RocketSTEM Issue #6 - March 2014 | Page 57

Q: How about drilling operations to collect the samples for SAM? Kim: Yes. It’s part of my job planning for drilling such as at John Klein and Cumberland. We have to plan one day at a time if that’s going to happen. We might discover something on the downlink that would push that off or move it. the best science from the instrument, we’ve left it so that it’s very tweakable. Actually we run scripts on this. It’s actually more like code. It’s writing a program each time we want to do any analysis with it. The code itself turns on heaters, can pump out the instrument. It’s kind of infinitely customizable. We’ll be busy over the rest of the prime mission. Goddard has a test version of SAM that they have set up in a thermal vacuum chamber. They run all their scripts on that ahead of time to make sure that all the limits are set correctly and that the script is safe to run on the surface. But you can’t model everything. Sometimes things work a little dif ferently on the surface than they do on the test pad at Goddard. Photo: Brenden Clark SAM related that we want to test before it goes up onto the Rover. Q: When does your responsibly begin with the drill sample? Kim: It starts with using SAM to analyze the drill samples. We have a team of people called rover planners who are the ones that conduct all the mobility, all the sampling and also the drop-off to the SAM instrument. There’s a handshaking that has to happen between the sample and the SAM instrument. Q: Q: Kim now works as the engineer for the MSL SAM instrument. How has SAM operated so far at the sites examined so far, for example Rocknest and John Klein? What’s your assessment? Kim: Fantastically. In terms of how the instrument has worked on the engineering level, SAM is absolutely amazing. It is such a complicated instrument. It’s actually three instruments in one. In order to get I guess to finish up, please tell me how happy or proud are you to work on this mission? Kim: Oh my goodness. I can’t even put any words to that adequately. I am thrilled. I am so happy and so proud to be working on this mission. There’s really nothing else I’d rather be doing. Curiosity looks back eastward to ‘Dingo Gap’ sand dune inside Gale Crater. After crossing over the dune on Feb. 9, 2014 the rover drove Image: NASA/JPL/Ken Kremer/Marco Di Lorenzo into the ‘Moonlight Valley’. The parallel rover wheel tracks are 9 feet (2.7 meters) apart.