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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]

1418 44250

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 7
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 0312 16F15 3215 0312 1315 3215
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0513 34F15 1615 0513 1315 1615
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0613 10F15 1615 0613 2815 1615
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0913 10F15 1615 0913 2815 1615
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 13
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 1513 16F15 3215 1513 3415 3215
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2513 11F15 1615 2513 0215 1615
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3113 28F15 2315 3113 1615 2315
Key 8912a407bcb9a911c4c0643c8db42f6f
SVID 32
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

Authenticated Data

02 0000100001 1418 20730 360 bits
N/A 1418 20700 3720 bits
0000100001 1418 20700 320 bits
03 0001001000 1418 44220 440 bits
N/A 1418 44220 2640 bits
0001001000 1418 43920 40 bits
04 0001000000 1418 42630 5720 bits
N/A 1418 39480 7920 bits
0001000000 1418 42630 920 bits
05 0001001000 1418 44220 480 bits
N/A 1418 44220 10680 bits
0001001000 1418 43920 80 bits
06 0001001000 1418 44220 480 bits
N/A 1418 44220 11400 bits
0001001000 1418 43920 80 bits
07 0000010110 1418 14310 600 bits
N/A 1418 14280 4840 bits
0000010110 1418 14310 600 bits
08 0000000110 1418 8760 7320 bits
N/A 1418 4740 1760 bits
0000000110 1418 5370 1000 bits
09 0001001000 1418 44220 480 bits
N/A 1418 44220 8720 bits
0001001000 1418 43920 80 bits
10 0000110010 1418 34230 6000 bits
N/A 1418 30900 10280 bits
0000110010 1418 32910 2560 bits
11 0000111010 1418 35670 280 bits
N/A 1418 35640 7440 bits
0000111010 1418 35640 240 bits
12 0000101111 1418 29130 360 bits
N/A 1418 29100 8760 bits
0000101111 1418 29160 400 bits
13 0001000111 1418 44220 2360 bits
N/A 1418 43680 1080 bits
0001000111 1418 43710 600 bits
14 - - -
- - -
- - -
15 0001001000 1418 44220 440 bits
N/A 1418 44220 2960 bits
0001001000 1418 43920 80 bits
16 0001000101 1418 44220 11360 bits
N/A 1418 42120 5160 bits
0001000101 1418 43890 3040 bits
18 - - -
- - -
- - -
19 0000110011 1418 35370 8600 bits
N/A 1418 31380 10960 bits
0000110011 1418 31410 200 bits
21 0000110110 1418 37410 7720 bits
N/A 1418 33480 3680 bits
0000110110 1418 37410 1640 bits
23 0001000010 1418 44220 7840 bits
N/A 1418 40380 4600 bits
0001000010 1418 43890 1560 bits
25 0001001000 1418 44220 480 bits
N/A 1418 44220 5600 bits
0001001000 1418 43920 80 bits
26 0000001111 1418 13710 10560 bits
N/A 1418 10020 5480 bits
0000001111 1418 10890 1640 bits
27 0000101100 1418 29670 3440 bits
N/A 1418 27480 1400 bits
0000101100 1418 27510 600 bits
28 0000111101 1418 38910 2680 bits
N/A 1418 37260 6800 bits
0000111101 1418 38910 200 bits
29 0000100100 1418 26550 6000 bits
N/A 1418 22500 8320 bits
0000100100 1418 25650 1520 bits
30 0000100010 1418 23970 5440 bits
N/A 1418 21360 360 bits
0000100010 1418 23970 2040 bits
31 0001001000 1418 44220 480 bits
N/A 1418 44220 7040 bits
0001001000 1418 43920 80 bits
32 0001000011 1418 44220 3720 bits
N/A 1418 1980 320 bits
0001000011 1418 43890 280 bits
33 0000100010 1418 21270 120 bits
N/A 1418 21240 6320 bits
0000100010 1418 21270 160 bits
34 0001000101 1418 44220 4960 bits
N/A 1418 42540 8040 bits
0001000101 1418 42570 680 bits
36 0000111111 1418 42510 10600 bits
N/A 1418 38520 7600 bits
0000111111 1418 42150 560 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