Planets and Moons  ID: 11606

Landsat 8 Lunar Calibration

Every full moon, Landsat 8 turns its back on Earth. As the satellite's orbit takes it to the nighttime side of the planet, Landsat 8 pivots to point at the moon. It scans the distant lunar surface multiple times, then flips back around to continue its task of collecting land-cover information of the sunny side of Earth below.

These monthly lunar scans are key to ensuring the land-imaging instrument (the Operational Land Imager) aboard Landsat 8 is detecting light consistently. For this, engineers need a consistent source of light to measure. And while there are some spots on Earth – like the Sahara Desert or other arid sites - that reflect a relatively stable amount of light, nothing on our planet beats the moon, which lacks an atmosphere and has an unchanging surface, barring the odd meteorite.

The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. The first Landsat satellite launched in 1972 and Landsat 8 launched on February 11, 2013.


Credits

Chris Meaney (HTSI): Lead Animator
Matthew R. Radcliff (USRA): Video Editor
Brian Markham (NASA/GSFC): Interviewee
Susan M. Good (AI Solutions, Inc): Interviewee
Matthew R. Radcliff (USRA): Producer
Brian Markham (NASA/GSFC): Scientist
James R. Irons (NASA/GSFC): Scientist
Aaron E. Lepsch (ADNET): Project Support
Rob Andreoli (AIMM): Videographer
Kate Ramsayer (Telophase): Writer
Please give credit for this item to:
NASA's Goddard Space Flight Center

Short URL to share this page:
https://svs.gsfc.nasa.gov/11606

Missions:
Landsat
LDCM: Landsat Data Continuity Mission

This item is part of these series:
Narrated Movies
Landsat
LDCM

Goddard TV Tape:
G2014-023 -- Landsat Lunar Cal

Keywords:
SVS >> HDTV
SVS >> Landsat
SVS >> LDCM
NASA Science >> Planets and Moons