IIA Logo Indian Astronomical Observatory  

2M HIMALAYAN CHANDRA TELESCOPE: CURRENT PERFORMANCE



  • The telescope tracking tests indicate that a tracking accuracy (without guiding) of 0.5 arcsec over 10 minutes is met at a good fraction of telescope positions, except at higher elevations, where the tracking worsens, resulting in a mean (over all telescope positions) accuracy of 1.38 arcsec over 10 minutes.

  • A pointing accuracy of 3 arcseconds has been achieved.

  • The image quality is estimated to be about 0.7 arcseconds diameter (80% power).

  • The autoguider (AUGUS) developed at the Copenhagen University Observatory was installed in May 2005 and commissioned in September 2005 (report). The AUGUS has been performing well, reaching 17 mag star in 4 second integration.