Results of the Guide-2 telescope testbed for the SIM Light Astrometric Observatory

Details Results of the Guide-2 telescope testbed for the SIM Light Astrometric Observatory Results of the Guide-2 telescope testbed for the SIM Light Astrometric Observatory

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7734e.143h&link_type=abstract

Optical and Infrared Interferometry II. Edited by Danchi, William C.; Delplancke, Françoise; Rajagopal, Jayadev K. Proceeding

Astronomy and Astrophysics

Astrophysics

Scientific paper

The SIM Lite Astrometric Observatory is to perform narrow angle astrometry to search for Earth-like planets, and global astrometry for a broad astrophysics program, for example, mapping the distribution of dark matter in the Galaxy. The new SIM Lite consists of two Michelson interferometers and one star tracking telescope. The main six-meter baseline science interferometer observes a target star and a set of reference stars. The four-meter baseline interferometer (guide-1) monitors the attitude of the instrument in the direction of a target star. The Guide-2 telescope (G2T) tracks a bright star to monitor the attitude of the instrument in the other two orthogonal directions. A testbed has been built to demonstrate star-tracking capability of the G2T concept using a new interferometric angle metrology system. In the presence of simulated 0.2 arcsecond level of expected spacecraft attitude control system perturbations, the measured star-tracking capability of the G2T testbed system is less than 43 micro-arcsecond during single narrow angle observation.

Affiliated with

Also associated with

No associations

Rating

Results of the Guide-2 telescope testbed for the SIM Light Astrometric Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Results of the Guide-2 telescope testbed for the SIM Light Astrometric Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Results of the Guide-2 telescope testbed for the SIM Light Astrometric Observatory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1378844