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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]

1401 61500

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 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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0401 06F08 0415 12F08 0401 1015
Key ce7ae14d6a2288c836edd3c9c334a429
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1108 10F15 1115 12F08 1108 1915
Key ce7ae14d6a2288c836edd3c9c334a429
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
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 2108 26F15 2115 33F15 2108 0715
Key ce7ae14d6a2288c836edd3c9c334a429
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2708 07F15 2715 30F15 2708 2615
Key ce7ae14d6a2288c836edd3c9c334a429
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2808 12F08 2815 19F15 2808 1015
Key ce7ae14d6a2288c836edd3c9c334a429
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2908 30F15 2915 19F15 2908 0715
Key ce7ae14d6a2288c836edd3c9c334a429
SVID 30
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 Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001100011 1401 60510 480 bits
N/A 1401 60420 2680 bits
0001100011 1401 60510 520 bits
03 0001001100 1401 48570 2200 bits
N/A 1401 46260 320 bits
0001001100 1401 48450 80 bits
04 0001011111 1401 61470 2280 bits
N/A 1401 20940 680 bits
0001011111 1401 61170 440 bits
05 0000111111 1401 40440 2960 bits
N/A 1401 38220 5040 bits
0000111111 1401 38910 200 bits
06 0000101100 1401 27480 160 bits
N/A 1401 25680 560 bits
0000101001 1401 25680 240 bits
07 0001100011 1401 61470 3320 bits
N/A 1401 60120 4480 bits
0001100011 1401 61170 800 bits
08 0001010110 1401 56310 4760 bits
N/A 1401 52320 1400 bits
0001010110 1401 56310 2160 bits
09 0000101111 1401 32550 10440 bits
N/A 1401 29100 1160 bits
0000101111 1401 32550 400 bits
10 0001100011 1401 61470 4320 bits
N/A 1401 60060 2760 bits
0001100011 1401 60090 40 bits
11 0001100101 1401 61470 280 bits
N/A 1401 61440 160 bits
0001011111 1401 60390 1320 bits
12 0001100101 1401 61470 680 bits
N/A 1401 61260 3160 bits
0001100100 1401 61170 680 bits
13 0001010111 1401 53400 720 bits
N/A 1401 53400 1960 bits
0001010111 1401 53400 720 bits
14 - - -
- - -
- - -
15 0001001001 1401 44820 480 bits
N/A 1401 44760 13000 bits
0001001001 1401 44790 440 bits
16 0001001110 1401 51390 8240 bits
N/A 1401 46680 160 bits
0001001110 1401 51270 1480 bits
18 - - -
- - -
- - -
19 0001011111 1401 61470 14680 bits
N/A 1401 57900 2440 bits
0001011111 1401 61170 3600 bits
21 0001100101 1401 61470 280 bits
N/A 1401 61440 240 bits
0001100100 1401 61170 120 bits
23 0001001010 1401 45570 680 bits
N/A 1401 45540 320 bits
0001001010 1401 45570 680 bits
25 0001001111 1401 52500 8240 bits
N/A 1401 14520 4560 bits
0001001111 1401 52230 1000 bits
26 0001011111 1401 61470 5080 bits
N/A 1401 57960 5920 bits
0001011111 1401 61170 520 bits
27 0001100101 1401 61470 280 bits
N/A 1401 61440 3040 bits
0001100100 1401 61170 680 bits
28 0001100101 1401 61470 280 bits
N/A 1401 61440 3600 bits
0001100100 1401 61170 680 bits
29 0001100101 1401 61470 280 bits
N/A 1401 61440 4680 bits
0001100100 1401 61170 680 bits
30 0001011111 1401 61470 10720 bits
N/A 1401 57960 2280 bits
0001011111 1401 60150 3240 bits
31 0001001110 1401 50610 5400 bits
N/A 1401 47400 400 bits
0001001110 1401 48390 560 bits
32 - - -
- - -
- - -
33 0001100100 1401 61470 1520 bits
N/A 1401 61020 3560 bits
0001100100 1401 61050 520 bits
34 0000110101 1401 36690 17920 bits
N/A 1401 32700 7560 bits
0000110101 1401 36690 7560 bits
36 0000100101 1401 27210 5560 bits
N/A 1401 23220 3760 bits
0000100101 1401 27210 1920 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