Raw Satellite Ephemeris Packet

GNSS Compass Manager will automatically convert this packet to RINEX 3.02 format.

Raw Satellite Ephemeris Packet
Packet ID				61
Length				Varies
Read / Write				Read
Field #	Bytes Offset	Data Type	Size	Description
1	0	u32	4	Unix timestamp (seconds)
2	4	u8	1	Satellite System
3	5	u8	1	Satellite number (PRN)
For GPS Satellites (132 bytes)
5	6	u32	4	Time of ephemeris (Toe) (s)
6	10	u16	2	Issue of Data Clock [IODC] (s)
7	12	u16	2	Issue of Data Ephemeris [IODE] (s)
8	14	fp32	4	Satellite Clock Bias [af0] (s)
9	18	fp32	4	Satellite Clock Drift [af1] (s/s)
10	22	fp32	4	Satellite Clock Drift Rate [af2] (s/s/s)
11	26	fp32	4	Crs (m)
12	30	fp32	4	Delta N (rad/s)
13	34	fp64	8	M0 (rad)
14	42	fp32	4	Cuc (rad)
15	46	fp64	8	Eccentricity [e]
16	54	fp32	4	Cus (rad)
17	58	fp64	8	√A (√m)
18	66	fp32	4	Cic (rad)
19	70	fp64	8	OMEGA0 (rad)
20	78	fp32	4	Cis (rad)
21	82	fp64	8	i0 (rad)
22	90	fp32	4	Crc (m)
23	94	fp64	8	Omega (rad)
24	102	fp64	8	Omega dot (rad/s)
25	110	fp64	8	IDOT (rad/s)
26	118	fp32	4	TGD (s)
27	122	u16	2	Ephemeris week number
28	124	u32	4	Transmission time (s)
29	128	u16	2	User range accuracy (m)
30	130	u16	2	GPS Flags
For GLONASS satellites (94 Bytes)
5	6	fp32	4	Satellite clock bias (s)
6	10	fp32	4	Satellite frequency bias [gamma]
7	14	fp64	8	Satellite position X (m)
8	22	fp64	8	Satellite position Y (m)
9	30	fp64	8	Satellite position Z (m)
10	38	fp64	8	Satellite velocity X (m/s)
11	46	fp64	8	Satellite velocity Y (m/s)
12	54	fp64	8	Satellite velocity Z (m/s)
13	62	fp64	8	Satellite acceleration X (m/s/s)
14	70	fp64	8	Satellite acceleration Y (m/s/s)
15	78	fp64	8	Satellite acceleration Z (m/s/s)
16	86	u32	4	Message frame start time (s)
17	90	u8	1	Age of operational information [E] (days)
18	91	s8	1	Frequency slot number
19	92	u8	1	Satellite Health
20	93	u8	1	Reserved

GPS Flags