A.S. McEwen
G.W. Patterson
C. M. Ernst
C.M. Elder
K.A. Slack
S.E. Hawkins
J. McDermott
H. M. Meyer
R. DeMajistre
R. Espiritu
H. Seifert
J. Niewola
Michael T. Bland
M.K. Becker
J. Centurelli
G.C. Collins
P. Corlies
H. Darlington
I. J. Daubar
C. Derr
C. Detelich
E. Donald
W. Edens
L. Fletcher
C. Gardner
F. Graham
C.J. Hansen
C. Haslebacher
A.G. Hayes
D. Humm
T.A. Hurford
Randolph L. Kirk
N. W. Kutsop
W.J. Lees
D. T. Lewis
S. London
A. Magner
M.A. Mills
A.C. Barr Mlinar
F. Morgan
F. Nimmo
A. Ocasio Milanes
S. Osterman
C.B. Phillips
A. Pommerol
L. Prockter
L.C. Quick
G. Robbins
J.M. Soderblom
B.A. Stewart
A. Stickle
S.S. Sutton
N. Thomas
I. Torres
O.J. Tucker
R.B. Van Auken
K.A. Wilk
E.P. Turtle
2024
<p><span>The Europa Imaging System (EIS) consists of a Narrow-Angle Camera (NAC) and a Wide-Angle Camera (WAC) that are designed to work together to address high-priority science objectives regarding Europa’s geology, composition, and the nature of its ice shell. EIS accommodates variable geometry and illumination during rapid, low-altitude flybys with both framing and pushbroom imaging capability using rapid-readout, 8-megapixel (4k × 2k) detectors. Color observations are acquired using pushbroom imaging with up to six broadband filters. The data processing units (DPUs) perform digital time delay integration (TDI) to enhance signal-to-noise ratios and use readout strategies to measure and correct spacecraft jitter. The NAC has a 2.3° × 1.2° field of view (FOV) with a 10-μrad instantaneous FOV (IFOV), thus achieving 0.5-m pixel scale over a swath that is 2 km wide and several km long from a range of 50 km. The NAC is mounted on a 2-axis gimbal, ±30° cross- and along-track, that enables independent targeting and near-global (≥90%) mapping of Europa at ≤100-m pixel scale (to date, only ∼15% of Europa has been imaged at ≤900 m/pixel), as well as stereo imaging from as close as 50-km altitude to generate digital terrain models (DTMs) with ≤4-m ground sample distance (GSD) and ≤0.5-m vertical precision. The NAC will also perform observations at long range to search for potential erupting plumes, achieving 10-km pixel scale at a distance of one million kilometers. The WAC has a 48° × 24° FOV with a 218-μrad IFOV, achieving 11-m pixel scale at the center of a 44-km-wide swath from a range of 50 km, and generating DTMs with 32-m GSD and ≤4-m vertical precision. The WAC is designed to acquire three-line pushbroom stereo and color swaths along flyby ground-tracks.</span></p>
application/pdf
10.1007/s11214-024-01115-9
en
Springer
The Europa Imaging System (EIS) investigation
article