This post commemorates the 9th anniversary of Opportunity landing on Mars on January 25, 2004. It is hard to believe a machine designed for a 90 day mission could still be functional in the harsh Martian environment for this many years. I've included some highlights culled from various NASA and JPL sources.
(Updated January 23, 2013)
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| Artist's rendering of Spirit or Opportunity rover exiting the landing platform. The blobs in the foreground are airbags. Prior to Curiosity, the primary means to land a rover on Mars was to enclose it in an airbag and let it bounce to scrub off the last bit of of momentum. |
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| This is how the Spirit and Opportunity bouncy balls rolled on their landings. The technology is still amazing, but it seems like stone knives and bearskins in comparison with the Curiosity skycrane landing platform. |
Here is the official press release noting the first signal from Opportunity on January 25, 2004.
http://marsrovers.jpl.nasa.gov/newsroom/pressreleases/20040125a.html
(excerpt)
NASA's second Mars Exploration Rover
successfully sent signals to Earth during its bouncy landing and after
it came to rest on one of the three side petals of its four-sided
lander.
Mission engineers at NASA's Jet Propulsion Laboratory, Pasadena, Calif.,
received the first signal from Opportunity on the ground at 9:05 p.m.
Pacific Standard Time Saturday via the NASA Deep Space Network, which
was listening with antennas in California and Australia.
"We're on Mars, everybody!" JPL's Rob Manning, manager for development
of the landing system, announced to the cheering flight team.
NASA Administrator Sean O'Keefe said at a subsequent press briefing,
"This was a tremendous testament to how NASA, when really focused on an
objective, can put every ounce of effort, energy, emotion and talent to
an important task. This team is the best in the world, no doubt about
it."
I remember reading the news that came out after the mission extension press release. Having Spirit and Opportunity on overtime at day 90 was amazing then. Getting one of these rovers to year nine was inconceivable at the time.
NASA Extends Rover Mission - April 8, 2004
(excerpts from press release)
"Given the rovers' tremendous success, the project submitted a proposal
for extending the mission, and we have approved it," said Orlando
Figueroa, Mars Exploration Program director at NASA Headquarters,
Washington, D.C.
"Once Opportunity finishes its 91st sol,
everything we get from the rovers after that is a bonus," said Dr.
Firouz Naderi, manager of Mars exploration at NASA's Jet Propulsion
Laboratory, Pasadena, Calif., where the rovers were built and are
controlled. "Even though the extended mission is approved to September,
and the rovers could last even longer, they also might stop in their
tracks next week or next month. They are operating under extremely harsh
conditions. However, while Spirit is past its 'warranty,' we look
forward to continued discoveries by both rovers in the months ahead."
At the time of this writing, we are still several days away from the ninth anniversary. Here is the eight anniversary press release.
Opportunity Eight Anniversary Press Release
JPL posted an image of the view from Opportunity on its eight anniversary. Mars is only a little less lonely with the arrival of Curiosity.
JPL continues to provide regular mission updates at
http://marsrover.nasa.gov/mission/status_opportunityAll.html As of January 10th, Opportunity is in great shape with some memory cache issues similar to problems Spirit had in its first year. After waking up from a long Martian winter last May, it has been on the move and doing science. Fortunately, a good windstorm helped clean off the solar panels and increase power output to around 460 watt hours. For perspective, Opportunity is working on just enough energy required to run one toaster slot and has run on far less depending on dust buildup, season and atmospheric opacity.
Update: On January 24, JPL posted a fresh image of Opportunity hard at work on Mars on Twitter. Great job, Opportunity!
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| Nine years on and still doing science... happy dance! |
Update: On January 22, JPL provided a mission update and a ninth anniversary panorama view from Opportunity.
Ninth Anniversary Press Release: http://marsrover.nasa.gov/newsroom/pressreleases/20130122a.html
Once again, here are images to compare and contrast generations of Mars rovers from the U.S. First, here are proving ground models of each rover. We've gone from something the size of a dog to a nuclear pile powered, laser equipped laboratory in a very short time.
And, as a contrast, here is my favorite rendering of the Curiosity landing platform. This is a long way from the bouncy rover approach of prior generations.
I just found a fresh rendering of another view of the landing from Caltech. Like!
I'm wrapping up this entry the day before the 2013 Inauguration. The
NASA "Mohawk Guy" will be marching in the parade with part of the
mission team and a Curiosity model. Here is the model getting some finishing touches.
As for the Inauguration, my spousal unit, MEK of the House Full of
Nerds, is in D.C. and just send some preview images of the bleachers I
scored tickets for. She is taking a friend and will get to sit right
across from the White House! I try to keep this blog as a Casablanca
style politics neutral zone. If you are interested, I posted photos
from my trip to the 2009 Inauguration at
http://digitalmemoryhole.blogspot.com/2013/01/obama-inauguration-2009-redux.html
Update: The NASA photo set from the Inauguration parade is at
http://www.flickr.com/photos/nasahqphoto/sets/72157632550413537/with/8395896054/
Yes, this post is supposed to be about Opportunity. Ultimately, each rover generation is a stepping stone to the next. I can't wait to see what our technology looks like in 2030!
