PIA11711: Overnight Changes Recorded by Phoenix Conductivity Probe
 Target Name:  Mars
 Mission:  Phoenix
 Spacecraft:  Phoenix Mars Lander
 Instrument:  Thermal and Electrical Conductivity Probe
 Product Size:  1152 x 1152 pixels (w x h)
 Produced By:  University of Arizona
 Full-Res TIFF:  PIA11711.tif (3.986 MB)
 Full-Res JPEG:  PIA11711.jpg (89.88 kB)

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Original Caption Released with Image:

This graph presents simplified data from overnight measurements by the Thermal and Electrical Conductivity Probe on NASA's Phoenix Mars Lander from noon of the mission's 70th Martian day, or sol, to noon the following sol (Aug. 5 to Aug. 6, 2008).

The graph shows that water disappeared from the atmosphere overnight, at the same time that electrical measurements detected changes consistent with addition of water to the soil.

Water in soil appears to increase overnight, when water in the atmosphere disappears.

The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

Photojournal Note: As planned, the Phoenix lander, which landed May 25, 2008 23:53 UTC, ended communications in November 2008, about six months after landing, when its solar panels ceased operating in the dark Martian winter.

Image Credit:
NASA/JPL/University of Arizona

Image Addition Date: