Recommendation ITU-R P.1239-4
Policy on Intellectual Property Right (IPR)
Annex 1 Ionospheric characteristics
1 Introduction
2 Mapping functions
3 Prediction of foF2 and M(3000)F2
3.1 Monthly median values
3.2 Variability factors
4 Prediction of foE
5 Prediction of foF1
6 Prediction of foEs and fbEs
7 Prediction of h¢F and h¢F,F2
8 Prediction of the percentage of
occurrence of spread-F
9 Available computer programs and
reference data