2018年7月6日
Commissioning status of the Greenland telescope
Ground-based and Airborne Telescopes VII
- 巻
- 10700
- 号
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- DOI
- 10.1117/12.2310046
- 出版者・発行元
- SPIE
The Greenland Telescope completed its construction, so the commissioning phase has been started since December 2017. Single-dish commissioning has started from the optical pointing, which produced the rst pointing model, followed by the radio pointing and focusing using the Moon for both the 86 GHz and the 230 GHz receivers. After Venus started to rise from the horizon, the focus positions has been improved for both receivers. Once we started the line pointing using the SiO(2-1) maser line and the CO(2-1) line for the 86 GHz and the 230 GHz receivers, respectively, the pointing accuracy also improved, and the nal pointing accuracy turned to be around 3 ''-5 '' for both receivers. In parallel, VLBI commissioning has been performed, with checking the frequency accuracy and the phase stability for all the components that would be used for the VLBI observations. After all the checks, we successfully joined the dress rehearsals and actual observations of the 86 GHz and 230 GHz VLBI observations. The rst dress rehearsal data between GLT and ALMA were correlated, and successfully detected the rst fringe, which con rmed that the GLT commissioning was successfully performed.
- リンク情報
- ID情報
-
- DOI : 10.1117/12.2310046
- ISSN : 0277-786X
- eISSN : 1996-756X
- Web of Science ID : WOS:000450858000062