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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]

1392 499740

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 3
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 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 04F15 0615 36F15 0615 1115
Key 23acdc7a10e0033210cdd1af698b308d
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0909 36F15 0915 11F15 0909 0415
Key 23acdc7a10e0033210cdd1af698b308d
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 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 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 2315 19F15 2315 04F15 2315 2115
Key 23acdc7a10e0033210cdd1af698b308d
SVID 28
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 Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000110111 1392 493140 1480 bits
N/A 1392 491340 2440 bits
0000110111 1392 491370 680 bits
03 0000010001 1392 469110 2040 bits
N/A 1392 426780 9320 bits
0000001110 1392 466950 320 bits
04 0001000101 1392 499710 680 bits
N/A 1392 499620 8280 bits
0001000101 1392 499410 200 bits
05 0001000101 1392 499710 600 bits
N/A 1392 499680 2720 bits
0001000101 1392 499410 200 bits
06 0001000101 1392 499710 760 bits
N/A 1392 499560 4440 bits
0001000101 1392 499410 200 bits
07 0000101001 1392 482970 680 bits
N/A 1392 483000 3800 bits
0000101001 1392 483000 720 bits
08 0000011011 1392 474450 480 bits
N/A 1392 474360 3360 bits
0000011011 1392 474360 360 bits
09 0001000101 1392 499710 320 bits
N/A 1392 499680 3480 bits
0001000100 1392 499410 1320 bits
10 0001000000 1392 499650 6480 bits
N/A 1392 496560 8400 bits
0001000000 1392 498870 1720 bits
11 0001000100 1392 499710 3120 bits
N/A 1392 498840 3920 bits
0001000100 1392 498870 280 bits
12 0001000011 1392 498090 40 bits
N/A 1392 498060 6680 bits
0001000011 1392 498090 40 bits
13 0000010010 1392 472920 6760 bits
N/A 1392 468960 11600 bits
0000010010 1392 472890 1840 bits
14 - - -
- - -
- - -
15 0000000010 1392 463230 9560 bits
N/A 1392 459540 7880 bits
0000000010 1392 463230 1160 bits
16 0000110001 1392 487380 160 bits
N/A 1392 487380 4800 bits
0000110001 1392 487380 160 bits
18 - - -
- - -
- - -
19 0000111111 1392 499710 4080 bits
N/A 1392 495780 5840 bits
0000111111 1392 499410 240 bits
21 0001000000 1392 499680 2640 bits
N/A 1392 468000 13720 bits
0001000000 1392 499410 120 bits
23 0001000101 1392 499710 400 bits
N/A 1392 499680 200 bits
0000011101 1392 475680 440 bits
25 0000110111 1392 490950 120 bits
N/A 1392 490920 4000 bits
0000110111 1392 490950 120 bits
26 0000011111 1392 480630 18560 bits
N/A 1392 476640 13920 bits
0000011111 1392 480630 7440 bits
27 0000111010 1392 496770 5440 bits
N/A 1392 458760 6440 bits
0000111010 1392 496770 1440 bits
28 - - -
- - -
- - -
29 0000110010 1392 491520 2680 bits
N/A 1392 488280 4880 bits
0000110010 1392 488310 600 bits
30 0000111111 1392 496650 1800 bits
N/A 1392 495960 1360 bits
0000111111 1392 496650 800 bits
31 0000100011 1392 482910 9320 bits
N/A 1392 478980 640 bits
0000100011 1392 482730 760 bits
32 - - -
- - -
- - -
33 0000110011 1392 489000 520 bits
N/A 1392 488940 5520 bits
0000110011 1392 488970 480 bits
34 0001000011 1392 499710 1960 bits
N/A 1392 498480 1760 bits
0001000011 1392 498510 600 bits
36 0001000101 1392 499710 1040 bits
N/A 1392 499500 4280 bits
0001000101 1392 499410 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