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second |
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second (Backer), noun advocate, aide, angel, backer, champion, endorser, patron, promoter, supporter second (Moment), noun before you know it, brief peeiod of time, flash, flash of an eyelid, instant second verb approve, assist, authorize, back, back up, confirm, endorse, favor, pass, ratify, receipt, recommend, sanction, stand behind, subscribe, support, validate, vote for, warrant Associated concepts: second lien See also: abet, abettor, advocate, agree, aid, approve, assist, assistant, backer, bear, concur, confirm, countersign, deputy, endorse, help, indorse, justify, organize, point, proctor, promote, recommend, replacement, side, support, uphold SECOND. A measure equal to one sixtieth part of a minute. Vide Measure. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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These include pointing at 80 to 250 celestial targets with an accuracy of 5 to 10 arc seconds. We drew on our experience integrating more than 550 payloads to achieve alignments on the spacecraft platform within arc seconds (one arc second equals 1/3,600 degree). 2 arc seconds apart, registers in radio wavelengths, while both can be seen in the visible range. |
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