| Issue |
2010
|
|
|---|---|---|
| Article Number | 02005 | |
| Number of page(s) | 6 | |
| Section | AO systems and instrumental concepts | |
| DOI | https://doi.org/10.1051/ao4elt/201002005 | |
| Published online | 24 February 2010 | |
Requirements for AO-ELT operation and ELT site monitor
Cerro Tololo Inter-American Observatory. Casilla 603, La
Serena, Chile
a e-mail: atokovinin@ctio.noao.edu
Performance of AO systems on ELTs depends not just on seeing; other parameters such as strength of high-altitude turbulence are more relevant for the laser tomography. Nights good for some instruments are not so good for others, so there is a clear advantage to go from the simple queue scheduling on seeing to a more complex strategy of selecting in a multi-parameter space. The need to know those atmospheric parameters in real time drives the requirements to the ELT site monitors and their data. It is suggested to measure atmospheric parameters and internal seeing along the line of sight by an internal seeing monitor, complementing the external site monitor.
© Owned by the authors, published by EDP Sciences, 2010