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]

1390 30630

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 9
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 0215 05F15 3615 0215 3015 3615
Key cdd3bf4d93e9df7ea86227e9ebecf427
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 30F15 0815 0715 1515 0815
Key cdd3bf4d93e9df7ea86227e9ebecf427
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 36F15 2115 1915 0415 2115
Key cdd3bf4d93e9df7ea86227e9ebecf427
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2715 15F15 3015 2715 2115 3015
Key cdd3bf4d93e9df7ea86227e9ebecf427
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2915 04F15 2115 2915 3015 2115
Key cdd3bf4d93e9df7ea86227e9ebecf427
SVID 30
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 3415 08F15 3015 3415 1515 3015
Key cdd3bf4d93e9df7ea86227e9ebecf427
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000110001 1390 30600 720 bits
N/A 1390 30600 13640 bits
0000110001 1390 30300 320 bits
03 0000100001 1390 21000 40 bits
N/A 1390 16980 6760 bits
0000100001 1390 21030 40 bits
04 0001101001 1389 601200 11160 bits
N/A 1389 597240 5120 bits
0001101001 1389 597930 680 bits
05 0000010110 1390 14040 240 bits
N/A 1390 14040 4360 bits
0000010110 1390 14040 240 bits
06 0001110011 1390 1770 10160 bits
N/A 1389 603120 7160 bits
0001110011 1389 603150 120 bits
07 0000110001 1390 30600 720 bits
N/A 1390 30600 12600 bits
0000110001 1390 30300 320 bits
08 0000101100 1390 30600 9680 bits
N/A 1390 27000 11080 bits
0000101100 1390 30270 2600 bits
09 0000000111 1390 5280 560 bits
N/A 1390 5280 2080 bits
0000000111 1390 5280 560 bits
10 0000100111 1390 26970 4680 bits
N/A 1390 24000 5360 bits
0000100111 1390 26370 1480 bits
11 0000110000 1390 29520 80 bits
N/A 1390 29520 5880 bits
0000110000 1390 29520 80 bits
12 0000100010 1390 23010 10320 bits
N/A 1390 20580 3200 bits
0000100010 1390 23010 2400 bits
13 0000001101 1390 11790 10920 bits
N/A 1390 8580 1640 bits
0000001101 1390 11550 2000 bits
14 - - -
- - -
- - -
15 0000101101 1390 30600 10760 bits
N/A 1390 6660 1360 bits
0000101101 1390 28410 240 bits
16 0000011000 1390 16350 4040 bits
N/A 1390 15360 5960 bits
0000011000 1390 16350 1840 bits
18 - - -
- - -
- - -
19 0000110001 1390 30600 720 bits
N/A 1390 30600 1000 bits
0000110001 1390 30300 320 bits
21 0001100110 1389 597510 5880 bits
N/A 1389 595740 2440 bits
0001100110 1389 597510 1840 bits
23 0001110100 1389 604140 640 bits
N/A 1389 604140 6040 bits
0001110100 1389 604140 640 bits
25 0000100111 1390 28050 9240 bits
N/A 1390 24060 7600 bits
0000100111 1390 26730 160 bits
26 0000010010 1390 13110 4960 bits
N/A 1390 11520 520 bits
0000010010 1390 13110 2160 bits
27 0000110001 1390 30600 720 bits
N/A 1390 30600 6400 bits
0000110001 1390 30300 320 bits
28 - - -
- - -
- - -
29 0000110001 1390 30600 720 bits
N/A 1390 30600 3640 bits
0000110001 1390 30300 320 bits
30 0000101101 1390 30600 17120 bits
N/A 1390 27960 5240 bits
0000101101 1390 30270 4720 bits
31 0000001010 1390 7050 520 bits
N/A 1390 7020 2720 bits
0000001010 1390 7050 520 bits
32 - - -
- - -
- - -
33 0000011000 1390 15570 720 bits
N/A 1390 14400 1560 bits
0000011000 1390 15570 240 bits
34 0000110001 1390 30600 720 bits
N/A 1390 30600 4640 bits
0000110001 1390 30300 320 bits
36 0000101101 1390 30600 17240 bits
N/A 1390 27840 1880 bits
0000101101 1390 30270 3120 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