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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]

1414 113040

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 13
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 7
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 0406 28F15 0415 10F15 0406 1215
Key d933cf80d31ad20251bd482303c3ceba
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0605 10F15 0615 28F15 0605 1215
Key d933cf80d31ad20251bd482303c3ceba
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0906 10F15 0915 12F15 0906 2515
Key d933cf80d31ad20251bd482303c3ceba
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 1106 10F15 1115 28F15 1106 1215
Key d933cf80d31ad20251bd482303c3ceba
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 1906 28F15 1915 27F15 1906 2915
Key d933cf80d31ad20251bd482303c3ceba
SVID 27
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 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 3406 30F15 3415 02F15 3406 2715
Key d933cf80d31ad20251bd482303c3ceba
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3606 30F15 3615 28F15 3606 0215
Key d933cf80d31ad20251bd482303c3ceba

Authenticated Data

02 0000111010 1414 113010 3120 bits
N/A 1414 111780 2880 bits
0000111010 1414 112710 680 bits
03 0000010000 1414 88350 2920 bits
N/A 1414 86820 1760 bits
0000010000 1414 88350 680 bits
04 0000111100 1414 113010 200 bits
N/A 1414 112980 5120 bits
0000111011 1414 112710 600 bits
05 0000001101 1414 84870 40 bits
N/A 1414 83940 4480 bits
0000001101 1414 84720 80 bits
06 0000111100 1414 113010 160 bits
N/A 1414 112980 3000 bits
0000111000 1414 112710 4520 bits
07 0000101000 1414 101100 320 bits
N/A 1414 101040 3240 bits
0000101000 1414 101040 240 bits
08 0000011100 1414 94110 600 bits
N/A 1414 94080 3200 bits
0000011100 1414 94110 600 bits
09 0000111100 1414 113010 200 bits
N/A 1414 112980 1160 bits
0000111011 1414 112710 600 bits
10 0000111011 1414 113010 2200 bits
N/A 1414 112620 13360 bits
0000111011 1414 112650 520 bits
11 0000111100 1414 113010 200 bits
N/A 1414 112980 8640 bits
0000111011 1414 112710 600 bits
12 0000111010 1414 113010 5120 bits
N/A 1414 111840 10960 bits
0000111010 1414 112650 800 bits
13 0000001110 1414 88410 5080 bits
N/A 1414 85740 11720 bits
0000001110 1414 88410 1400 bits
14 - - -
- - -
- - -
15 0000000000 1414 80790 15480 bits
N/A 1414 76980 5520 bits
0000000000 1414 80790 3960 bits
16 0000101111 1414 108060 9320 bits
N/A 1414 105120 11360 bits
0000101111 1414 108030 1800 bits
18 - - -
- - -
- - -
19 0000111100 1414 113010 200 bits
N/A 1414 112980 5040 bits
0000110101 1414 112710 2680 bits
21 0000001001 1414 86220 7600 bits
N/A 1414 82260 12880 bits
0000001001 1414 82530 200 bits
23 0000011100 1414 97650 4040 bits
N/A 1414 93660 3320 bits
0000011100 1414 93690 40 bits
25 0000110010 1414 109950 3120 bits
N/A 1414 107100 8120 bits
0000110010 1414 107190 400 bits
26 0000011111 1414 100290 13600 bits
N/A 1414 95880 3240 bits
0000011111 1414 99570 4240 bits
27 0000111001 1414 113010 2800 bits
N/A 1414 76680 14320 bits
0001111110 1414 76710 600 bits
28 0000111011 1414 113010 2120 bits
N/A 1414 112680 5120 bits
0000111011 1414 112710 600 bits
29 0000110010 1414 109080 3920 bits
N/A 1414 107100 5480 bits
0000110010 1414 107130 360 bits
30 0000111000 1414 113010 6600 bits
N/A 1414 110940 1280 bits
0000111000 1414 112710 2480 bits
31 0000100110 1414 103620 11400 bits
N/A 1414 99720 7160 bits
0000100110 1414 99750 120 bits
32 0000010110 1414 90630 760 bits
N/A 1414 90600 920 bits
0000010110 1414 90600 720 bits
33 0000101100 1414 107250 8800 bits
N/A 1414 103380 8920 bits
0000101100 1414 103470 240 bits
34 0000111100 1414 113010 200 bits
N/A 1414 112980 480 bits
0000111011 1414 112710 600 bits
36 0000111100 1414 113010 200 bits
N/A 1414 112980 2480 bits
0000111011 1414 112710 600 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