Shack-Hartmann Measurements on the APO 3.5m Telescope

In 1999 we installed a Shack-Hartmann sensor made by Spot-Optical on the 3.5m telescope. Since that time we have used it to make various measurements of the optics and support structures on the telescope. Below you will find links to reports using data from the Shack-Hartmann sensor.

• The Shack-Hartmann Sensor: Initial Trial Measurements
• Altitude Sweep Measurements
  • Initial Measurements of Telescope Tilt Coefficients: 14 Apr 00
  • Confirmation of Tilt Coefficient Parameters: 14 Jun 00
  • Tilt Coefficients, Astigmatism and Thermal Modeling of Truss: 14-15 Aug 00