From: spaceuk@netcomuk.co.uk   
      
   Why not write JPL or Goldstone tracking station.   
   They have been tracking these probes for years - at least couple tries a day   
   for a couple days per year and have received faint signals in last few   
   years. Therefore, they must have at least raw position (if not precise)   
   coordinates to be able to do that.   
      
   Below is the last public data I saw about Pioneer:-   
      
   Pioneer 10   
      
   Distance from Sun : 82.19 AU   
   Speed relative to the Sun: 12.224 km/sec (27,345 mph)   
   Distance from Earth: 12.21 billion kilometers (7.59 billion miles)   
   (Round-trip Light Time 3D 22 hours 38 minutes)   
      
   The Pioneer 10 signal was detected on 23 January 2003, but because of   
   limited link time (due to a high-power transmitter trip) no telemetry was   
   received. During uplink on 22 January 2003, the high-power transmitter   
   tripped off. A second high-power transmission was limited to a short time at   
   the end of the track. A GTT-off command was radiated. During downlink on   
   23 January 2003, the signal was found but there was no lockon to the   
   subcarrier. (Roundtrip Light Time was 22 hours 35 minutes).   
      
   On 5 December 2002, there was a Pioneer 10 contact. The Deep Space Station   
   (DSS) near Madrid (DSS-63) found the signal but could not lock onto the   
   receiver, and so no telemetry was received. The signal level was ust under   
   the threshold value. The uplink from DSS-14 at Goldstone, sent 4 December   
   2002, at a power level of 325 kw, confirmed that the spacecraft signal is   
   still there (Round Trip Light Time 3D 22 hours 24 minutes).   
      
   Project Phoenix also picked up the signal at Arecibo in Puerto Rico   
      
   --   
      
      
   "steve rappolee"  wrote in message   
   news:5d1b4cd2.0310281200.2271d0c9@posting.google.com...   
   > g_d_pusch_remove_underscores@xnet.com (Gordon D. Pusch) wrote in message   
   news:...   
   > > Anybody known where I can find the Pioneer 10 and 11 trajectory elements   
   ???   
   > > I've done some Googling and rummaging around on the JPL and various NASA   
   > > sites, but so far no luck... :-(   
   > >   
   > >   
   > > -- Gordon D. Pusch   
   > >   
   > > perl -e '$_ = "gdpusch\@NO.xnet.SPAM.com\n"; s/NO\.//; s/SPAM\.//;   
   print;'   
   >   
   > >>>>>>>>>>>>>>>>>>   
   >   
   >   
   >         early AIAA astrodynamics conference papers have pioneer 10 and   
   > 11 as well as voyager I and II trajectory elements for these   
   > spacecraft for just before there TCM-1 maneuvers or to restate there   
   > initial injection aimpoints.propagate these out and you find a high   
   > probability that the pioneer 10 and the two voyagers star solid rocket   
   > upper stages most likely followed the spacecraft into there Jupiter   
   > flybys and are in a solar system escape trajectory.   
   >   
   > Steve rappolee   
      
   --- SoupGate-Win32 v1.05   
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