Mission team members have also received their first complete look at InSight's "workspace" - the approximately 14-by-7-foot (4-by-2-meter) crescent of terrain directly in front of the spacecraft. This image is also a mosaic composed of 52 individual photos.
In the coming weeks, scientists and engineers will go through the painstaking process of deciding where in this workspace the spacecraft's instruments should be placed. They will then command InSight's robotic arm to carefully set the seismometer (called the Seismic Experiment for Interior Structure, or SEIS) and heat-flow probe (known as the Heat Flow and Physical Properties Package, or HP3) in the chosen locations. Both work best on level ground, and engineers want to avoid setting them on rocks larger than about a half-inch (1.3 cm).
"The near-absence of rocks, hills and holes means it'll be extremely safe for our instruments," said InSight's Principal Investigator Bruce Banerdt of NASA's Jet Propulsion Laboratory in Pasadena, California. "This might seem like a pretty plain piece of ground if it weren't on Mars, but we're glad to see that."
This is from News | NASA's InSight Places First Instrument on MarsAccording to a post-deployment update posted to the JPL website, the seismometer has been placed about as far away from the lander as the arm can reach, 1.636 meters away. The next step in the long process of setting up InSight’s experiments is to level the seismometer; its placement spot has a very gentle slope of 2-3 degrees. They may (or may not) also nudge the tether ribbon slightly to minimize the noise it contributes to seismometer measurements (more on that below). After that, they’ll place a lid over the seismometer to shield it from wind, daytime heat, and nighttime cold. They expect to have the heat probe placed on the ground, about 1.2 meters to the left of the seismometer, by late January.
Logbook entry: 22 March 2019
The Anomaly Response Team today has approved of our way forward. Accordingly, the next steps for HP3 will be:
Command a TEM-A thermal conductivity measurement today to be executed over the weekend. The measurement takes 24 hours. On Monday, command the diagnostic hammering and image taking I was describing in my previous post to be executed in the afternoon of the next sol on Mars with data being downlinked coming Wednesday. We may then have to take some time to evaluate the data.
Stay tuned and keep your fingers crossed!
Q: Why can't you pick up the 'mole' and move it to another spot?
A: ... Designed to be housed within the support structure, the mole itself has no grapple point and was not intended to be grasped or moved. ...
Q: Why doesn't the mole include a drill?
A: A drill would require a much bigger, more powerful motor than what the InSight lander can accommodate. It would also require more power than the solar-powered lander can practically provide. What's more, a drill would require rigging to stabilize it as the motor spins, just like with a drill press. Rigging cancels out the force of a drill's spin, which would otherwise spin the motor in the other direction. ...
Q: Are you sure the mole didn't hit a rock?
A: Most of the team remains confident that a rock didn't cause the mole to rebound. The landing site, Elysium Planitia, was selected partly because it has so few visible rocks, implying few large subsurface rocks. ...
Cows, the graphic forgot to add cows.Here's an article on Mars Methane that may be of interest;
''On Mars, methane production appears to be seasonal in nature, fluctuating from about 0.24 parts per billion (ppb) in the northern hemisphere during winter to about 0.65 ppb during the summer.
At the same time, extended plumes have been detected which shows that it is also periodically released from discrete regions. On two occasions, the Curiosity rover happened to be in the vicinity of plumes; in December of 2014 and again back in June.''
Their methane comes from microbes that live in their guts.Cows, the graphic forgot to add cows.