While Searching For Zuma Someone Found IMAGE

Search For Zuma Unearths Lost NASA Satellite, Aviation Week (Paywall)

"An amateur astronomer on the hunt for the classified Zuma satellite has discovered a long-lost NASA science satellite. "Over the past week. the station has been dedicated to an S-band scan looking for new targets and refreshing the frequency list, triggered by the recent launch of the mysterious Zuma mission," amateur visual and radio astronomer Scott Tilley wrote on his blog skyriddles.wordpress.com." ... Tilley set to work to identify the signal and soon revealed the source: a NASA science satellite known as IMAGE, which disappeared from radar tracking on Dec. 18, 2005.

January 26, 2018 - NASA Confirms IMAGE is indeed alive!, Scott Tilley

"Over the past week the station has been dedicated to an S-band scan looking for new targets and refreshing the frequency list, triggered by the recent launch of the mysterious ZUMA mission. This tends to be a semi-annual activity as it can eat up a lot of observing resources even with much of the data gathering automated the data reviewing is tedious. Upon reviewing the data from January 20, 2018, I noticed a curve consistent with an satellite in High Earth Orbit (HEO) on 2275.905MHz, darn not ZUMA... This is not uncommon during these searches. So I set to work to identify the source. A quick identity scan using 'strf' (sat tools rf) revealed the signal to come from 2000-017A, 26113, called IMAGE."