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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 134520

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 4
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 18
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 1902 28F15 1915 29F15 1902 2715
Key 694e4e3a644fc6c842b3fc0ade61f5bb
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2102 29F15 2115 28F15 2102 2715
Key 694e4e3a644fc6c842b3fc0ade61f5bb
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2302 31F15 2315 33F15 2302 1215
Key 694e4e3a644fc6c842b3fc0ade61f5bb
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 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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3402 30F15 3415 02F02 3402 3615
Key 694e4e3a644fc6c842b3fc0ade61f5bb
SVID 36
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 0001011101 1420 134490 2520 bits
N/A 1420 133140 1120 bits
0001011101 1420 133230 720 bits
05 0000101111 1420 106410 1760 bits
N/A 1420 105360 8920 bits
0000101111 1420 106170 880 bits
06 0000011010 1420 93870 2840 bits
N/A 1420 92460 2800 bits
0000011010 1420 92490 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 0000100001 1420 98430 2520 bits
N/A 1420 96900 1640 bits
0000100001 1420 96930 360 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 0001000100 1420 120930 7040 bits
N/A 1420 117600 13160 bits
0001000100 1420 120930 1120 bits
14 - - -
- - -
- - -
15 0000111010 1420 111780 160 bits
N/A 1420 111720 6480 bits
0000111010 1420 111750 120 bits
16 0000111011 1420 112320 80 bits
N/A 1420 112320 960 bits
0000111011 1420 112290 40 bits
18 - - -
- - -
- - -
19 0001100000 1420 134490 40 bits
N/A 1420 134460 760 bits
0001011111 1420 134190 440 bits
21 0001100000 1420 134490 40 bits
N/A 1420 134460 680 bits
0001011111 1420 134190 440 bits
23 0001100000 1420 134490 40 bits
N/A 1420 134460 760 bits
0001011111 1420 134190 440 bits
25 0001000011 1420 121200 5480 bits
N/A 1420 117000 2480 bits
0001000011 1420 120450 320 bits
26 0001001101 1420 123600 720 bits
N/A 1420 123600 10120 bits
0001001101 1420 123570 680 bits
27 0001011010 1420 134490 12200 bits
N/A 1420 130980 9840 bits
0001011010 1420 133050 2440 bits
28 0001011110 1420 134490 2680 bits
N/A 1420 133200 1000 bits
0001011110 1420 134190 600 bits
29 0001011110 1420 134490 3320 bits
N/A 1420 133260 1200 bits
0001011110 1420 134190 600 bits
30 0001011101 1420 134490 2440 bits
N/A 1420 133020 1040 bits
0001011101 1420 134190 1320 bits
31 0000110000 1420 106170 520 bits
N/A 1420 106140 1040 bits
0000110000 1420 106170 600 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 0001100000 1420 134490 40 bits
N/A 1420 134460 840 bits
0001011111 1420 134190 440 bits
36 0001011010 1420 134460 5840 bits
N/A 1420 130980 2080 bits
0001011010 1420 132150 800 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