Missing enumerate entries needed for recent antex files
The latest antex files available in IGS download area use several new entries that are not present in Orekit and should be added.
There are two frequencies for Beidou system: C05 and C08 There are 6 Beidou 3 satellites (BEIDOU-3SI-SECM, BEIDOU-3SI-CAST, BEIDOU-3M-CAST, BEIDOU-3SM-CAST, BEIDOU-3M-SECM, BEIDOU-3G-CAST) There is one QZSS satellite (QZSS-2A)