Just like the Mars Rover Perseverance, the Perseverance Calibration Geocoin is trackable at Geocaching.com.
This geocoin features a unique icon.
Dimensions: Approximately 2.165 inches (55 mm) in diameter.
SHERLOC = “Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals”
WATSON = "Wide Angle Topographic Sensor for Operations and eNgineering"
Looking to learn more?
Check out the official Geocaching Mars Rover Perseverance site here.
Learn more from NASA about this project here.
See more NASA images here.