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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]

1385 280260

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 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 0515 06F15 0515 16F15 0515 0415
Key 6b0c7391b4c2967f15a0009b91ed5870
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 0915 06F15 0915 04F15 0915 1615
Key 6b0c7391b4c2967f15a0009b91ed5870
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 1515 13F15 1515 06F15 1515 0415
Key 6b0c7391b4c2967f15a0009b91ed5870
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 04F15 1915 12F15 1915 0615
Key 6b0c7391b4c2967f15a0009b91ed5870
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 13F15 2115 04F15 2115 0615
Key 6b0c7391b4c2967f15a0009b91ed5870
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2315 04F15 2315 06F15 2315 1315
Key 6b0c7391b4c2967f15a0009b91ed5870
SVID 28
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 3115 04F15 3115 06F15 3115 1615
Key 6b0c7391b4c2967f15a0009b91ed5870

Authenticated Data

02 0000110011 1385 260100 200 bits
N/A 1385 260040 120 bits
0000110011 1385 260010 200 bits
03 0000011011 1385 248250 6800 bits
N/A 1385 245700 9240 bits
0000011011 1385 248070 680 bits
04 0001001111 1385 280230 20000 bits
N/A 1385 276780 5920 bits
0001001111 1385 279930 5240 bits
05 0001010100 1385 280230 560 bits
N/A 1385 280200 320 bits
0001010100 1385 279930 200 bits
06 0001010011 1385 280230 5000 bits
N/A 1385 279540 4880 bits
0001010011 1385 279930 1080 bits
07 0000111010 1385 264360 400 bits
N/A 1385 264300 2960 bits
0000111010 1385 264300 320 bits
08 0000100100 1385 255150 16440 bits
N/A 1385 251220 9000 bits
0000100100 1385 255150 5920 bits
09 0001010100 1385 280230 760 bits
N/A 1385 280200 3840 bits
0001010100 1385 279930 360 bits
10 0001001000 1385 272610 200 bits
N/A 1385 272580 3240 bits
0001001000 1385 272610 200 bits
11 0001001011 1385 274350 120 bits
N/A 1385 274320 6840 bits
0001001011 1385 274350 120 bits
12 0001000011 1385 273210 7200 bits
N/A 1385 269460 5160 bits
0001000011 1385 273210 2520 bits
13 0001010011 1385 280230 360 bits
N/A 1385 252840 12440 bits
0000100111 1385 252840 240 bits
14 - - -
- - -
- - -
15 0001010100 1385 280200 720 bits
N/A 1385 280200 2200 bits
0001010100 1385 279930 360 bits
16 0000100010 1385 249750 40 bits
N/A 1385 247200 840 bits
0000100010 1385 249870 80 bits
18 - - -
- - -
- - -
19 0001010100 1385 280230 760 bits
N/A 1385 280200 4680 bits
0001010100 1385 279930 360 bits
21 0001010100 1385 280230 640 bits
N/A 1385 280200 7720 bits
0001010100 1385 279930 240 bits
23 0001010100 1385 280230 560 bits
N/A 1385 280200 4280 bits
0001010100 1385 279930 160 bits
25 0000011111 1385 251370 13080 bits
N/A 1385 214080 9720 bits
0000011111 1385 251370 480 bits
26 0000110011 1385 264210 19240 bits
N/A 1385 259440 15760 bits
0000110011 1385 264210 3440 bits
27 0001001101 1385 275700 320 bits
N/A 1385 275640 5240 bits
0001001101 1385 275670 280 bits
28 - - -
- - -
- - -
29 0001001010 1385 274260 800 bits
N/A 1385 274260 5920 bits
0001001010 1385 274260 800 bits
30 0001000000 1385 267840 240 bits
N/A 1385 267780 4720 bits
0001000000 1385 267810 200 bits
31 0001010100 1385 280230 760 bits
N/A 1385 280200 2480 bits
0001010100 1385 279930 360 bits
32 - - -
- - -
- - -
33 0000111100 1385 269460 9920 bits
N/A 1385 265680 2240 bits
0000111100 1385 269430 2160 bits
34 0001010010 1385 278790 40 bits
N/A 1385 277080 80 bits
0001010011 1385 279510 120 bits
36 0001001111 1385 276960 400 bits
N/A 1385 276960 3880 bits
0001001111 1385 276960 400 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