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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]

1404 510750

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 13
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 6
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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0303 02F15 2515 0303 0515 2515
Key 6d649123446aa7f090fcac42730e0233
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
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 0903 12F15 1115 0903 1015 1115
Key 6d649123446aa7f090fcac42730e0233
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1603 12F15 0515 1603 2515 0515
Key 6d649123446aa7f090fcac42730e0233
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2603 12F15 0815 2603 3315 0815
Key 6d649123446aa7f090fcac42730e0233
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3103 05F15 3315 3103 1215 3315
Key 6d649123446aa7f090fcac42730e0233
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3203 05F15 0815 3203 2515 0815
Key 6d649123446aa7f090fcac42730e0233
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001010100 1404 510720 200 bits
N/A 1404 476520 2840 bits
0000011111 1404 476520 80 bits
03 0001011000 1404 510720 80 bits
N/A 1404 510720 3520 bits
0001010111 1404 510420 480 bits
04 0001001100 1404 503970 640 bits
N/A 1404 503880 9320 bits
0001001100 1404 503880 560 bits
05 0001010101 1404 510720 8800 bits
N/A 1404 508800 2040 bits
0001010101 1404 510390 960 bits
06 0001010011 1404 508260 520 bits
N/A 1404 507960 280 bits
0001010011 1404 507990 440 bits
07 0000011011 1404 476370 3080 bits
N/A 1404 474420 12600 bits
0000011011 1404 476310 960 bits
08 0001010110 1404 510720 3440 bits
N/A 1404 509820 280 bits
0001010110 1404 510390 1040 bits
09 0001011000 1404 510720 80 bits
N/A 1404 510720 1600 bits
0001010111 1404 510420 480 bits
10 0000111000 1404 491730 360 bits
N/A 1404 491700 4760 bits
0000111000 1404 491700 320 bits
11 0000111101 1404 495870 2760 bits
N/A 1404 494340 4280 bits
0000111101 1404 495870 240 bits
12 0001010100 1404 510720 2960 bits
N/A 1404 488940 2480 bits
0000110011 1404 488940 640 bits
13 0001001110 1404 508770 5440 bits
N/A 1404 504720 40 bits
0001001110 1404 508770 160 bits
14 - - -
- - -
- - -
15 0001001000 1404 504690 5320 bits
N/A 1404 501300 3440 bits
0001001000 1404 501810 720 bits
16 0001011000 1404 510720 80 bits
N/A 1404 510720 1240 bits
0001010111 1404 510420 480 bits
18 - - -
- - -
- - -
19 0000111100 1404 494160 200 bits
N/A 1404 493980 5000 bits
0000111100 1404 493980 120 bits
21 0000111111 1404 499740 8920 bits
N/A 1404 495720 3600 bits
0000111111 1404 499590 2440 bits
23 0001001110 1404 505710 2480 bits
N/A 1404 504780 80 bits
0001001110 1404 505710 1360 bits
25 0001010100 1404 510720 9840 bits
N/A 1404 508320 2440 bits
0001010100 1404 510390 1560 bits
26 0001011000 1404 510720 80 bits
N/A 1404 510720 1880 bits
0001010111 1404 510420 480 bits
27 0000110010 1404 488310 600 bits
N/A 1404 488280 4200 bits
0000110010 1404 488310 600 bits
28 0001000101 1404 499650 520 bits
N/A 1404 499620 5680 bits
0001000101 1404 499650 520 bits
29 0000101100 1404 484710 600 bits
N/A 1404 484680 2360 bits
0000101100 1404 484680 480 bits
30 0000101000 1404 482460 680 bits
N/A 1404 482280 1320 bits
0000101001 1404 482490 40 bits
31 0001011000 1404 510720 80 bits
N/A 1404 510720 3600 bits
0001010111 1404 510420 480 bits
32 0001011000 1404 510720 80 bits
N/A 1404 510720 1480 bits
0001010111 1404 510420 480 bits
33 0001010101 1404 510720 5440 bits
N/A 1404 509340 920 bits
0001010101 1404 510390 1880 bits
34 0001001000 1404 501540 560 bits
N/A 1404 501540 6600 bits
0001001000 1404 501540 640 bits
36 0000111111 1404 499830 8280 bits
N/A 1404 495840 3680 bits
0000111111 1404 498270 720 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