The masses and types of ions are well known for certain ionospheric regions such as the F region from 200 to 400 km and not as well known for other regions like the upper E region between approximately 130 and 230 km. More extensive modeling is necessary to derive the neutral temperature, neutral wind, and electric fields, among other parameters. It is important to note that there are programs which can be used to derive the other parameters but they require the efforts of a staff scientist to first precisely calibrate the data and then to set up the programs to run them, similar to the fact that neutral temperature, winds, intensity, and tidal analysis all require effort to be extracted from optical spectra. These strategies become complicated rather quickly, and you should contact John Holt or Phil Erickson if you would like further information. In the region below 130 km, the program first attempts to fit Ti and Te separately.
Te is is bad.
Users are encouraged to contact a MHO staff member for guidance in using data from this altitude region. Where to find MHO web information 1. Through the catalog, you will then find the one sentence summary of the purpose of the experiment followed by the exact specification of the pulse modes and cycle times. The other experiments are not as suitable for comparison with ground-based optical data, so please contact MHO if you need help with those. Madrigal Database Steve Cariglia maintains the Madrigal database, which includes the Madrigal database manual , the Madrigal database table of contents , information about each experiment run eg.