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