Our latest versions of O3 and stratospheric aerosol are now available for download from our web-site. The new version is V5-07. It is backwardly compatible with earlier 5-0x versions but now includes a complete error analysis and has much improved filtering of outlier data records. We have taken great care to ensure that the new V5-07 data product is essentially identical to earlier products and will not invalidate any previous trend analysis studies. We think you will like what you see.
Welcome to Odin-OSIRIS
Introduction
The OSIRIS instrument onboard the Odin spacecraft measures vertical profiles of spectrally dispersed, limb scattered sunlight from the upper troposphere into the lower mesosphere. On these pages you will find the user registration, documentation and browse imagery for Odin-OSIRIS Level 2 data products. OSIRIS has been in standard operation since November 2001 and routinely produces height profiles of O3, NO2 and stratospheric aerosols. The Odin satellite also runs a sub-millimeter radiometer (SMR) that measures profiles of many other atmospheric species.
The OSIRIS spectrograph measures from 274 nm to 810 nm with a single line of sight that is scanned through a range of tangent altitudes. Each scan typically ranges from 7 km to 65km or from 7 km to 100 km depending upon the mode and takes between 40 and 70 seconds to acquire.
The Odin satellite was operated until June 2007 as a joint mission between astronomy and aeronomy disciplines. 50% of the total observation time was dedicated to each discipline where time was split into 1 day segments. Odin has operated as a purely aeronomy mission since June 2007 with almost complete coverage.
The Odin orbit is a sun synchronous orbit at 6 pm/6 am local time. This restricts OSIRIS sunlit observations to the Northern hemisphere in May, June, July August and the Southern hemisphere in November, December, January and February.
