Access to Astronomical Catalogues

← Click to display the menu
J/AJ/114/2822                    Seeing Tests for NPOI Project (Hutter+ 1997)

Seeing tests at four sites in support of the NPOI project Hutter D.J., Elias II N.M., Peterson E.R., Weaver W.B., Weaver G., Mozurkewich D., Vrba F.J., Simon R.S., Buscher D.F., Hummel C.A. <Astron. J. 114, 2822 (1997)> =1997AJ....114.2822H
ADC_Keywords: Earth Abstract: This paper reports astronomical seeing measurements made at four sites in the western United States during 1991-92. This study was conducted as part of the site selection process for the Navy Prototype Optical Interferometer. An extensive series of observations were made at Chews Ridge and Anderson Ridge, CA (∼36,000 equivalent FWHM seeing estimates). Observations made from Chews Ridge over 49 nights yield an average FWHM seeing value of ∼1.1", while those made from Anderson Ridge over 34 nights yield an average FWHM seeing of ∼1.4". However, observations made from Anderson Ridge at a location away from any nearby trees indicate that more open sites in that area may enjoy seeing comparable to that measured at Chews Ridge. Simultaneous free-air, ground-level observations at the U.S. Naval Observatory's Flagstaff Station and at Anderson Mesa, both near Flagstaff, AZ, yield similar seeing values to each other (≤0.1" difference). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table.dat 39 42508 Seeing measurements
Byte-by-byte Description of file: table.dat
Bytes Format Units Label Explanations
1- 8 A8 "DD/MM/YY" Date Observation date 10 A1 --- Tel [abv] Telescope (1) 12- 20 F9.6 h UTC UTC time of the observation 22- 30 F9.6 deg Gamma Zenith angle of the observation 32- 39 F8.6 arcsec Seeing Full-width-at-half-maximum (FWHM) seeing
Note (1): a: 'Unit A' seeing monitor b: 'Unit B' seeing monitor v: 1.55 m NOFS telescope
Origin: AAS CD-ROM series, Volume 9, 1997 Lee Brotzman [ADS] 04-Nov-1997
(End) Patricia Bauer [CDS] 05-Feb-1998
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact