Mees White Light Telescope (MWLT)

Mees Solar Observatory routinely acquires digital full sun white light images with a high resolution CCD camera.

Image Co-Registration

The primary purpose of the MWLT images is to provide a reliable basis for co-registering imaging data from the Mees instruments with other imaging data, in particular with Yohkoh-SXT images. The original system (based on standard video format) was replaced by a new system with a high resolution CCD in August 1993. The images from the new system allow data co-registration with an accuracy of 1 to 2 arcseconds and may be of particular interest for a broader community.

Technical specifications

Optics:

Refractor, neutral density filter coated onto objective lens

Focal length = 600 mm, aperture = 60 mm

Wavelength = 460 nm, bandwith = 10 nm

Camera:

Kodak Megaplus Camera model 1.4

Image data:

1024 x 1024 pixels, 8 bit/pixel

Pixel size:

2.338 arcseconds square

Image rate:

1 image every 5 minutes from about 17 UT to 04 UT

(weather permitting)

The current MWLT system was designed and implemented by Jean-Pierre Wuelser.

Last modified: Fri May 24 17:34:42 HST 1996