Inflight Calibration of the Lunar Reconnaissance Orbiter Camera Wide Angle Camera

Prasun Mahanti, D. C. Humm, Mark Robinson, A. K. Boyd, R. Stelling, H. Sato, B. W. Denevi, S. E. Braden, E. Bowman-Cisneros, S. M. Brylow, M. Tschimmel

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The Lunar Reconnaissance Orbiter Camera (LROC) Wide Angle Camera (WAC) has acquired more than 250,000 images of the illuminated lunar surface and over 190,000 observations of space and non-illuminated Moon since 1 January 2010. These images, along with images from the Narrow Angle Camera (NAC) and other Lunar Reconnaissance Orbiter instrument datasets are enabling new discoveries about the morphology, composition, and geologic/geochemical evolution of the Moon. Characterizing the inflight WAC system performance is crucial to scientific and exploration results. Pre-launch calibration of the WAC provided a baseline characterization that was critical for early targeting and analysis. Here we present an analysis of WAC performance from the inflight data. In the course of our analysis we compare and contrast with the pre-launch performance wherever possible and quantify the uncertainty related to various components of the calibration process. We document the absolute and relative radiometric calibration, point spread function, and scattered light sources and provide estimates of sources of uncertainty for spectral reflectance measurements of the Moon across a range of imaging conditions.

Original languageEnglish (US)
JournalSpace Science Reviews
DOIs
StateAccepted/In press - Sep 25 2015

Keywords

  • Calibration
  • LRO
  • LROC
  • Moon
  • Remote sensing
  • Wide angle camera

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Mahanti, P., Humm, D. C., Robinson, M., Boyd, A. K., Stelling, R., Sato, H., Denevi, B. W., Braden, S. E., Bowman-Cisneros, E., Brylow, S. M., & Tschimmel, M. (Accepted/In press). Inflight Calibration of the Lunar Reconnaissance Orbiter Camera Wide Angle Camera. Space Science Reviews. https://doi.org/10.1007/s11214-015-0197-0