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]

1420 307110

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 3
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 0504 09F15 1615 0504 2515 1615
Key c77d0ed7e14ed82e12b6063d8eb66626
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 Not transmitting OSNMA
Key Not transmitting OSNMA
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 1800 25F15 0915 1800 0615 0915
Key c77d0ed7e14ed82e12b6063d8eb66626
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 26
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3215 26F15 0315 3215 1515 0315
Key c77d0ed7e14ed82e12b6063d8eb66626

Authenticated Data

02 0001010000 1420 279060 4240 bits
N/A 1420 277320 2040 bits
0001010000 1420 279030 1120 bits
03 0000000010 1420 307080 640 bits
N/A 1420 306780 560 bits
0000000010 1420 306780 160 bits
04 0001111101 1420 307050 2560 bits
N/A 1420 304380 9680 bits
0001111101 1420 304410 200 bits
05 0000000010 1420 307080 120 bits
N/A 1420 307080 80 bits
0000000000 1420 305670 160 bits
06 0001111101 1420 307080 5160 bits
N/A 1420 304740 5720 bits
0001111101 1420 306750 1840 bits
07 0001001101 1420 275940 640 bits
N/A 1420 275880 4280 bits
0001001101 1420 275910 600 bits
08 0000111110 1420 268350 2440 bits
N/A 1420 266940 3240 bits
0000111110 1420 267510 960 bits
09 0000000010 1420 307080 640 bits
N/A 1420 306900 800 bits
0000000010 1420 306780 160 bits
10 0001100100 1420 292950 5800 bits
N/A 1420 289500 8240 bits
0001100100 1420 292950 1360 bits
11 0001101101 1420 299070 7480 bits
N/A 1420 295080 5680 bits
0001101101 1420 299070 2640 bits
12 0001100100 1420 289530 360 bits
N/A 1420 289260 7560 bits
0001100100 1420 289530 200 bits
13 0000000001 1420 307080 1480 bits
N/A 1420 306300 560 bits
0000000001 1420 306330 360 bits
14 - - -
- - -
- - -
15 0001111101 1420 307080 4360 bits
N/A 1420 304200 1480 bits
0001111101 1420 306750 1120 bits
16 0000000000 1420 307080 3280 bits
N/A 1420 305640 120 bits
0000000000 1420 306030 520 bits
18 - - -
- - -
- - -
19 0001101101 1420 294780 160 bits
N/A 1420 294720 7600 bits
0001101101 1420 294750 120 bits
21 0001101100 1420 297870 2160 bits
N/A 1420 294060 2960 bits
0001101100 1420 297870 800 bits
23 0000000000 1420 306060 600 bits
N/A 1420 306000 240 bits
0000000000 1420 306030 560 bits
25 0000000001 1420 307080 680 bits
N/A 1420 306000 360 bits
0000000000 1420 306030 760 bits
26 0001111110 1420 306300 1360 bits
N/A 1420 304860 5920 bits
0001111110 1420 306030 360 bits
27 0001100100 1420 289800 440 bits
N/A 1420 289740 2800 bits
0001100100 1420 289770 400 bits
28 0001110001 1420 300390 5120 bits
N/A 1420 297180 5200 bits
0001110001 1420 300390 1640 bits
29 0001011100 1420 287250 5520 bits
N/A 1420 284640 5480 bits
0001011100 1420 285810 1400 bits
30 0001011001 1420 283170 160 bits
N/A 1420 283140 920 bits
0001011001 1420 283110 40 bits
31 0001111100 1420 306030 3840 bits
N/A 1420 304140 7600 bits
0001111100 1420 305430 1360 bits
32 0000000010 1420 307080 560 bits
N/A 1420 307080 600 bits
0000000010 1420 306780 160 bits
33 0001010110 1420 283230 720 bits
N/A 1420 280980 4560 bits
0001010110 1420 281010 200 bits
34 0001111000 1420 302910 2560 bits
N/A 1420 301740 4880 bits
0001111000 1420 301770 680 bits
36 0001110100 1420 302730 4200 bits
N/A 1420 298860 5040 bits
0001110100 1420 302730 520 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