Data
Because the CSO closed on September 18, 2015, only historical data are available.
Plots
Both 225 GHz and 350 μm measurements.
225 GHz measurements.
| Current | Previous | (since 1997 January) |
|---|---|---|
| Month | (YYYYMM) | |
| Month CDF | (YYYY_mMM) | |
| Quarter CDF | (YYYY_qQ) |
Historical Data
225 GHz measurements.
| Today | ||
| since 2009 January 1: | (YYYYMMDD) | |
| 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 | ||
| 1999 1998 1997 | ||
| 1989-2000 | ||
Instruments
At the CSO, two tipping radiometers measure the atmospheric transparency (optical depth).