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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]

1413 53010

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 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 1005 09F15 1215 1005 1915 1215
Key ab2254083a7ca27dcb4610fc38264617
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1105 09F15 1915 1105 1215 1915
Key ab2254083a7ca27dcb4610fc38264617
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 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 2105 19F15 2315 2105 3315 2315
Key ab2254083a7ca27dcb4610fc38264617
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2705 33F15 0715 2705 3015 0715
Key ab2254083a7ca27dcb4610fc38264617
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2805 09F15 1215 2805 1915 1215
Key ab2254083a7ca27dcb4610fc38264617
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2905 12F15 3015 2905 1915 3015
Key ab2254083a7ca27dcb4610fc38264617
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 0001010110 1413 52710 600 bits
N/A 1413 52680 3680 bits
0001010110 1413 52680 560 bits
03 0001000010 1413 41940 2080 bits
N/A 1413 40440 12000 bits
0001000010 1413 40500 280 bits
04 0000011000 1413 19020 12680 bits
N/A 1413 15180 3920 bits
0000011000 1413 15180 40 bits
05 0000110000 1413 33240 6880 bits
N/A 1413 29460 12000 bits
0000110000 1413 31230 520 bits
06 0000011101 1413 21630 8200 bits
N/A 1413 18120 5680 bits
0000011101 1413 21630 2400 bits
07 0001010100 1413 52980 5480 bits
N/A 1413 51420 3320 bits
0001010100 1413 52650 1320 bits
08 0001001101 1413 50790 17200 bits
N/A 1413 46800 760 bits
0001001101 1413 49530 2800 bits
09 0000100011 1413 25470 15640 bits
N/A 1413 21600 5080 bits
0000100011 1413 25470 1600 bits
10 0001010111 1413 52980 160 bits
N/A 1413 52980 3680 bits
0001010110 1413 52680 560 bits
11 0001010111 1413 52980 160 bits
N/A 1413 52980 920 bits
0001010110 1413 52680 560 bits
12 0001010101 1413 52980 4640 bits
N/A 1413 52020 2480 bits
0001010101 1413 52650 1560 bits
13 0001001000 1413 44070 280 bits
N/A 1413 44040 13480 bits
0001001000 1413 44040 240 bits
14 - - -
- - -
- - -
15 0000111101 1413 37500 320 bits
N/A 1413 37440 12560 bits
0000111101 1413 37470 280 bits
16 0000111010 1413 38670 16640 bits
N/A 1413 35400 880 bits
0000111010 1413 38670 1520 bits
18 - - -
- - -
- - -
19 0001010001 1413 52980 18640 bits
N/A 1413 49500 2120 bits
0001010001 1413 52050 1880 bits
21 0001010111 1413 52980 160 bits
N/A 1413 52980 2040 bits
0001010110 1413 52680 560 bits
23 0000101111 1413 29070 160 bits
N/A 1413 28980 4840 bits
0000101111 1413 29070 200 bits
25 0001001000 1413 48030 11240 bits
N/A 1413 44100 6560 bits
0001001000 1413 46830 920 bits
26 0001010001 1413 49320 80 bits
N/A 1413 49260 3200 bits
0001010000 1413 49260 800 bits
27 0001010111 1413 52980 160 bits
N/A 1413 52980 5520 bits
0001010110 1413 52680 560 bits
28 0001010111 1413 52980 160 bits
N/A 1413 52980 520 bits
0001010110 1413 52680 560 bits
29 0001010111 1413 52980 160 bits
N/A 1413 52980 3480 bits
0001010110 1413 52680 560 bits
30 0001010001 1413 52980 16360 bits
N/A 1413 49560 2440 bits
0001010001 1413 52650 4080 bits
31 0000110010 1413 31200 640 bits
N/A 1413 31080 920 bits
0000110011 1413 31290 40 bits
32 0001001011 1413 49590 15120 bits
N/A 1413 45660 800 bits
0001001011 1413 47490 2160 bits
33 0001010001 1413 52980 10560 bits
N/A 1413 49620 1560 bits
0001010001 1413 51390 1520 bits
34 0000110000 1413 29610 200 bits
N/A 1413 29580 10720 bits
0000110000 1413 29670 240 bits
36 0000011101 1413 22050 8160 bits
N/A 1413 18000 6080 bits
0000011101 1413 21510 160 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