by Louise Jandura
Chief Engineer for Sampling & Caching
NASA/JPL

On Wednesday, Dec. 29 (sol 306) Perseverance successfully cored and extracted a sample from a Mars rock. Data downlinked after the sampling indicates that coring of the rock the science team nicknamed Issole went smoothly. However, during the transfer of the bit that contains the sample into the rover’s bit carousel (which stores bits and passes tubes to the tube processing hardware inside the rover), our sensors indicated an anomaly. The rover did as it was designed to do – halting the caching procedure and calling home for further instructions.

Written by Jennifer Trosper
Project Manager at NASA’s Jet Propulsion Laboratory

I will always remember the moments around our first sampling attempt. Longtime friend (and Sampling System Chief Engineer) Louise Jandura and I were in the operations area awaiting the next data downlink. It was “so far, so good” with our earlier morning results showing we had achieved a full-depth borehole. Other members of the team began to filter in as images of the sealed sample tube came up on the ops room monitors. We were all starting to get that feeling you can get in this business when a big milestone comes together because, at first look, it appeared to be our first cored sample. But within minutes, the team noted that the volume probe indicated no sample was in the tube, and we quickly switched to problem-solving mode – once again trying to solve another problem tossed our way from the surface of Mars.

Written by Louise Jandura
Chief Engineer for Sampling & Caching at NASA/JPL

PASADENA, Calif. — After the commands for sol 164 were sent for the first sample acquisition and processing on the target Roubion, it was time to take a few hours off and wait for the result. More than 90 engineers and scientists who had worked years preparing for this moment gathered online at 2 am PDT on Friday, August 6 to wait together for the first data from the coring operation. This data verified that the Corer had achieved the full commanded depth (7 centimeters) and we saw the image of the hole on Mars surrounded by the cuttings pile (material produced around the borehole during coring). So far, so good we thought as we signed off to try and get a few more hours of sleep before the next set of data arrived about 6 hours later.