Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...441..839b&link_type=abstract
Astronomy and Astrophysics, Volume 441, Issue 2, October II 2005, pp.839-843
Astronomy and Astrophysics
Astrophysics
6
Site Testing, Turbulence, Methode: Data Analysis
Scientific paper
In order to complete characterization of the Oukaïmeden site and hoping to prospect other sites in the Moroccan High Atlas, we constructed a seeing monitor. We named the instrument DIMMAR for Differential Image Motion Monitor of Marrakesh. After more than one year of operation, we can conclude that the DIMMAR is quite reliable and that it can be a prototype for other similar low-cost instruments. In this work, the seeing measured at Oukaïmeden site using the DIMMAR on top of a 5 meters high tower is presented. Statistics from fifteen months seeing's are treated (from July 19, 2003 up to September 26, 2004). The median and mean zenith seeing for the entire period of observations are 0.84´´ and 0.92´´, respectively, at 0.5 μm (or 0.96´´ and 1.05´´, if corrected for exposure-time bias). The best seeing value measured is 0.32´´.
Abahamid Abdelouahed
Benkhaldoun Zouhai
El Azhari Youssef
Lazrek Mohamed
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