Difference between revisions of "July 27, 2012"
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=Amazing Graces= | =Amazing Graces= | ||
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| − | <em>image by [mailto:vontom24@gmail.com Tom Harradine]</em><br /> | + | <em>image by [mailto:vontom24@gmail.com" rel="nofollow Tom Harradine]</em><br /> |
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| − | A couple of nights ago I was taking a video of the Moon when two satellites passed close by, about 26 seconds apart. Calsky.com revealed them to be the satellites GRACE 1 and GRACE 2 (nicknamed "Tom" and "Jerry" ;). [http://www.nasa.gov/mission_pages/Grace/index.html GRACE] stands for Gravity Recovery And Climate Experiment. These two satellites trail each other 220km apart and measure the gravitational field of the Earth with particular focus on the polar ice caps and their changing mass over time. This is very much like the mission for the GRAIL spacecraft orbiting the Moon.<br /> | + | A couple of nights ago I was taking a video of the Moon when two satellites passed close by, about 26 seconds apart. Calsky.com revealed them to be the satellites GRACE 1 and GRACE 2 (nicknamed "Tom" and "Jerry" ;). [http://www.nasa.gov/mission_pages/Grace/index.html" rel="nofollow GRACE] stands for Gravity Recovery And Climate Experiment. These two satellites trail each other 220km apart and measure the gravitational field of the Earth with particular focus on the polar ice caps and their changing mass over time. This is very much like the mission for the GRAIL spacecraft orbiting the Moon.<br /> |
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| − | <em>[mailto:vontom24@gmail.com Tom Harradine]</em><br /> | + | <em>[mailto:vontom24@gmail.com" rel="nofollow Tom Harradine]</em><br /> |
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Revision as of 22:34, 4 January 2015
Amazing Graces
image by " rel="nofollow Tom Harradine
A couple of nights ago I was taking a video of the Moon when two satellites passed close by, about 26 seconds apart. Calsky.com revealed them to be the satellites GRACE 1 and GRACE 2 (nicknamed "Tom" and "Jerry" ;). " rel="nofollow GRACE stands for Gravity Recovery And Climate Experiment. These two satellites trail each other 220km apart and measure the gravitational field of the Earth with particular focus on the polar ice caps and their changing mass over time. This is very much like the mission for the GRAIL spacecraft orbiting the Moon.
" rel="nofollow Tom Harradine
