Current Atmospheric Opacity:
The most recent tau measurement was done on 19 - 8 - 1999 at 18: 0: 53 UT
Tau(86 GHz) = 0.202 (Correlation Coefficient = 0.999 )
(Click here to see a fit to this measurement)
(Next update in 1 hour.)
Rough extrapolation of 86 GHz opacity to other frequencies (based on Grossmans AT program)
| Spectral Line | frequency (GHz) | opacity |
| NH3 | 23.7 | 0.07 |
| CS J=1-0 | 48.99 | 1.21 |
| SiO J=2-1 | 86.84 | 0.20 |
| 12CO J=1-0 | 115.27 | 0.61 |
See the Tau values for:
the last day (GIF or PS), the last week (GIF or PS), the last two weeks (GIF or PS).
Atmospheric Transmission from 1-150 GHz for the measured tau, 0.201751