LROC Experiment Data Record Wide Angle Camera – Mono (EDRWAM)
EDRWAM – Experiment Data Record Wide Angle Camera – Mono
Instrument: Lunar Reconnaissance Orbiter Camera
PDS Data Set ID: LRO-L-LROC-3-CDR-V1.0
For more information about LROC CDR products, see the CDR Product SIS.
For more information about all LROC products, see the LROC Archive Volume SIS.
The Lunar Reconnaissance Orbiter Camera (LROC) Calibrated Data Record Wide Angle Camera – Mono (CDRWAM) data products contain calibrated WAC monochromatic image data corresponding to a series of framelet images. WAC Digital Numbers (DNs) are decompanded and images are radiometrically calibrated to radiance (i.e. star observations) or I/F (i.e. lunar observations). The CDRWAM stores multispectral framelets in a single band. The file will require further processing to separate framelets into their respective bands and to align the bands, in order to be viewed as a standard multi-band image. The CDRWAM data are delivered in 16-bit format.
Specifications for the Monochromatic WAC are in the table below.
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Monochromatic |
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FOV |
61.4° |
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IFOV |
1.498 mrad |
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Image scale (nadir, 50 km altitude) |
74.9 m/pixel |
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Image frame width |
59.6 km |
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Image format (each band) |
704 samples x 14 lines |
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f/# (Ritchey-Chretien) |
5.052 |
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Effective focal length |
6.013 mm |
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Entrance pupil diameter |
1.19 mm |
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System MTF (Nyquist) |
0.37 |
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Gain |
25.9 ± 0.7 e-/DN |
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Noise |
66 ± 4 e- |
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Detector fullwell |
46,100 ± 3600 e- |
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Band | λeff | FWHM |
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SNR (at 1000 DN) |
> 150 |
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Detector digitization |
11-bit, encoded to 8-bits |
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Lossless compression ratio |
1.7:1 |
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Electronics |
4 circuit boards |
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Detector |
Kodak KLA-1001 |
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Pixel format |
1,024 x 1,024 |
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Voltage |
28 ± 7V DC |
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Peak power |
2.7 W |
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Orbit average power |
2.6 W |
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Mass |
0.9 kg |
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Volume (width x length x height) |
15.8 cm x 23.2 cm x 32.3 cm (incl. radiator) |
LROC CDRWAM products have the following file names:
tnnnnnnnnnMC.IMG
where:
t = target
M = Moon
E = Earth
C = calibration
S = star
nnnnnnnnn = 9-digit Mission Elapsed Time of acquisition (with a single digit for partition which denotes a reset of the MET)
In ODE, CDRWAM products have the following product IDs:
TNNNNNNNNNMC