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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]

1400 157830

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0215 29F15 1115 0215 0715 1115
Key db3d0e9bfcf6a70bab254a23c8ce0e56
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
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 1015 33F15 1215 1015 1115 1215
Key db3d0e9bfcf6a70bab254a23c8ce0e56
SVID 12
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 21F15 0815 1800 0715 0815
Key db3d0e9bfcf6a70bab254a23c8ce0e56
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 11F15 1215 1915 3315 1215
Key db3d0e9bfcf6a70bab254a23c8ce0e56
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2715 29F15 0715 2715 2115 0715
Key db3d0e9bfcf6a70bab254a23c8ce0e56
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 3015 11F15 0715 3015 0815 0715
Key db3d0e9bfcf6a70bab254a23c8ce0e56
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 0000000111 1400 157800 720 bits
N/A 1400 157800 8840 bits
0000000111 1400 157500 320 bits
03 0001110100 1400 150450 13520 bits
N/A 1400 146940 6240 bits
0001110100 1400 148770 2680 bits
04 0001001100 1400 123390 880 bits
N/A 1400 122820 4520 bits
0001001100 1400 122820 360 bits
05 0001100111 1400 139260 800 bits
N/A 1400 139320 3480 bits
0001101000 1400 139290 40 bits
06 0001010001 1400 127560 3680 bits
N/A 1400 125700 3520 bits
0001010001 1400 127350 1440 bits
07 0000000100 1400 157800 9480 bits
N/A 1400 155880 10760 bits
0000000100 1400 157470 2960 bits
08 0000000001 1400 157800 14880 bits
N/A 1400 154020 8240 bits
0000000001 1400 157470 2320 bits
09 0001010100 1400 131070 9840 bits
N/A 1400 127320 6200 bits
0001010100 1400 128130 160 bits
10 0000000111 1400 157800 720 bits
N/A 1400 157800 680 bits
0000000111 1400 157500 320 bits
11 0001000000 1400 119550 11760 bits
N/A 1400 115620 6320 bits
0001000000 1400 119130 2240 bits
12 0000000100 1400 157800 5000 bits
N/A 1400 155820 800 bits
0000000100 1400 157470 1080 bits
13 0001110111 1400 152430 13280 bits
N/A 1400 148380 7400 bits
0001110111 1400 149550 720 bits
14 - - -
- - -
- - -
15 0001110010 1400 145590 440 bits
N/A 1400 145560 4480 bits
0001110010 1400 145590 440 bits
16 0001110001 1400 148530 12040 bits
N/A 1400 144720 2040 bits
0001110001 1400 147330 280 bits
18 - - -
- - -
- - -
19 0000000111 1400 157800 720 bits
N/A 1400 157800 2280 bits
0000000111 1400 157500 320 bits
21 0001011011 1400 134820 8000 bits
N/A 1400 131520 280 bits
0001011011 1400 134790 2920 bits
23 0001100010 1400 137550 760 bits
N/A 1400 136140 1720 bits
0001100010 1400 136170 680 bits
25 0001111101 1400 154320 5720 bits
N/A 1400 152040 4280 bits
0001111101 1400 152070 280 bits
26 0000000111 1400 157560 360 bits
N/A 1400 157500 10760 bits
0000000111 1400 157500 320 bits
27 0000000111 1400 157800 720 bits
N/A 1400 157800 2400 bits
0000000111 1400 157500 320 bits
28 0001000111 1400 123150 5880 bits
N/A 1400 119280 2960 bits
0001000111 1400 123150 2160 bits
29 0000000001 1400 157800 14600 bits
N/A 1400 154080 6280 bits
0000000001 1400 154470 1080 bits
30 0000000111 1400 157800 720 bits
N/A 1400 157800 4040 bits
0000000111 1400 157500 320 bits
31 0001100001 1400 138810 5000 bits
N/A 1400 98640 2120 bits
0001100001 1400 138690 520 bits
32 - - -
- - -
- - -
33 0000000010 1400 157800 11000 bits
N/A 1400 154440 2760 bits
0000000010 1400 157350 2960 bits
34 0001100101 1400 140730 9320 bits
N/A 1400 137520 2200 bits
0001100101 1400 140730 1760 bits
36 0001010110 1400 128850 520 bits
N/A 1400 128820 6960 bits
0001010110 1400 128850 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 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