SMTO Weather Conditions

SMTO Weather Information:

Last measurement done on 18-OCT-2017 at 23:15 MST.

Temperature Pressure Humidity Wind Speed Wind Direction Tau
Current 47.8°F / 8.8°C 20.7 in. Hg / 699.5 hPa 56.8% 1.0 mph / 0.4 m/s 146.0° 0.710
1 hour low 47.8°F / 8.8°C 20.7 in. Hg / 699.5 hPa 56.0% 0.0 mph / 0.0 m/s 135.0° 0.601
1 hour high 48.1°F / 8.9°C 20.7 in. Hg / 699.9 hPa 56.0% 5.0 mph / 2.2 m/s 164.0° 1.079
24 hour low 45.5°F / 7.5°C 20.5 in. Hg / 693.7 hPa 38.4% 1.0 mph / 0.4 m/s 191.0° 0.214
24 hour high 58.4°F / 14.6°C 21.1 in. Hg / 713.1 hPa 74.5% 17.0 mph / 7.6 m/s 156.0° 1.439


Current Atmospheric Opacity:

The most recent tau measurement was done on 18-OCT-2017 at 23:22 MST.

Tau(225 GHz) = 0.710 (Click here to see a fit to this measurement)

Spectral Line Frequency (GHz) Opacity
12CO J=2-1230 0.99
12CO J=3-2345 2.42
12CO J=4-3460 7.96
[C I]809 13.14

Note: The scaling factors are now derived from actual skydips in the given bands. We use a tau and frequency averaged constant for each band. The old numbers (before February, 25th, 1999 were theoretical numbers calculated from atmospheric models. We do not show 492 and 691 GHz numbers because we do not yet have enough data points to calculate the factors.

You can also browse the SMTO Weather Statistics Page for a summary of all recent tau(225 GHz) measurements.