Input Options:

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]

1395 413940

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 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 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0315 05F15 0315 02F15 0315 3415
Key cdd084364cb4822fda13993b6de683e7
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0415 23F15 0415 28F15 0415 3115
Key cdd084364cb4822fda13993b6de683e7
SVID 5
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 0615 09F15 0615 23F15 0615 3115
Key cdd084364cb4822fda13993b6de683e7
SVID 9
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
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 23
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
SVID 34
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 3615 05F15 3615 11F15 3615 3415
Key cdd084364cb4822fda13993b6de683e7

Authenticated Data

02 0000100010 1395 402540 640 bits
N/A 1395 402540 4040 bits
0000100010 1395 402540 640 bits
03 0000110101 1395 413910 600 bits
N/A 1395 413880 360 bits
0000110101 1395 413610 200 bits
04 0000110101 1395 413910 600 bits
N/A 1395 413880 6600 bits
0000110101 1395 413610 200 bits
05 0000110010 1395 413910 3960 bits
N/A 1395 412140 2120 bits
0000110010 1395 413610 1760 bits
06 0000110101 1395 413910 600 bits
N/A 1395 413880 6200 bits
0000110101 1395 413610 200 bits
07 0000010000 1395 391410 200 bits
N/A 1395 391380 360 bits
0000010000 1395 391410 200 bits
08 0000000001 1395 386010 7480 bits
N/A 1395 382380 1960 bits
0000000001 1395 382410 200 bits
09 0000110001 1395 413910 8960 bits
N/A 1395 411060 4040 bits
0000110001 1395 413610 2240 bits
10 0000101110 1395 412890 5760 bits
N/A 1395 409680 8160 bits
0000101110 1395 411570 2240 bits
11 0000110001 1395 413910 4160 bits
N/A 1395 411540 4280 bits
0000110001 1395 411570 680 bits
12 0000101001 1395 406860 800 bits
N/A 1395 406800 5120 bits
0000101001 1395 406830 760 bits
13 0001111001 1395 378510 240 bits
N/A 1395 378480 8360 bits
0001111001 1395 378510 240 bits
14 - - -
- - -
- - -
15 0000110011 1395 413370 1320 bits
N/A 1395 412200 240 bits
0000110011 1395 413190 560 bits
16 0000010100 1395 397290 7680 bits
N/A 1395 394140 2080 bits
0000010100 1395 396150 880 bits
18 - - -
- - -
- - -
19 0000101010 1395 407730 1600 bits
N/A 1395 406860 5320 bits
0000101010 1395 407730 480 bits
21 0000110100 1395 413400 680 bits
N/A 1395 413340 1000 bits
0000110100 1395 413370 680 bits
23 0000110011 1395 413910 5960 bits
N/A 1395 412320 2120 bits
0000110011 1395 413610 960 bits
25 0000011011 1395 402210 6960 bits
N/A 1395 398220 3000 bits
0000011011 1395 398250 520 bits
26 0000001010 1395 389250 6520 bits
N/A 1395 387900 7760 bits
0000001010 1395 389250 2320 bits
27 0000101010 1395 408450 2400 bits
N/A 1395 365160 6560 bits
0000101010 1395 407430 360 bits
28 0000110000 1395 413910 9120 bits
N/A 1395 410520 6200 bits
0000110000 1395 412890 2200 bits
29 0000011001 1395 400170 1520 bits
N/A 1395 397020 1600 bits
0000011001 1395 397050 520 bits
30 0000100110 1395 404790 400 bits
N/A 1395 404700 280 bits
0000100110 1395 404790 440 bits
31 0000110100 1395 413880 1400 bits
N/A 1395 412860 1280 bits
0000110100 1395 412890 40 bits
32 - - -
- - -
- - -
33 0000011001 1395 397170 680 bits
N/A 1395 397140 1680 bits
0000011001 1395 397170 680 bits
34 0000110011 1395 413880 1840 bits
N/A 1395 412260 4440 bits
0000110011 1395 412290 40 bits
36 0000110101 1395 413910 600 bits
N/A 1395 413880 5000 bits
0000110101 1395 413610 200 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 3 ADKD types are: ADKD0, 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
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 (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