4011
http://telecom.esa.int/telecom/media...-Obj4-hres.jpg
It shows the beaming arrangement of the I-4 series inmarsats (3 cover the world), there is wide beam (the whole area), a number of regional beams and finally the narrow beams. ( used I-3 diag for explanation purpose only)
To my knowledge the signals were picked up by the old I-3 sats which use 4 to cover the world and only have wide and regional beams.
As I understand the workings of the system the sat send a "hello anyone there" signal using the wide beam and if a reply is received it calculates the best regional beam to use transmits back to the response using the regional beam. Sat engineers pls confirm/correct.
The point of this post is to ask an expert if it can do that why don't we know a more accurate position ie a shorter arc based on the regional beam.