The meteorological stations of the 1.5 and 0.84 m telescopes of the OAN: description and results
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2001
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| _version_ | 1876475872870924288 |
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| author | E. Arroyo |
| author_facet | E. Arroyo |
| contents | The meteorological stations of the 1.5 and 0.84 m telescopes of the OAN: description and results E. Arroyo J. Bohigas S. Zazueta R. Michel Física, Astronomía y Matemáticas SITE TESTING INSTRUMENTATION ATMOSPHERIC EFFECTS Meteorological stations for the 1.5 and 0.84 m telescopes at the ObservatorioAstronómico Nacional at San Pedro Mártir (OAN) are described. The stations includedevices for measuring temperature, atmospheric pressure, relative humidityand wind conditions. All the meteorological variables are monitored continuouslyand mean values are determined every 5 minutes and written on the hard disk ofthe control computer. This information is continuously refreshed in an HTML pagethat can be accessed from the OAN home page. In this paper we present the resultsof measurements taken over 2 years. We find that both primary mirrors aresubstantially warmer than the surrounding air during the night (up to 5 C).This thermal gradient degrades image quality. For the primary mirror of the 1.5 mtelescope this effect can be corrected with a temperature control system. For the0.84 m telescope, where the primary mirror is located in a closed structure, ventilatorsmoving air from the dome into the closed tube may suffice. During the nightthe air is colder within both domes than outside, and we conclude that no domeventilation is necessary in these telescopes. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57137205 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.37 |
| format | Artículo científico |
| id | redalyc_57137205 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | The meteorological stations of the 1.5 and 0.84 m telescopes of the OAN: description and results E. Arroyo Física, Astronomía y Matemáticas SITE TESTING INSTRUMENTATION ATMOSPHERIC EFFECTS The meteorological stations of the 1.5 and 0.84 m telescopes of the OAN: description and results E. Arroyo J. Bohigas S. Zazueta R. Michel Física, Astronomía y Matemáticas SITE TESTING INSTRUMENTATION ATMOSPHERIC EFFECTS Meteorological stations for the 1.5 and 0.84 m telescopes at the ObservatorioAstronómico Nacional at San Pedro Mártir (OAN) are described. The stations includedevices for measuring temperature, atmospheric pressure, relative humidityand wind conditions. All the meteorological variables are monitored continuouslyand mean values are determined every 5 minutes and written on the hard disk ofthe control computer. This information is continuously refreshed in an HTML pagethat can be accessed from the OAN home page. In this paper we present the resultsof measurements taken over 2 years. We find that both primary mirrors aresubstantially warmer than the surrounding air during the night (up to 5 C).This thermal gradient degrades image quality. For the primary mirror of the 1.5 mtelescope this effect can be corrected with a temperature control system. For the0.84 m telescope, where the primary mirror is located in a closed structure, ventilatorsmoving air from the dome into the closed tube may suffice. During the nightthe air is colder within both domes than outside, and we conclude that no domeventilation is necessary in these telescopes. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57137205 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.37 |
| title | The meteorological stations of the 1.5 and 0.84 m telescopes of the OAN: description and results |
| topic | Física, Astronomía y Matemáticas SITE TESTING INSTRUMENTATION ATMOSPHERIC EFFECTS |
| url | https://www.redalyc.org/articulo.oa?id=57137205 |