| National Radio Astronomy Observatory |
|
| Chajnantor | Mauna Kea | South Pole | ||||
|---|---|---|---|---|---|---|
| CSO | VLBA | |||||
| start | 1995 Apr | 1997 Jan | 1995 Mar | 1992 Jan | 1992 Mar | 1992 Jan |
| stop | 2003 Oct | 2003 Oct | 1996 Jun | 1992 Mar | 1992 Jun | 1992 Dec |
| uptime | 85% (gif, ps.gz) | 76% (gif, ps.gz) | 75% (gif, ps.gz) | |||
| Comparison of Zenith optical depth: gif, ps.gz | ||||||
| 75% | 0.122 | 0.179 | 0.260 | 0.093 | 0.060 | 0.066 |
| 50% | 0.061 | 0.103 | 0.130 | 0.075 | 0.047 | 0.053 |
| 25% | 0.037 | 0.064 | 0.075 | 0.061 | 0.039 | 0.043 |
| distribution | gif, ps.gz, dat | gif, ps, dat | gif, ps.gz, dat | gif, ps.gz, dat | ||
| Comparison of optical depth at median airmass (A < 2): gif, ps.gz | ||||||
| Amed | 1.1 | 1.1 | 1.35 | |||
| 75% | 0.134 | 0.197 | 0.286 | 0.126 | 0.078 | 0.088 |
| 50% | 0.067 | 0.113 | 0.143 | 0.105 | 0.063 | 0.070 |
| 25% | 0.041 | 0.070 | 0.083 | 0.082 | 0.053 | 0.057 |
| source | ALMA/US | CSO | ALMA/US | Chamberlin & Bally, 1994 & 1995 | ||
Chamberlin, R. A., and Bally, J., 1994, Appl. Opt. 33, 1095
Chamberlin, R. A., and Bally, J., 1995, Int. J. IR MM Waves 16, 907
Not all links are active. Formats: ascii (dat), gif, postscript (ps).
