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]

1406 533460

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 5
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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0215 36F15 0215 11F15 0215 3015
Key 0f9c9ddf7e2b9cbc8a3337f15e4248f3
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1015 12F15 1015 11F15 1015 1915
Key 0f9c9ddf7e2b9cbc8a3337f15e4248f3
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
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 1615 09F15 1615 06F15 1615 2515
Key 0f9c9ddf7e2b9cbc8a3337f15e4248f3
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2815 19F15 2815 12F15 2815 3315
Key 0f9c9ddf7e2b9cbc8a3337f15e4248f3
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3415 32F15 3415 36F15 3415 0815
Key 0f9c9ddf7e2b9cbc8a3337f15e4248f3
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 0001111101 1406 533430 800 bits
N/A 1406 533400 3520 bits
0001111101 1406 533130 280 bits
03 0001110001 1406 528210 5040 bits
N/A 1406 525900 4480 bits
0001110001 1406 525930 360 bits
04 0001011000 1406 514530 7840 bits
N/A 1406 510720 8280 bits
0001011000 1406 510750 120 bits
05 0001101100 1406 522810 200 bits
N/A 1406 522780 1200 bits
0001101100 1406 522780 160 bits
06 0001100000 1406 515580 160 bits
N/A 1406 515520 10040 bits
0001100000 1406 515550 120 bits
07 0001110100 1406 531510 6400 bits
N/A 1406 527820 1240 bits
0001110100 1406 527850 520 bits
08 0001110100 1406 529650 3960 bits
N/A 1406 527940 2120 bits
0001110100 1406 529650 1800 bits
09 0001100100 1406 518310 600 bits
N/A 1406 518280 10040 bits
0001100100 1406 518310 600 bits
10 0001111101 1406 533430 760 bits
N/A 1406 533400 7320 bits
0001111101 1406 533130 360 bits
11 0001110111 1406 533430 15960 bits
N/A 1406 529500 3360 bits
0001110111 1406 532470 3480 bits
12 0001110111 1406 533430 13240 bits
N/A 1406 529560 2240 bits
0001110111 1406 533130 4200 bits
13 0001011100 1406 513420 480 bits
N/A 1406 513420 2880 bits
0001011100 1406 513420 480 bits
14 - - -
- - -
- - -
15 0001001111 1406 508770 10520 bits
N/A 1406 505260 2440 bits
0001001111 1406 507990 1840 bits
16 0001111101 1406 533430 760 bits
N/A 1406 533400 5240 bits
0001111101 1406 533130 360 bits
18 - - -
- - -
- - -
19 0001111010 1406 533430 2400 bits
N/A 1406 504900 10240 bits
0001111010 1406 533130 280 bits
21 0001010010 1406 507360 400 bits
N/A 1406 507300 10840 bits
0001010010 1406 507330 360 bits
23 0001100001 1406 522180 18240 bits
N/A 1406 516180 8200 bits
0001100001 1406 518310 2680 bits
25 0001111101 1406 533430 800 bits
N/A 1406 533280 4680 bits
0001111101 1406 533130 360 bits
26 0001101000 1406 520620 480 bits
N/A 1406 520560 1000 bits
0001101000 1406 520650 480 bits
27 0001000001 1406 499980 5720 bits
N/A 1406 496920 6840 bits
0001000001 1406 499830 1040 bits
28 0001111101 1406 533430 280 bits
N/A 1406 533400 120 bits
0001010101 1406 510750 2040 bits
29 0001111101 1406 533430 720 bits
N/A 1406 533340 2720 bits
0001111101 1406 533130 360 bits
30 0001111101 1406 533400 680 bits
N/A 1406 533220 360 bits
0001111101 1406 533130 360 bits
31 0001110010 1406 526830 760 bits
N/A 1406 526800 2560 bits
0001110010 1406 526800 720 bits
32 0001110001 1406 529650 9240 bits
N/A 1406 525840 4080 bits
0001110001 1406 527970 1200 bits
33 0001110001 1406 529590 9040 bits
N/A 1406 526080 2360 bits
0001110001 1406 529590 2040 bits
34 0001001001 1406 504960 5760 bits
N/A 1406 501660 2480 bits
0001001001 1406 503910 480 bits
36 0001110111 1406 533430 9080 bits
N/A 1406 529500 2080 bits
0001110111 1406 533130 1000 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 3 ADKD types are: ADKD0, 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
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 (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