Raw Satellite Ephemeris Packet

Boreas Manager will automatically convert this packet to RINEX 3.02 format.

Note: This packet is enabled automatically when packet 60 (Raw Satellite Data Packet) is enabled. This packet cannot be enabled independently of Packet 60.

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

Raw Satellite Ephemeris Packet

GPS Flags

Bit Description

0

Data flag for L2 P-code

1-2

Codes on L2 channel

3

Anti-spoof flag

4-9

Satellite health

10

Fit interval flag

11

URA bad

12-14

Satellite block type

GPS Flags