Difference between revisions of "September 23, 2010"
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| − | <em>[http://www.flickr.com/photos/gsfc/5003421192/ | + | <em>[http://www.flickr.com/photos/gsfc/5003421192/ Image] by Debbie McCallum [http://www.nasa.gov/centers/goddard/news/features/2010/moon-night.html NASA/GSFC]</em> Goddard's Laser Ranging Facility directs a laser toward the Lunar Reconassaince Orbiter on International Observe the Moon Night. (Sept 18, 2010)<br /> |
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| − | No, this is not deep sky observers answer to Moonlit nights! The picture above is not an attempt at blowing our Moon to smithereens to give month long darks skies, it is NASA Goddard pinging the LRO spacecraft with laser pulses on International Observe the Moon Night ([/September+16%2C+2010 InOMN]). In this particular experiment above the LRO-Laser Ranging experment, the [http://the-moon.wikispaces.com/LRO LRO spacecraft] [http://lunar.gsfc.nasa.gov/lola/index.html | + | No, this is not deep sky observers answer to Moonlit nights! The picture above is not an attempt at blowing our Moon to smithereens to give month long darks skies, it is NASA Goddard pinging the LRO spacecraft with laser pulses on International Observe the Moon Night ([/September+16%2C+2010 InOMN]). In this particular experiment above the LRO-Laser Ranging experment, the [http://the-moon.wikispaces.com/LRO LRO spacecraft] [http://lunar.gsfc.nasa.gov/lola/index.html LOLA instrument] has a receiver pointed at Earth that detects the laser pulses and then feeds the data back to the ground along with the usual surface LOLA ping data. The purpose is to give an accurate position of the spacecraft in order to make a better map of the Moon from the LOLA surface pings. The laser pulses are sent up to LRO at 28 pulses per second, out of phase to the surface pings, using a less powerful laser than that needed for the surface retroreflectors so it can be conducted with smaller telescopes and more often, in some cases around the clock, whenever the Moon is visible. The laser beams are made visible by moisture in the atmosphere on humid nights.<br /> |
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| − | [mailto:mauricejscollins@hotmail.com | + | [mailto:mauricejscollins@hotmail.com Maurice Collins]<br /> |
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<strong>Technical Details</strong><br /> | <strong>Technical Details</strong><br /> | ||
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<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
| − | [http://www.nasa.gov/mission_pages/LRO/news/LRO_lr.html | + | [http://www.nasa.gov/mission_pages/LRO/news/LRO_lr.html Background on LRO laser ranging]<br /> |
| − | [http://lrolr.gsfc.nasa.gov | + | [http://lrolr.gsfc.nasa.gov LRO-LR]<br /> |
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| − | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 | + | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 LPOD!]<br /> |
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===COMMENTS?=== | ===COMMENTS?=== | ||
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | ||
Revision as of 21:37, 5 January 2015
Shoot the Moon - Inomn
Image by Debbie McCallum NASA/GSFC Goddard's Laser Ranging Facility directs a laser toward the Lunar Reconassaince Orbiter on International Observe the Moon Night. (Sept 18, 2010)
No, this is not deep sky observers answer to Moonlit nights! The picture above is not an attempt at blowing our Moon to smithereens to give month long darks skies, it is NASA Goddard pinging the LRO spacecraft with laser pulses on International Observe the Moon Night ([/September+16%2C+2010 InOMN]). In this particular experiment above the LRO-Laser Ranging experment, the LRO spacecraft LOLA instrument has a receiver pointed at Earth that detects the laser pulses and then feeds the data back to the ground along with the usual surface LOLA ping data. The purpose is to give an accurate position of the spacecraft in order to make a better map of the Moon from the LOLA surface pings. The laser pulses are sent up to LRO at 28 pulses per second, out of phase to the surface pings, using a less powerful laser than that needed for the surface retroreflectors so it can be conducted with smaller telescopes and more often, in some cases around the clock, whenever the Moon is visible. The laser beams are made visible by moisture in the atmosphere on humid nights.
Maurice Collins
Technical Details
Above is the concept behind how the LRO-LR experiment works.
Related Links
Background on LRO laser ranging
LRO-LR
COMMENTS?
Click on this icon File:PostIcon.jpg at the upper right to post a comment.
