After an amateur astronomer recorded observations of a satellite in high Earth orbit on Jan. 20, 2018, his initial research suggested it was the Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) - a NASA mission launched into orbit around Earth on March 25, 2000.

Seeking to ascertain whether the signal indeed came from IMAGE, NASA's Goddard Space Flight Center in Greenbelt, Maryland, coordinated the use of five separate antennas to acquire radio frequency signals from the object.

As of Monday, Jan. 29, observations from all five sites were consistent with the radio frequency characteristics expected of IMAGE. Specifically, the radio frequency showed a spike at the expected center frequency, as well as side bands where they should be for IMAGE. Oscillation of the signal was also consistent with the last known spin rate for IMAGE.

To confirm beyond doubt that the satellite is IMAGE, NASA will next attempt to capture and analyze data from the signal. The challenge to decoding the signal is primarily technical. The types of hardware and operating systems used in the IMAGE Mission Operations Center no longer exist, and other systems have been updated several versions beyond what they were at the time, requiring significant reverse-engineering.

If data decoding is successful, NASA will seek to turn on the science payload - currently turned off - to understand the status of the various science instruments. Pending the outcome of these activities, NASA will decide on how to proceed.

IMAGE was designed to image Earth's magnetosphere and produce the first comprehensive global images of the plasma populations in this region. After successfully completing and extending its initial two-year mission in 2002, the satellite unexpectedly failed to make contact on a routine pass on Dec. 18, 2005. After a 2007 eclipse failed to induce a reboot, the mission was declared over.

earlier report
Attempting to Contact NASA's IMAGE
In mid-January, an amateur astronomer reported they believed they had made contact with a NASA satellite called Imager for Magnetopause-to-Aurora Global Exploration (IMAGE). IMAGE launched on March 25, 2000, and contact was unexpectedly lost on Dec. 18, 2005.

NASA's Goddard Space Flight Center in Greenbelt, Maryland, has acquired time on the Deep Space Network (DSN) to focus on the source and determine whether the signal is indeed IMAGE. This process must take into consideration the vintage nature of the spacecraft, and includes locating appropriate software and commands to potentially operate the mission. We will share more information as it becomes available.

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Related Links
Archived NASA mission website for IMAGE
Space Technology News - Applications and Research

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