D3.4
Lead Beneficiary: UNIGRAZ
Beneficiaries involved: OBSPARIS
Due Date: month 30
Contents |
Goal
Development of a Ca-II K telescope and improvement of the H-alpha flare patrol telescope system at Kanzelhöhe observatory (UNIGRAZ). Development of a new set of full disk imaging instruments (multi channel heliograph) in order to make observations of the solar chromosphere (OBSPARIS). High cadence observations in H-Alpha and Ca-II K will be put at disposal to all participants.
Successes
Until now, the develpment of the telescope systems are in time. Progress is as expected.
Exceptional Discoveries
None yet.
Progress so far
Kanzelhöhe (UNIGRAZ)
On the H-alpha telescope system extensive tests were performed using the new 4Mpx CCD-camera. First results from the images taken in the H-alpha channel exhibited a significant intensity asymmetry and a contrast decrease (most strinking in east-west direction). The same intensity asymmetry was also found in the images taken by the old 1 Mpx CCD-camera. By rotating the camera for various angles it clearly showed that the problem originated not from the camera itself but from within the telescope, most propably before the first focal point. The precise re-alignment of all optical components in the light path could completely solve the problem (contrast, asymmetry of intensity).
Further testing was done on the dark current images of the new 4Mpx CCD-camera. The combination of several dark images could enhance the quality of the final dark frame. Using the average of 20 dark current images was found as an optimum, averaging of more dark images is not improving this parameter significantly.
The development of the new Ca-II K system was started with the design phase.
Persons involved on this deliverable: Wolfgang Otruba, Heinrich Freislich, Werner Pötzi, Manuela Temmer, Astrid Veronig, Arnold Hanslmeier
Meudon (OBSPARIS)
Progress of CaH observations
2200 x 2200 pixels
10 bits
Central WaveLength: 396.85 nm
Full Width at Half Maximum: 0.15 nm
systematic observations, 3 images/day
deliverable: May 2009
Progress of CaK observations
2000 x 2000 pixels
12 bits
Central WaveLength: 393.37 nm
Full Width at Half Maximum: 0.15 nm
systematic observations, 3 images/day
deliverable: July or autumn 2009
Progress of Fast Halpha observations
2200 x 2200
10 bits
Central WaveLength: 656.28 nm
Full Width at Half Maximum: 0.03 nm
systematic observations, 1 image/minute or more
deliverable: spring 2010
Data will be freely available on line at BASS2000: http://bass2000.obspm.fr
Persons involved part time: Jean-Marie Malherbe, Isabelle Bualé, Marion Bonafous, Frédéric Dauny, Sylvain Cnudde
Problem areas
None.
Suggestions for spin-off, collaboration or improvement
None.
