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Sat, Sep 15, 2018

Martian Skies Clearing Over Opportunity Rover

NASA Increasing Efforts To Contact The Rover

Scientists reviewing data from the Mars Color Imager (MARCI) aboard NASA's Mars Reconnaissance Orbiter (MRO) have determined that the tau estimate (a measure of the amount of haze in the Martian atmosphere) in the skies above the rover Opportunity has been below 1.5 for two consecutive measurements.

With more sunlight reaching the rover's solar array, the Opportunity team at NASA's Jet Propulsion Laboratory in Pasadena, California, are increasing the frequency of commands it beams to the 14-plus-year-old rover via the dishes of NASA's Deep Space Network from three times a week to multiple times per day.

Passive listening for Opportunity will also continue to be performed by JPL's Radio Science Group, which records radio signals emanating from Mars with a very sensitive broadband receiver.

“The Sun is breaking through the haze over Perseverance Valley, and soon there will be enough sunlight present that Opportunity should be able to recharge its batteries,” said John Callas, Opportunity project manager at JPL. “When the tau level [a measure of the amount of particulate matter in the Martian sky] dips below 1.5, we will begin a period of actively attempting to communicate with the rover by sending it commands via the antennas of NASA’s Deep Space Network. Assuming that we hear back from Opportunity, we will begin the process of discerning its status and bringing it back online.”

The rover’s last communication with Earth was received June 10, and Opportunity’s current health is unknown. Opportunity engineers are relying on the expertise of Mars scientists analyzing data from the Mars Color Imager (MARCI) aboard NASA’s Mars Reconnaissance Orbiter (MRO) to estimate the tau near the rover’s position.

(Source: NASA. Image from file)

FMI: www.nasa.gov

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