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 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]

1377 261180

Authenticated NMA Status
NMAS OPERATIONAL CID 0 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 10
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 8
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 0302 08F02 0301 31F02 0302 2502
Key 52320a743749f02a7964e5e73008c034
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0502 31F02 0501 09F02 0502 2502
Key 52320a743749f02a7964e5e73008c034
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0702 08F02 0701 29F02 0702 1902
Key 52320a743749f02a7964e5e73008c034
SVID 8
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 1302 26F02 1301 08F02 1302 3102
Key 52320a743749f02a7964e5e73008c034
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1502 08F02 1501 25F02 1502 3602
Key 52320a743749f02a7964e5e73008c034
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 08F02 1800 29F02 1800 3602
Key 52320a743749f02a7964e5e73008c034
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2302 26F02 2301 31F02 2302 0902
Key 52320a743749f02a7964e5e73008c034
SVID 26
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 3402 36F02 3401 25F02 3402 0802
Key 52320a743749f02a7964e5e73008c034

Authenticated Data

02 0000011101 1377 248130 3040 bits
N/A 1377 246600 7920 bits
0000011101 1377 248130 240 bits
03 0000110101 1377 261150 80 bits
N/A 1377 261060 720 bits
0000110100 1377 260850 480 bits
04 0000011110 1377 247350 120 bits
N/A 1377 247380 4840 bits
0000011110 1377 247320 80 bits
05 0000110101 1377 261150 80 bits
N/A 1377 261060 720 bits
0000110100 1377 260850 480 bits
06 0000100100 1377 252450 6040 bits
N/A 1377 250800 4320 bits
0000100100 1377 252450 1000 bits
07 0000110101 1377 261150 80 bits
N/A 1377 261060 80 bits
0000000111 1377 233490 40 bits
08 0000110100 1377 261150 2600 bits
N/A 1377 260760 520 bits
0000110100 1377 260850 480 bits
09 0000101100 1377 256230 720 bits
N/A 1377 256200 6640 bits
0000101100 1377 256200 640 bits
10 0000001011 1377 239490 8760 bits
N/A 1377 236040 2240 bits
0000001011 1377 239490 2520 bits
11 0000011000 1377 244170 520 bits
N/A 1377 244140 3000 bits
0000011000 1377 244140 440 bits
12 0000000101 1377 235170 6480 bits
N/A 1377 232260 560 bits
0000000101 1377 235170 2160 bits
13 0000110101 1377 261150 80 bits
N/A 1377 261060 720 bits
0000110100 1377 260850 480 bits
14 - - -
- - -
- - -
15 0000110101 1377 261150 80 bits
N/A 1377 261060 280 bits
0000110100 1377 260850 240 bits
16 - - -
- - -
- - -
18 - - -
- - -
- - -
19 0000001110 1377 238770 800 bits
N/A 1377 234540 160 bits
0000001000 1377 236070 480 bits
21 0000110011 1377 260010 200 bits
N/A 1377 259980 80 bits
0000110011 1377 259980 160 bits
23 0000110101 1377 261150 80 bits
N/A 1377 261060 680 bits
0000110100 1377 260850 480 bits
25 0000010011 1377 240870 280 bits
N/A 1377 240840 3640 bits
0000010011 1377 240900 280 bits
26 0000110100 1377 261150 2440 bits
N/A 1377 260400 320 bits
0000110100 1377 260850 560 bits
27 0000101110 1377 257370 640 bits
N/A 1377 257340 6360 bits
0000101110 1377 257370 640 bits
28 - - -
- - -
- - -
29 0000001011 1377 236130 120 bits
- - -
0000000001 1377 232350 80 bits
30 0000100010 1377 253710 12800 bits
N/A 1377 249720 4000 bits
0000100010 1377 251910 1800 bits
31 - - -
- - -
- - -
32 - - -
- - -
- - -
33 - - -
- - -
- - -
34 0000110101 1377 261150 80 bits
N/A 1377 261060 280 bits
0000110100 1377 260850 280 bits
36 0000100011 1377 254370 14400 bits
N/A 1377 250500 5720 bits
0000100011 1377 253710 4200 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.

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