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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]

1421 55560

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 5
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 Not transmitting OSNMA
Key Not transmitting OSNMA
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 0509 16F15 0515 03F15 0509 0910
Key 125077295386f513483c8e8c915a451d
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 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1310 32F15 1315 08F15 1310 0315
Key 125077295386f513483c8e8c915a451d
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 09F10 1400 06F15 1400 3115
Key 125077295386f513483c8e8c915a451d
SVID 16
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 2310 26F10 2315 31F15 2310 0910
Key 125077295386f513483c8e8c915a451d
SVID 26
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3305 26F10 3315 31F15 3305 0415
Key 125077295386f513483c8e8c915a451d

Authenticated Data

02 0000101011 1421 27000 720 bits
N/A 1421 27000 5360 bits
0000101011 1421 27000 720 bits
03 0001011010 1421 55530 1440 bits
N/A 1421 55020 480 bits
0001011010 1421 55050 520 bits
04 0001011010 1421 55500 960 bits
N/A 1421 55140 3520 bits
0001011010 1421 55170 680 bits
05 0001011011 1421 55530 320 bits
N/A 1421 55500 880 bits
0001010100 1421 55110 2880 bits
06 0001011000 1421 55530 7640 bits
N/A 1421 53520 3600 bits
0001011000 1421 55230 1280 bits
07 0000101110 1421 32550 17880 bits
N/A 1421 28680 11200 bits
0000101110 1421 32370 6520 bits
08 0000011100 1421 21450 15240 bits
N/A 1421 17640 5560 bits
0000011100 1421 21450 5200 bits
09 0001011011 1421 55530 600 bits
N/A 1421 55320 2760 bits
0001011010 1421 55230 760 bits
10 0000111111 1421 39630 1200 bits
N/A 1421 38760 5200 bits
0000111111 1421 38850 480 bits
11 0000111111 1421 42540 7800 bits
N/A 1421 38820 2320 bits
0000111111 1421 41910 1600 bits
12 0000111010 1421 38610 4040 bits
N/A 1421 35820 4640 bits
0000111010 1421 38610 1520 bits
13 0001011011 1421 55530 360 bits
N/A 1421 55500 2920 bits
0001011010 1421 55230 760 bits
14 - - -
- - -
- - -
15 0001010010 1421 50190 280 bits
N/A 1421 50220 1120 bits
0001010010 1421 50220 320 bits
16 0001011010 1421 55530 1520 bits
N/A 1421 55080 4680 bits
0001011010 1421 55110 600 bits
18 - - -
- - -
- - -
19 0001001111 1421 48630 760 bits
N/A 1421 48660 1680 bits
0001010000 1421 48690 40 bits
21 0001001110 1421 51630 8080 bits
N/A 1421 47760 1800 bits
0001001110 1421 51630 2640 bits
23 0001011011 1421 55530 360 bits
N/A 1421 55500 4640 bits
0001011010 1421 55230 680 bits
25 0000011111 1421 19410 200 bits
N/A 1421 19440 720 bits
0000011111 1421 19440 200 bits
26 0001011011 1421 55530 760 bits
N/A 1421 55200 4120 bits
0001011010 1421 55230 760 bits
27 0001000101 1421 45930 6720 bits
N/A 1421 42120 13480 bits
0001000101 1421 44190 1280 bits
28 0001010101 1421 55170 9880 bits
N/A 1421 51780 1840 bits
0001010101 1421 55170 1480 bits
29 0001000010 1421 40740 600 bits
N/A 1421 40680 12520 bits
0001000010 1421 40710 600 bits
30 0000110111 1421 37830 10320 bits
N/A 1421 33840 6640 bits
0000110111 1421 37170 1440 bits
31 0001011001 1421 55530 7480 bits
N/A 1421 54120 2720 bits
0001011001 1421 54270 200 bits
32 0000010101 1421 17610 13920 bits
N/A 1421 13620 5880 bits
0000010101 1421 17430 3480 bits
33 0001011011 1421 55530 160 bits
N/A 1421 55500 840 bits
0001010111 1421 55230 2320 bits
34 0001001000 1421 46830 3080 bits
N/A 1421 43920 1040 bits
0001001000 1421 46830 360 bits
36 0001000111 1421 44460 2000 bits
N/A 1421 43440 3160 bits
0001000111 1421 43950 440 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