Input Options:

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 raw navigation data bits for the last 12 sub-frames are available in 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]

1285 564120

Tesla Chain in Force
NMAS TEST CID 1 CPKS NOMINAL
PKID 1 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 1 NPKT ECDSA_P256 MID 0

OSNMA Tag Verification Inputs

Satellites in View 7
01 02 03 04 05 07 08 09 10 11 12 13 14 15 18 19 20 21 22 24 25 26 27 30 31 33 34
Satellites Transmitting OSNMA 5
01 02 03 04 05 07 08 09 10 11 12 13 14 15 18 19 20 21 22 24 25 26 27 30 31 33 34
SVID 08
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags 1202 05F15 1215 04F15 1202 1115
Key 2d8bb762ffc073e027b46337a3669213
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags 1302 33F15 1315 08F15 1302 0715
Key 2d8bb762ffc073e027b46337a3669213
SVID 24
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags 2402 08F15 2415 05F15 2402 0315
Key 2d8bb762ffc073e027b46337a3669213
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags 2602 03F15 2615 33F15 2602 0815
Key 2d8bb762ffc073e027b46337a3669213
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags 3102 08F15 3115 33F15 3102 0515
Key 2d8bb762ffc073e027b46337a3669213
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10

Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

01 - - -
- - -
- - -
02 - - -
- - -
- - -
03 - - -
- - -
- - -
04 - - -
- - -
- - -
05 - - -
- - -
- - -
07 - - -
- - -
- - -
08 0000110001 1285 564090 1360 bits
N/A 1285 563700 40 bits
0000110001 1285 563790 160 bits
09 - - -
- - -
- - -
10 - - -
- - -
- - -
11 - - -
- - -
- - -
12 0000110010 1285 564090 40 bits
N/A 1285 564060 280 bits
0000110001 1285 563790 200 bits
13 0000110010 1285 564090 40 bits
N/A 1285 564060 280 bits
0000110001 1285 563790 200 bits
14 - - -
- - -
- - -
15 - - -
- - -
- - -
18 - - -
- - -
- - -
19 - - -
- - -
- - -
20 - - -
- - -
- - -
21 0000110001 1285 563760 80 bits
N/A 1285 563760 40 bits
0000110001 1285 563730 80 bits
22 - - -
- - -
- - -
24 0000110010 1285 564090 40 bits
N/A 1285 564060 280 bits
0000110001 1285 563790 200 bits
25 - - -
- - -
- - -
26 0000110010 1285 564090 40 bits
N/A 1285 564060 280 bits
0000110001 1285 563790 200 bits
27 - - -
- - -
- - -
30 - - -
- - -
- - -
31 0000110010 1285 564090 40 bits
N/A 1285 564060 280 bits
0000110001 1285 563790 200 bits
33 0000101101 1285 564090 2040 bits
- - -
0000101101 1285 563790 240 bits
34 - - -
- - -
- - -


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.

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