+lordelph Posted March 21, 2007 Share Posted March 21, 2007 (edited) Seems it's time to form a guard of honour and wave goodbye to our good friend SVN-15 "Firebird", one of the GPS satellites which has just been retired. http://www.gpsreview.net/goodbye-svn-15-firebird/ SVN-15, we salute you! I even forgive you for that time you had me searching in nettles. B*****d. Edited March 21, 2007 by lordelph Quote Link to comment
+third-degree-witch Posted March 21, 2007 Share Posted March 21, 2007 Hasta La Vista Baby........thanks for the guidance Quote Link to comment
+arock&ahardplace Posted March 21, 2007 Share Posted March 21, 2007 Seems it's time to form a guard of honour and wave goodbye to our good friend SVN-15 "Firebird", one of the GPS satellites which has just been retired. http://www.gpsreview.net/goodbye-svn-15-firebird/ SVN-15, we salute you! I even forgive you for that time you had me searching in nettles. B*****d. So THAT'S how I ended up in those bramble bushes! Thanks for solving the mystery, lordelph! Quote Link to comment
The Red Kite Posted March 22, 2007 Share Posted March 22, 2007 So long and thanks for all the fish.. I mean caches!! Quote Link to comment
+Boneychest & Catsuey Posted March 22, 2007 Share Posted March 22, 2007 ".... will send Firebird into disposable orbit" Does that mean deep space geolitter or earthbound ash? Quote Link to comment
+wizard1974uk Posted March 22, 2007 Share Posted March 22, 2007 ".... will send Firebird into disposable orbit" Does that mean deep space geolitter or earthbound ash? Normally to earth so it will hopefully burn up in the atmosphere or plunge into the sea like they planned with the mir space station. Quote Link to comment
+The Forester Posted March 22, 2007 Share Posted March 22, 2007 ".... will send Firebird into disposable orbit" Does that mean deep space geolitter or earthbound ash? No. They made a typo. They should have said a "disposal" orbit. It's sometimes known as a graveyard orbit. It's out of the way of in_service satellites and is quite different to sending it down to burn up in the atmosphere. They do retain the ability to send it crashing into the atmosphere at a later date if they want to, but that's not the preferred option due to the risk of clonking a Low Earth Orbit satellite on the way down. Sending it in to deep space is not really an option as that would take a phenomenal amount of power and the tired old bird is nearly out of fuel. There are still plenty of the old Transit satellites (the US Navy's early satellite navigation system which was developed for the Polaris fleet) still whizzing around, despite their having been decommisioned when NavStar "GPS" came online. Most of them are still able to 'talk' to the ground and most are still able to be talked to. In fact, some of the corrections applied to GPS data are derived from measurements made by monitoring the Transit satellites' remaining signals. Quote Link to comment
+Kryten Posted March 22, 2007 Share Posted March 22, 2007 Aaaagh Transit, wait all day to get a fix and then three come along at once. Quote Link to comment
fraggle69 Posted March 22, 2007 Share Posted March 22, 2007 ".... will send Firebird into disposable orbit" Does that mean deep space geolitter or earthbound ash? Target practice for N.Korea Quote Link to comment
+The Forester Posted March 23, 2007 Share Posted March 23, 2007 Aaaagh Transit, wait all day to get a fix and then three come along at once. And it took 40 passes to get a decent fix. Quote Link to comment
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