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Started by Terry Fong
Thu, 16 Feb 1995 19:40
Pele Rover Mission Status (Kilauea Volcano, Hawaii)
Author: Terry Fong
Date: Thu, 16 Feb 1995 19:40
Date: Thu, 16 Feb 1995 19:40
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5989 bytes
Hi all,
The following is a status update on the Pele Rover Mission. The Pele
lunar rover mission concept is a proposal developed by a joint team of
the University of Hawaii, NASA Ames Research Center, NASA Johnson
Space Center, McDonnell Douglas Aerospace, the Lavochkin Association,
and Brown University. The mission concept proposes to explore issues
in lunar science and planetary volcanism that were left unanswered by
Apollo. The Pele team is currently conducting field trials with a
Marsokhod rover in the Kilauea Volcano, Hawaii. A major focus of these
tests is to evaluate the use of advanced teleoperations methods (e.g.,
virtual environment based control, high-fidelity stereo video based
telepresence) for operating the rover from geographically distributed
remote control stations.
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Pele Mission Status Report
Hawaii Volcano Observatory -- Kilauea, Hawaii
14-Feb-1995
On the second day of Mars science simulations, the Marsokhod rover
field team again achieved its daily goal of four hours of operations
by the remote science team located at NASA Ames Research Center near
San Jose, California. The weather at the Kilauea test site was perfect
today, with a clear sky for most of the morning and no precipitation
at any time.
The day started with the Marsokhod located in the same spot that it
had reached at the end of yesterday. For those familiar with Kilauea,
this was along the southwest rift zone, west of the main caldera.
Despite an on-time start at 7 a.m. local time, the day started slowly
because of intermittent RF communication problems between the local
control center in the Hawaii Volcano Observatory tower and the rover
in the field. It took several hours to track down a bad cable in the
transceiver station that had been causing intermittent drop-outs in
the data link to the field. Once corrected, the communication links
stabilized and enabled more efficient operations than had been
possible yesterday. Other improvements included an enhanced computer
software interface for the scientists back at Ames, as well as an
improved battery management strategy for achieving extended rover
operations in the field.
Once nominal operations were established, the science team negotiated
the rover through several extremely difficult maneuvers, including a
180 degree turn in a narrow crevass. Initial indications are that many
of the participating scientists now believe that future rover missions
should include pan-tilt camera pointing and a manipulator arm for
additional close-up imaging.
After addressing the RF problems, the engineering team continued to
refine the field operations and identify opportunities for improving
the Marsokhod's performance. They also deployed the vehicle for the
daily public demonstration at 3:30 at HVO.
Plans for tomorrow are to finish the third and final day of Mars
science simulation tests. It is a good bet that the top-priority
software mods needed to fully integrate the magnetic compass
instrument will be finished for this phase. The arm control software
remains the next priority and should be functional in time for the
lunar science simulations that start on Thursday.
Even after several days of testing, local media interest remains
strong. Several of the Hawaii television stations have carried news
stories addressing the rover. The vehicle, along with McDonnell
Douglas' Dave James, was the main feature on the first page of this
morning's Hawaii Tribune-Herald. Additional outreach efforts in the
near future include an on-line computer conference with members of the
engineering team that is being hosted Wednesday at 5:00 p.m. local
time by The Planetary Society on the GEnie network. JASON VI
preparations are expected to start receiving greater atttention later
this week as more members of the JASON team arrive in Kilauea.
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For additional information on Marsokhod and JASON activities check the
following WWW pages:
NASA Ames Intelligent Mechanisms Group
http://maas-neotek.arc.nasa.gov/
http://maas-neotek.arc.nasa.gov/marsokhod
McDonnell Douglas
http://pat.mdc.com/HB/new/Planetary/planetary.html
JASON Foundation
http://seawifs.gsfc.nasa.gov/JASON.html
--
_______________________________________________________________________________
"San Francisco has only one Terry Fong <terry@cmu.edu>
drawback - it's hard to leave..." Robotics Institute, Carnegie Mellon
-- Rudyard Kipling Pittsburgh, PA 15213 412-268-1416
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