SIM astrometric demonstration at the 150 picometer level using the MAM testbed
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interferometry↗
Engineering topics
Catanzarite, Joe
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Boot strapping star position and baseline knowledge with uncalibrated SIM observations
An external calibration technique for SIM involves measurement of calibration stars whose positions must already be known to an accuracy of 2 milliarcseconds. We demonstrate a procedure that effectively 'bootstraps' calibration star positions from an ab initio catalog to the required accuracy by observing them with the uncalibrated SIM instrument.
astrometry↗