Generalized SCIDAR Measurements at Mount Graham

Citations Over TimeTop 10% of 2007 papers

Abstract

We present the results of optical turbulence measurements conducted with a Generalized SCIDAR (scintillation detection and ranging) at Mount Graham during 16 nights in 2004 and 2005 at the Vatican Advanced Technology Telescope. The principle of the data reduction process is shown, as is the validation of the obtained results. From the measured C2N and wind speed profiles, the astroclimatic parameters, such as seeing 0, isoplanatic angle ϑ0, wave‐front coherence time τ0, and isopistonic angle ϑP, are calculated, and their seasonal variation is studied. With subtraction of the dome seeing, we obtained median values for 0 (0.67''), ϑ0 (2.7''), τ0 (3.6 ms), and ϑP (3.3'') that indicate that the astronomical seeing at Mount Graham is comparable to the best sites in the world. The seasonal variation of the vertical structure of the C2N profiles is studied, and the contribution by the ground‐layer turbulence is analyzed. Furthermore, typical discretized C2N profiles that are suitable for numerical simulations are determined.

Related Papers

• → Evaluation of time-based ranging methods: Does the choice matter?(2017)13 cited
• → Performance Comparison of Asynchronous Ranging Algorithms(2009)13 cited
• → Ranging-Aided Ground Robot Navigation Using UWB Nodes at Unknown Locations(2022)4 cited
• → Ranging Sensor Fusion in LISA Data Processing: Treatment of Ambiguities, Noise, and On-Board Delays in LISA Ranging Observables(2023)
• → Performance Analysis of Ranging Techniques for the KPLO Mission(2018)