Communications via satellite (propagation, absorption) - severe GNSS-based navigation and surveillance (degradation) - severe GNSS-based navigation and surveillance (degradation) - severe GNSS_SEV HF communications (propagation, absorption) - moderate HF communications (propagation, absorption) - moderate HF_COM_MOD Radiation at flight levels (increased exposure) - moderate Radiation at flight levels (increased exposure) - moderate RADIATION_MOD The items within this code table are the types of space weather phenomena of significance to aeronautical operations Communications via satellite (propagation, absorption) - moderate Communications via satellite (propagation, absorption) - moderate SATCOM_MOD GNSS-based navigation and surveillance (degradation) - moderate GNSS-based navigation and surveillance (degradation) - moderate GNSS_MOD Communications via satellite (propagation, absorption) - severe Communications via satellite (propagation, absorption) - severe SATCOM_SEV Space Wx Phenomena 1 Radiation at flight levels (increased exposure) - severe Radiation at flight levels (increased exposure) - severe RADIATION_SEV HF communications (propagation, absorption) - severe HF communications (propagation, absorption) - severe HF_COM_SEV 2019-03-20T16:54:58.099Z marqH https://api.github.com/users/marqh 2021-11-16T10:09:16.874Z SATCOM_SEV 2 2019-03-20T16:54:58.227Z Communications via satellite (propagation, absorption) - severe Radiation at flight levels (increased exposure) - severe 2019-03-20T16:54:58.229Z 2021-11-16T10:08:50.11Z Radiation at flight levels (increased exposure) - severe RADIATION_SEV 2 marqH https://api.github.com/users/marqh 2019-03-20T16:54:58.164Z 2021-11-16T10:09:04.682Z HF_COM_MOD 2 HF communications (propagation, absorption) - moderate marqH https://api.github.com/users/marqh HF communications (propagation, absorption) - moderate marqH https://api.github.com/users/marqh 2019-03-20T16:54:58.162Z GNSS-based navigation and surveillance (degradation) - severe 2 GNSS_SEV 2021-11-16T10:09:08.853Z GNSS-based navigation and surveillance (degradation) - severe Communications via satellite (propagation, absorption) - moderate 2 Communications via satellite (propagation, absorption) - moderate marqH https://api.github.com/users/marqh 2021-11-16T10:09:21.454Z SATCOM_MOD 2019-03-20T16:54:58.169Z Space Wx Phenomena The items within this code table are the types of space weather phenomena of significance to aeronautical operations marqH https://api.github.com/users/marqh 2 SpaceWxPhenomena 2019-03-20T16:54:58.099Z 2021-11-16T10:08:31.326Z Radiation at flight levels (increased exposure) - moderate 2019-03-20T16:54:58.166Z RADIATION_MOD Radiation at flight levels (increased exposure) - moderate marqH https://api.github.com/users/marqh 2021-11-16T10:08:56.66Z 2 2021-11-16T10:09:12.726Z marqH https://api.github.com/users/marqh GNSS-based navigation and surveillance (degradation) - moderate GNSS_MOD 2019-03-20T16:54:58.188Z GNSS-based navigation and surveillance (degradation) - moderate 2 2 2021-11-16T10:09:00.787Z 2019-03-20T16:54:58.231Z HF communications (propagation, absorption) - severe HF communications (propagation, absorption) - severe marqH https://api.github.com/users/marqh HF_COM_SEV