Input Options:

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]

1409 273990

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 11
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 6
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0711 31F15 1315 0711 2915 1315
Key bc2971c7a8c779cd3dd86a436e9a3f4a
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0811 16F15 1315 0811 3215 1315
Key bc2971c7a8c779cd3dd86a436e9a3f4a
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1211 09F15 3115 1211 1115 3115
Key bc2971c7a8c779cd3dd86a436e9a3f4a
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2311 11F15 3115 2311 2915 3115
Key bc2971c7a8c779cd3dd86a436e9a3f4a
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2611 16F15 1315 2611 3115 1315
Key bc2971c7a8c779cd3dd86a436e9a3f4a
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3311 13F15 3115 3311 1615 3115
Key bc2971c7a8c779cd3dd86a436e9a3f4a

Authenticated Data

02 0000011011 1409 245940 440 bits
N/A 1409 245880 9560 bits
0000011011 1409 245910 400 bits
03 0001001001 1409 273450 160 bits
N/A 1409 273420 2640 bits
0001001001 1409 273420 120 bits
04 0000111000 1409 265710 5440 bits
N/A 1409 262920 1240 bits
0000111000 1409 262950 120 bits
05 0000111111 1409 267480 560 bits
N/A 1409 267420 3680 bits
0000111111 1409 267450 520 bits
06 0000111001 1409 266160 7560 bits
N/A 1409 263940 400 bits
0000111001 1409 265710 1120 bits
07 0001001010 1409 273960 400 bits
N/A 1409 273960 1880 bits
0001001001 1409 273660 800 bits
08 0001001010 1409 273960 400 bits
N/A 1409 273960 960 bits
0001001001 1409 273660 360 bits
09 0000111100 1409 265380 160 bits
N/A 1409 265380 3200 bits
0000111100 1409 265410 200 bits
10 0000010010 1409 241860 3080 bits
N/A 1409 240480 2680 bits
0000010010 1409 240570 600 bits
11 0000010010 1409 244410 9920 bits
N/A 1409 240540 2280 bits
0000010010 1409 240570 680 bits
12 0001001010 1409 273960 400 bits
N/A 1409 273960 1200 bits
0001001001 1409 273660 800 bits
13 0001001001 1409 273960 3280 bits
N/A 1409 273000 4600 bits
0001001001 1409 273630 760 bits
14 - - -
- - -
- - -
15 0000111000 1409 266730 11600 bits
N/A 1409 263340 2320 bits
0000111000 1409 266550 2720 bits
16 0001001001 1409 273960 1800 bits
N/A 1409 273180 600 bits
0001001001 1409 273210 200 bits
18 - - -
- - -
- - -
19 0000110010 1409 261510 1960 bits
N/A 1409 259500 4480 bits
0000110010 1409 259500 280 bits
21 0001001000 1409 272910 600 bits
N/A 1409 272940 6680 bits
0001001000 1409 272910 600 bits
23 0001001010 1409 273960 400 bits
N/A 1409 273960 4400 bits
0001001001 1409 273660 600 bits
25 0000001011 1409 240330 14120 bits
N/A 1409 236340 7360 bits
0000001011 1409 240150 2640 bits
26 0001001010 1409 273960 400 bits
N/A 1409 273960 4360 bits
0001001001 1409 273660 280 bits
27 0000111011 1409 264990 440 bits
N/A 1409 264960 2280 bits
0000111011 1409 264990 440 bits
28 0000110000 1409 261990 10720 bits
N/A 1409 258000 4000 bits
0000110000 1409 261810 2800 bits
29 0000101100 1409 255810 200 bits
N/A 1409 255780 7840 bits
0000101100 1409 255810 200 bits
30 0000101001 1409 257190 11200 bits
N/A 1409 254160 12560 bits
0000101001 1409 256410 3320 bits
31 0001000111 1409 273960 7800 bits
N/A 1409 272100 2760 bits
0001000111 1409 273630 1720 bits
32 0001001001 1409 273960 2440 bits
N/A 1409 273240 2920 bits
0001001001 1409 273390 360 bits
33 0001001010 1409 273960 400 bits
N/A 1409 273960 2560 bits
0001001001 1409 273660 800 bits
34 0000101111 1409 261600 8320 bits
N/A 1409 257760 6520 bits
0000101111 1409 261390 1920 bits
36 0000100100 1409 251160 400 bits
N/A 1409 251160 2720 bits
0000100100 1409 251160 400 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