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OSNMAlib - Input: Septentrio Receiver @KULeuven

The purpose of this website is to provide an easy way of looking at the OSNMA related data transmitted by the Galileo satellites. It runs OSNMAlib in the background.

The last 12 OSNMA subframes processed by OSNMAlib are available in format at this [endpoint]. To understand the file, we also provide a [html|json].
The raw navigation data bits for the last 12 sub-frames are available at this [endpoint].

For more information about what is displayed in each field, take a look at the legend.

This board uses input from a Septentrio receiver located at the ESAT department of KU Leuven. You can expect to have a very clear open sky view, with satellites lower than 10 degrees of elevation.
Special thanks to Septentrio for the receiver and to Franco for the help setting the antenna up in the tower.


Last Subframe [GST]

1414 77640

Authenticated NMA Status
NMAS OPERATIONAL CID 1 CPKS NOMINAL
Tesla Chain in Force
PKID 2 HF SHA_256 MF HMAC_SHA_256
KS 128 TS 40 MACLT 34
MACLT Sequence [['00S', 'FLX', '04S', 'FLX', '12S', '00E'], ['00S', 'FLX', '00E', '12S', '00E', '12E']]
Public Key in Force
NPKID 2 NPKT ECDSA_P256 MID 1

OSNMA Tag Verification Inputs

Satellites in View 13
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 21 23 25 26 27 28 29 30 31 32 33 34 36
Satellites Transmitting OSNMA 7
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 21 23 25 26 27 28 29 30 31 32 33 34 36
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0506 15F15 0515 06F06 0506 3615
Key 396ae1771639a37edaae1379a3d41f95
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0906 06F06 0915 04F15 0906 2815
Key 396ae1771639a37edaae1379a3d41f95
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1306 21F15 1315 15F15 1306 0815
Key 396ae1771639a37edaae1379a3d41f95
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 04F15 1800 06F06 1800 2815
Key 396ae1771639a37edaae1379a3d41f95
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2306 21F15 2315 06F06 2306 0415
Key 396ae1771639a37edaae1379a3d41f95
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2606 21F15 2615 33F15 2606 1915
Key 396ae1771639a37edaae1379a3d41f95
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3106 06F06 3115 04F15 3106 2815
Key 396ae1771639a37edaae1379a3d41f95
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001011111 1414 57720 80 bits
N/A 1414 57720 8400 bits
0001011111 1414 57720 80 bits
03 0001001100 1414 46830 680 bits
N/A 1414 46740 1120 bits
0001001101 1414 46890 40 bits
04 0000000000 1414 77610 3320 bits
N/A 1414 76980 7520 bits
0000000000 1414 77310 560 bits
05 0000000001 1414 77610 200 bits
N/A 1414 77580 280 bits
0000000000 1414 77310 160 bits
06 0000000001 1414 77610 200 bits
N/A 1414 77580 2840 bits
0000000000 1414 77310 240 bits
07 0001101001 1414 63900 320 bits
N/A 1414 63900 9800 bits
0001101001 1414 63960 360 bits
08 0001011100 1414 56160 360 bits
N/A 1414 56160 4880 bits
0001011100 1414 56190 440 bits
09 0000000001 1414 77610 200 bits
N/A 1414 77580 1920 bits
0000000000 1414 77310 160 bits
10 0001011110 1414 57540 640 bits
N/A 1414 57600 3680 bits
0001011110 1414 57630 680 bits
11 0001100001 1414 59130 240 bits
N/A 1414 58920 1800 bits
0001100001 1414 59130 280 bits
12 0001011011 1414 56490 4960 bits
N/A 1414 55620 4200 bits
0001011011 1414 56490 2120 bits
13 0000000001 1414 77610 200 bits
N/A 1414 77580 6280 bits
0000000000 1414 77310 440 bits
14 - - -
- - -
- - -
15 0000000000 1414 77610 2120 bits
N/A 1414 76980 5520 bits
0000000000 1414 77310 320 bits
16 0001000100 1414 41970 680 bits
N/A 1414 41940 5080 bits
0001000100 1414 41940 640 bits
18 - - -
- - -
- - -
19 0001111101 1414 75780 120 bits
N/A 1414 75660 8640 bits
0001111101 1414 75720 80 bits
21 0000000000 1414 77610 2040 bits
N/A 1414 77040 10480 bits
0000000000 1414 77310 560 bits
23 0000000001 1414 77610 200 bits
N/A 1414 77580 6760 bits
0000000000 1414 77310 400 bits
25 0001010000 1414 49830 2800 bits
N/A 1414 49020 2640 bits
0001010000 1414 49830 760 bits
26 0000000001 1414 77610 200 bits
N/A 1414 77580 5920 bits
0000000000 1414 77310 600 bits
27 0001111110 1414 76740 640 bits
N/A 1414 76680 14320 bits
0001111110 1414 76710 600 bits
28 0001111010 1414 77610 22440 bits
N/A 1414 73800 5920 bits
0001111010 1414 77010 4160 bits
29 0001110100 1414 70620 480 bits
N/A 1414 70560 15400 bits
0001110100 1414 70590 440 bits
30 0001101100 1414 69510 13600 bits
N/A 1414 65520 9320 bits
0001101100 1414 69510 4720 bits
31 0000000001 1414 77610 200 bits
N/A 1414 77580 640 bits
0000000000 1414 77310 160 bits
32 0001001110 1414 51930 23600 bits
N/A 1414 51900 640 bits
0001001110 1414 51930 8400 bits
33 0001111011 1414 77610 2480 bits
N/A 1414 53820 4240 bits
0001111011 1414 77070 520 bits
34 0001110010 1414 73230 13280 bits
N/A 1414 69360 3760 bits
0001110010 1414 70410 1040 bits
36 0001101011 1414 64950 80 bits
N/A 1414 64860 3120 bits
0001101011 1414 64950 120 bits

Legend

Colour Codes

In general, green means available, grey inactive and red missing. The difference between inactive and missing is if we were expecting that item or not.

Additionaly, each ADKD type is encoded using a different colour. The ADKD type is relevant both for the tag type and the authenticated data.
The 4 ADKD types are: ADKD0, ADKD2, ADKD4, and ADKD12.

A dummy tag (indicated by a COP value of 0) is represented using a stripped pattern on top of the ADKD colour. Dummy tags do not authenticate data.

Tag Verification Inputs

A satellite card is created for each satellite seen in the last 30 seconds subframe.
SVID
ADKD 0/12 Word Types for this ADKD
ADKD 4 Word Types for this ADKD
Tags PRN_DFLXCOP PRN_DFLXCOP PRN_DFLXCOP PRN_DFLXCOP
Key Tesla Key bits in hexadecimal

Global Authenticated Data

This section is static: it always shows all satellites defined in the European GNSS Service Centre, regardless if they are currently in view of the receiver or not.
However, note that some satellites may be not operational or may not authenticate their own navigation message (e.g. SVID 14 and 18).
For precise information, check the gsc-europa website.
SVID Nav Data IOD Last GST Authenticated Accumulated Tag bits
N/A Last GST Authenticated Accumulated Tag bits
Nav Data IOD Last GST Authenticated Accumulated Tag bits