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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]

1418 188610

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 12
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 3
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0605 16F15 0415 0605 2305 0415
Key 5c1f638b42db36f8f042358a85952f98
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0905 36F15 2305 0905 0415 2305
Key 5c1f638b42db36f8f042358a85952f98
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1505 23F05 1315 1505 0515 1315
Key 5c1f638b42db36f8f042358a85952f98
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2105 19F15 1315 2105 2305 1315
Key 5c1f638b42db36f8f042358a85952f98
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2705 23F05 1315 2705 3015 1315
Key 5c1f638b42db36f8f042358a85952f98
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3205 05F15 0315 3205 3015 0315
Key 5c1f638b42db36f8f042358a85952f98
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3405 23F05 0515 3405 0315 0515
Key 5c1f638b42db36f8f042358a85952f98
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000110001 1418 182880 560 bits
N/A 1418 182880 6000 bits
0000110001 1418 182850 520 bits
03 0000111001 1418 188580 4200 bits
N/A 1418 187380 800 bits
0000111001 1418 188250 720 bits
04 0000110101 1418 185070 280 bits
N/A 1418 185040 2960 bits
0000110101 1418 185070 280 bits
05 0000110111 1418 188580 12120 bits
N/A 1418 186060 5680 bits
0000110111 1418 188250 680 bits
06 0000111011 1418 188580 160 bits
N/A 1418 188580 7520 bits
0000111010 1418 188280 560 bits
07 0000010100 1418 165480 400 bits
N/A 1418 165420 2480 bits
0000010100 1418 165480 360 bits
08 0000001101 1418 165330 11560 bits
N/A 1418 161340 2600 bits
0000001101 1418 165030 4640 bits
09 0000111011 1418 188580 160 bits
N/A 1418 188580 5960 bits
0000111010 1418 188280 560 bits
10 0000101000 1418 180930 8400 bits
N/A 1418 177060 840 bits
0000101000 1418 180930 480 bits
11 0000101110 1418 184110 5000 bits
N/A 1418 180900 2320 bits
0000101110 1418 183930 560 bits
12 0000011110 1418 172890 5680 bits
N/A 1418 171540 9440 bits
0000011110 1418 172710 1320 bits
13 0000110111 1418 188580 1920 bits
N/A 1418 147840 5320 bits
0000110111 1418 188250 360 bits
14 - - -
- - -
- - -
15 0000111011 1418 188580 160 bits
N/A 1418 188580 7080 bits
0000111010 1418 188280 560 bits
16 0000011001 1418 172170 9440 bits
N/A 1418 168180 9760 bits
0000011001 1418 172170 2280 bits
18 - - -
- - -
- - -
19 0000101000 1418 177300 240 bits
N/A 1418 177240 960 bits
0000101000 1418 177270 280 bits
21 0000111011 1418 188580 160 bits
N/A 1418 188580 2480 bits
0000111010 1418 188280 560 bits
23 0001111011 1418 154230 6520 bits
N/A 1418 151080 5680 bits
0001111011 1418 151530 1120 bits
25 0000100111 1418 176790 440 bits
N/A 1418 176760 2120 bits
0000100111 1418 176790 440 bits
26 0000000001 1418 156450 2160 bits
N/A 1418 154020 6480 bits
0000000001 1418 154050 520 bits
27 0000111011 1418 188580 160 bits
N/A 1418 188580 4120 bits
0000111010 1418 188280 560 bits
28 0000101110 1418 181260 800 bits
N/A 1418 181260 2520 bits
0000101110 1418 181260 760 bits
29 0000011101 1418 170670 240 bits
N/A 1418 170580 1720 bits
0000011101 1418 170610 200 bits
30 0000110111 1418 188580 8360 bits
N/A 1418 186000 4840 bits
0000110111 1418 187410 960 bits
31 0000001000 1418 161790 7880 bits
N/A 1418 157800 7960 bits
0000000111 1418 157830 760 bits
32 0000111011 1418 188580 160 bits
N/A 1418 188580 640 bits
0000111010 1418 188280 560 bits
33 0000001101 1418 164610 6360 bits
N/A 1418 161280 5680 bits
0000001101 1418 164430 1280 bits
34 0000111011 1418 188580 160 bits
N/A 1418 188580 2720 bits
0000111010 1418 188280 560 bits
36 0000110111 1418 188580 4800 bits
N/A 1418 186000 4280 bits
0000110111 1418 186090 40 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