SITE SURVEYS

Campaigns to evaluate seeing, the overhead water vapor burden, and other relevant meteorological parameters are being conducted in the Chajnantor region. The objective is to select the best location for the observatory.

A DIMM is used to make measurements of the optical seeing at 0.5 micron and radiosondes are used to obtain temperature and water vapor profiles.

Some details on the goal and history of the campaign can be found here.

 

R. Giovanelli, P. Harvey and J. Darling, setting up for the July 1998 run.

Results from the campaigns are given in the table below. Click on the "Campaign Run" name for some chatty info on the run.

A list of participants in each Campaign Run can be found here.

Photos of the Cerro Chajnantor Site

Site Survey Data

Campaign Run

Survey Location

Seeing Results

Radiosonde
Results

Data Summary

Cerro Chico

X

 

Chico vs. Paranal

--

X

 

May 1998

MMA Site

X

 

July 1998

Cerro Chico

X

 

October 1998

Cerro Chico

X

X

December 1998

Cerro Chico

X

X

March 1999

Cerro Chico

 

X

November 1999

--

--

X

April 2000

Cerro Chico
Honar

X
X

X

July 2000

Cerro Chico

X

X

Oct-Nov 2000

Cerro Chico
Honar

X
X

X
X

March-April 2001

Cerro Chico
Honar
Negro

--
--
--

X
X
--

The Optical/Infrared Astronomical Quality of High Atacama Sites. I. Preliminary Results of Optical Seeing

The Optical/Infrared Astronomical Quality of High Atacama Sites. II. Infrared Characteristics

Page first set up by J. Darling; updated 10/15/03 by K. Consroe