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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]

1372 508260

Authenticated NMA Status
NMAS OPERATIONAL CID 0 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 20 21 23 25 26 27 29 30 31 33 34 36
Satellites Transmitting OSNMA 5
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 20 21 23 25 26 27 29 30 31 33 34 36
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 - - - - - -
Key Tesla Key not fully received
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1015 12F15 1015 11F15 1015 3115
Key 1d825d46c31d36e5cfb1a3bfec4eeebf
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
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 25F15 1615 12F15 1615 0515
Key 1d825d46c31d36e5cfb1a3bfec4eeebf
SVID 23
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 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2615 07F15 2615 29F15 2615 3115
Key 1d825d46c31d36e5cfb1a3bfec4eeebf
SVID 29
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3315 31F15 3315 12F15 3315 0715
Key 1d825d46c31d36e5cfb1a3bfec4eeebf

Authenticated Data

02 - - -
- - -
- - -
03 0001001010 1372 503010 1560 bits
- - -
- - -
04 0000111111 1372 495780 160 bits
N/A 1372 495780 2680 bits
0000111111 1372 495780 160 bits
05 0001000111 1372 500970 680 bits
N/A 1372 500940 3760 bits
0001000111 1372 500970 680 bits
06 0001000001 1372 497310 600 bits
N/A 1372 497280 3120 bits
0001000001 1372 497280 560 bits
07 0001010010 1372 508230 2800 bits
N/A 1372 507420 2000 bits
0001010010 1372 507930 1080 bits
08 0001010011 1372 507720 80 bits
N/A 1372 507720 3400 bits
0001010011 1372 507690 40 bits
09 0000111111 1372 500970 12240 bits
N/A 1372 495900 2360 bits
0000111111 1372 497250 2320 bits
10 0001010011 1372 508230 760 bits
N/A 1372 508200 1400 bits
0001010011 1372 507930 360 bits
11 - - -
- - -
- - -
12 0001010000 1372 508230 7960 bits
N/A 1372 505800 2320 bits
0001010000 1372 507930 1240 bits
13 0001001010 1372 506190 12680 bits
N/A 1372 502320 7440 bits
0001001010 1372 506190 4000 bits
14 - - -
- - -
- - -
15 0000111110 1372 495210 200 bits
N/A 1372 495180 2960 bits
0000111110 1372 495210 200 bits
16 0001010011 1372 508230 760 bits
N/A 1372 508200 2720 bits
0001010011 1372 507930 360 bits
18 - - -
- - -
- - -
19 0000110010 1372 492330 10920 bits
- - -
0000110010 1372 490350 960 bits
20 - - -
- - -
- - -
21 0001001001 1372 502110 600 bits
N/A 1372 502080 5840 bits
0001001001 1372 502110 600 bits
23 0001010000 1372 508050 4720 bits
N/A 1372 506160 4880 bits
0001010000 1372 506910 600 bits
25 0001010001 1372 508230 4640 bits
- - -
0001010001 1372 507930 1160 bits
26 0001010011 1372 508230 760 bits
N/A 1372 508200 7120 bits
0001010011 1372 507930 360 bits
27 0000110110 1372 493620 14120 bits
N/A 1372 490440 280 bits
0000110110 1372 492210 2320 bits
29 0001010011 1372 508230 760 bits
N/A 1372 507960 120 bits
0001010011 1372 507930 240 bits
30 - - -
- - -
- - -
31 0001010000 1372 508230 9320 bits
N/A 1372 505920 4600 bits
0001010000 1372 507930 2040 bits
33 0001010011 1372 508230 760 bits
N/A 1372 508200 5120 bits
0001010011 1372 507930 360 bits
34 - - -
- - -
- - -
36 - - -
- - -
- - -

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.

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