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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]

1420 143910

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 5
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0606 31F15 0915 0606 0415 0915
Key 4d42dc8d915ec1e68af00cce66f4b4f8
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 13
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 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1510 30F15 3415 1510 1315 3415
Key 4d42dc8d915ec1e68af00cce66f4b4f8
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 2112 28F15 1315 2112 2315 1315
Key 4d42dc8d915ec1e68af00cce66f4b4f8
SVID 23
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 28F15 3315 2615 1315 3315
Key 4d42dc8d915ec1e68af00cce66f4b4f8
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2715 32F15 1315 2715 3015 1315
Key 4d42dc8d915ec1e68af00cce66f4b4f8
SVID 28
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

Authenticated Data

02 0001010010 1420 127680 1240 bits
N/A 1420 126240 7280 bits
0001010010 1420 126270 280 bits
03 0000111111 1420 114780 160 bits
N/A 1420 114780 9480 bits
0000111111 1420 114810 200 bits
04 0001101010 1420 143880 8400 bits
N/A 1420 140760 2760 bits
0001101010 1420 143550 2680 bits
05 0000101111 1420 106410 1760 bits
N/A 1420 105360 8920 bits
0000101111 1420 106170 880 bits
06 0001101111 1420 143880 200 bits
N/A 1420 143880 3440 bits
0001101110 1420 142890 40 bits
07 0001011110 1420 133830 520 bits
N/A 1420 133440 1320 bits
0001011110 1420 133470 280 bits
08 0001001110 1420 126750 6960 bits
N/A 1420 123840 5320 bits
0001001110 1420 125850 1600 bits
09 0001101110 1420 143880 880 bits
N/A 1420 142860 1880 bits
0001101110 1420 142890 40 bits
10 0001011000 1420 133140 5360 bits
N/A 1420 129900 2440 bits
0001011000 1420 131310 720 bits
11 0001011010 1420 133200 4880 bits
N/A 1420 131040 1200 bits
0001011010 1420 133170 1520 bits
12 0001011001 1420 130410 200 bits
N/A 1420 130380 3000 bits
0001011001 1420 130410 200 bits
13 0001101110 1420 143880 2960 bits
N/A 1420 142920 2720 bits
0001101110 1420 143550 480 bits
14 - - -
- - -
- - -
15 0001101111 1420 143880 360 bits
N/A 1420 143880 3320 bits
0001101101 1420 142950 800 bits
16 0000111011 1420 112320 80 bits
N/A 1420 112320 960 bits
0000111011 1420 112290 40 bits
18 - - -
- - -
- - -
19 0001101110 1420 143880 1280 bits
N/A 1420 142920 3320 bits
0001101110 1420 142950 120 bits
21 0001101111 1420 143880 440 bits
N/A 1420 143880 1840 bits
0001101111 1420 143580 40 bits
23 0001101111 1420 143880 760 bits
N/A 1420 143520 1880 bits
0001101111 1420 143550 120 bits
25 0001000011 1420 121200 5480 bits
N/A 1420 117000 2480 bits
0001000011 1420 120450 320 bits
26 0001101111 1420 143880 560 bits
N/A 1420 143880 960 bits
0001101111 1420 143580 160 bits
27 0001101111 1420 143880 560 bits
N/A 1420 143880 2320 bits
0001101111 1420 143580 160 bits
28 0001101111 1420 143850 640 bits
N/A 1420 143400 2520 bits
0001101110 1420 143430 480 bits
29 0001101011 1420 141360 360 bits
N/A 1420 141300 2520 bits
0001101011 1420 141330 360 bits
30 0001100001 1420 135630 160 bits
N/A 1420 135600 1120 bits
0001100001 1420 135570 80 bits
31 0001101111 1420 143850 480 bits
N/A 1420 143760 440 bits
0001101111 1420 143580 160 bits
32 0001000110 1420 126150 11000 bits
N/A 1420 119040 6040 bits
0001000110 1420 123870 1280 bits
33 0001010010 1420 127620 2120 bits
N/A 1420 126120 4840 bits
0001010010 1420 126150 120 bits
34 0001101000 1420 143130 7760 bits
N/A 1420 139500 1480 bits
0001101000 1420 142830 1280 bits
36 0001100011 1420 136290 40 bits
N/A 1420 136260 640 bits
0001100011 1420 136320 40 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