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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 282390

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 15
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 2
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
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 1011 11F15 0415 1011 2815 0415
Key af4f591d4dcbb876d8f122f9f98e4619
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3604 34F15 0211 3604 3011 0211
Key af4f591d4dcbb876d8f122f9f98e4619

Authenticated Data

02 0001010000 1420 279060 4240 bits
N/A 1420 277320 2040 bits
0001010000 1420 279030 1120 bits
03 0000110000 1420 260550 4560 bits
N/A 1420 258300 5280 bits
0000110000 1420 260250 1200 bits
04 0001010110 1420 282360 3560 bits
N/A 1420 281100 1320 bits
0001010110 1420 282030 880 bits
05 0000101000 1420 253470 160 bits
N/A 1420 253440 2520 bits
0000101000 1420 253440 120 bits
06 0001010111 1420 282270 1080 bits
N/A 1420 281760 1440 bits
0001010111 1420 281790 440 bits
07 0001001101 1420 275940 640 bits
N/A 1420 275880 4280 bits
0001001101 1420 275910 600 bits
08 0000111110 1420 268350 2440 bits
N/A 1420 266940 3240 bits
0000111110 1420 267510 960 bits
09 0001010011 1420 281790 1200 bits
N/A 1420 247560 1360 bits
0001010011 1420 281790 520 bits
10 0001011000 1420 282360 400 bits
N/A 1420 282360 6120 bits
0001010111 1420 282060 520 bits
11 0001010011 1420 282360 5560 bits
N/A 1420 279000 2320 bits
0001010010 1420 279030 760 bits
12 0001011000 1420 282360 360 bits
N/A 1420 282240 5600 bits
0001010111 1420 282060 800 bits
13 0000111100 1420 266880 2320 bits
N/A 1420 265440 1400 bits
0000111100 1420 266730 400 bits
14 - - -
- - -
- - -
15 0000101001 1420 257190 9880 bits
N/A 1420 254340 6080 bits
0000101001 1420 254790 1480 bits
16 0001001000 1420 272970 480 bits
N/A 1420 272940 2280 bits
0001001000 1420 272970 480 bits
18 - - -
- - -
- - -
19 0001010111 1420 281970 560 bits
N/A 1420 281760 4920 bits
0001010111 1420 281790 440 bits
21 0000110010 1420 259830 760 bits
N/A 1420 259800 8960 bits
0000110010 1420 259830 760 bits
23 0000111100 1420 265590 440 bits
N/A 1420 265560 1320 bits
0000111100 1420 265590 440 bits
25 0001000110 1420 275100 8640 bits
N/A 1420 271260 920 bits
0001000110 1420 275070 1400 bits
26 0001001011 1420 274830 760 bits
N/A 1420 274800 5840 bits
0001001011 1420 274800 720 bits
27 0001010011 1420 282330 2760 bits
N/A 1420 279540 720 bits
0001010011 1420 281070 1600 bits
28 0001010011 1420 282360 9560 bits
N/A 1420 279000 3480 bits
0001010011 1420 281790 2280 bits
29 0001010101 1420 282330 1280 bits
N/A 1420 280260 5200 bits
0001010101 1420 280290 40 bits
30 0001011000 1420 282360 400 bits
N/A 1420 282300 880 bits
0001010111 1420 282060 120 bits
31 0001000011 1420 269670 280 bits
N/A 1420 269640 3920 bits
0001000011 1420 269670 240 bits
32 0000110011 1420 264030 6160 bits
N/A 1420 260160 200 bits
0000110011 1420 264030 2160 bits
33 0001010110 1420 281790 280 bits
N/A 1420 280980 4560 bits
0001010110 1420 281010 200 bits
34 0000010110 1420 246390 3000 bits
N/A 1420 242460 3800 bits
0000010110 1420 244410 520 bits
36 0001011000 1420 282360 120 bits
N/A 1420 282360 80 bits
0001010011 1420 281970 360 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