From: LARRY KLAES (ljk4@msn.com)
Date: Sat Mar 02 2002 - 19:13:57 PST
----- Original Message -----
From: Larry Kellogg
Sent: Saturday, March 02, 2002 9:20 PM
To: lunar-update@lists.arc.nasa.gov
Cc: Larry Kellogg
Subject: Pioneer-10 30 Year Launch Anniversary Track
Hello folks.
We were looking up today and listening, well really the folks at the
Deep Space Network, near Madrid Spain, were listening for us.
An uplink was sent to Pioneer 10 yesterday from here in the USA and
and that signal got Pioneer 10's attention and it then switched to
the variable frequency oscillator and sent back the telemetry stream
it is supposed to. After travelling to Earth, it was picked up in
Spain.
The SETI folks got some time on the Arecibo Radio Telescope and saw
the signature of our alien spacecraft as well. Nice to know there
are intelligent beings somewhere.
And to Al Morgan of Strobe Data Inc., the PC Osprey worked just fine
in passing the two flag commands to Goldstone yesterday, by way of
what is left of a PDP 11/44, and that string of hardware boxes that
creates a high speed data block, that trickles out an old analog
modem, that passes it to another building, that formats it into a
newer digital link, that connects to JPL, that passes it to
Goldstone. How is that for a crooked lane and a crooked man and
----- LRK
See Dave Lozier's report below as passed by Dr. Lasher.
Ok, going upstairs now and turn out the lights.
If you can't log onto the spaceprojects web site is probably because
it crashed (as it has several times today while I was here today).
The little counter on the Webstar server was churnin and burnin and
the Mac is only set to handle 12 hits at a time. tch tch. Good Luck.
Will check on it the next time I am in.
Larry
==========================================================
Date: Sat, 2 Mar 2002 17:27:40 -0800
To: suppressed.
From: Lawrence Lasher <llasher@mail.arc.nasa.gov>
Subject: Pioneer-10 30 Year Launch Anniversary Track
cc: suppressed,
Pioneer-10 was successfully contacted today. Yesterday, about 3pm
PST a 200 Kw uplink transmission from Goldstone California, the 70
meter DSN antenna DSS-14, was sent to Pioneer-10 and 22 hours later
in Madrid Spain at the DSN 70 meter antenna DSS-63 the confirmation
of contact was received. From a distance of 79.7 AU DSS-63 acquired
the signal on time at about -183 dbm. They spent an hour peaking the
signal (-178.5 dbm) and then they were able to lock up telemetry at
16 bps at an SNR of -0.5 db. Tracking continued until the elevation
was about 20 degrees but enough telemetry was received to verify the
state of Pioneer-10. Incidentally, the SETI institute also saw the
signal from Arecibo in Puerto Rico. For years they have used
Pioneer-10 as a reference for their investigations.
The spacecraft is still healthy. The power is still sufficient to
support the loads with the bus voltage at about 26 volts (nominal is
28). The uplink from DSS-14 was received by the spacecraft at
-131.7 dbm. The spacecraft is extremely cold, with many of the
temperature readings at the bottom of their scales. Two commands
were sent yesterday from Goldstone and both were confirmed to have
been executed by the spacecraft. One scientific instrument is still
on, the Geiger Tube Telescope, and Dr. James Van Allen, the PI, will
be happy to hear he has some more data to look at.
Thirty years ago the first mission to explore the outer planets,
specifically the planet Jupiter, was launched from KSC. Many of the
people who designed, built and flew the spacecraft have passed on but
Pioneer-10 continues. From ARC and the Pioneer Project we send our
thanks to the many people at the DSN (Goldstone and Madrid) and JPL
who made it possible to hear the spacecraft signal again.
Dave Lozier, Pioneer Flight Director
-- ================================ Dr. Larry Lasher Pioneer Project Manager MS 244-14 NASA Ames Research Center Moffett Field, CA 94035-1000 voice: 650-604-3076 fax: 650-604-0673 email: llasher@mail.arc.nasa.gov Web Site: http://spaceprojects.arc.nasa.gov/Space_Projects/pioneer/PNhome.html========================================================== If you any suggestions or comments please feel free to write to my Ames e-mail at
You just might see some of it re-appear here, so beware. :->
Larry Kellogg ========================================================== WHAT THE MIND CAN CONCEIVE, AND BELIEVE, IT WILL ACHIEVE - LRK http://home.mindspring.com/~larrykellogg ========================================================== To remove yourself from the lunar-update emailer simply send a message to -
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To:lunar-update-request@lists.arc.nasa.gov From: <your e-mail address> Subject: subscribe ========================================================== -- Larry R. Kellogg lkellogg@mail.arc.nasa.gov http://lunar.arc.nasa.gov
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