TABLE 4

Message Types of IGS SSR (IGS, 2020)

Content	GPS	GLONASS	Galileo	QZSS	BeiDou	SBAS
Orbit	21	41	61	81	101	121
Clock	22	42	62	82	102	122
Combined Orbit and Clock	23	43	63	83	103	123
High-rate Clock	24	44	64	84	104	124
Code Bias	25	45	65	85	105	125
Phase Bias	26	46	66	86	106	126
URA	27	47	67	87	107	127
Ionosphere VTEC Spherical Harmonics	201