Lucy Terminal Tracking Camera (TTCam) Donaldjohanson Raw Collection

Data Set Overview
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This collection consists of raw image products acquired by the TTCam instrument
during the Lucy Mission Donaldjohanson Encounter. 

The Lucy spacecraft closest approach to Donaldjohanson occurred 
on April 20, 2025 17:51:16 UT at a distance of 962 km.


Data Products 
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Products contained within this collection are .FITS images described in the
TTCam SIS document. Raw images are not radiometrically calibrated. Image data
units are in Digital Number (DN). 

Note that TTCam images that are 1944 x 2592 rows x columns are “Tracking Mode”
images, most often acquired during the few minutes around the mission’s actual
asteroid flybys. TTCam images that are 2000 x 2592 rows x columns are
“Calibration Mode” images, primarily of stars and star clusters, that are
acquired during periodic calibration campaigns not associated with the mission’s
actual asteroid flybys.  More details on the differences between Tracking Model
and Calibration Mode images can be found in Bell et al. (2023) and Zhao et al. (2024)

Last Revision
2025-08-22 Raw Collection