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]

1396 124710

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 4
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 13F15 2715 0715 0815 2715
Key c7c27ff87ae1d14bd93eddb96106a86e
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 31F15 2615 1800 2315 2615
Key c7c27ff87ae1d14bd93eddb96106a86e
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 26F15 2915 2115 2315 2915
Key c7c27ff87ae1d14bd93eddb96106a86e
SVID 23
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3315 28F15 2315 3315 3115 2315
Key c7c27ff87ae1d14bd93eddb96106a86e

Authenticated Data

02 0000100111 1396 104070 13880 bits
N/A 1396 100740 5680 bits
0000100111 1396 104070 5200 bits
03 0001001111 1396 124290 40 bits
N/A 1396 124260 2800 bits
0001001111 1396 124290 40 bits
04 0000111011 1396 116430 5120 bits
N/A 1396 112680 2800 bits
0000111011 1396 113610 1120 bits
05 0001001000 1396 123990 9760 bits
N/A 1396 119040 2080 bits
0001001000 1396 123750 920 bits
06 0001000000 1396 115650 360 bits
N/A 1396 115380 1640 bits
0001000000 1396 115410 200 bits
07 0001001111 1396 124680 560 bits
N/A 1396 124680 9320 bits
0001001111 1396 124380 160 bits
08 0001001110 1396 124680 2000 bits
N/A 1396 124020 7520 bits
0001001110 1396 124350 880 bits
09 0001000001 1396 116670 320 bits
N/A 1396 115080 440 bits
0001000001 1396 116670 40 bits
10 0000011101 1396 98430 11840 bits
N/A 1396 94440 4360 bits
0000011101 1396 98430 2520 bits
11 0000100110 1396 99930 160 bits
N/A 1396 98820 2880 bits
0000100100 1396 98910 320 bits
12 0000011001 1396 93450 2200 bits
N/A 1396 89160 440 bits
0000011001 1396 93270 600 bits
13 0001001111 1396 124680 640 bits
N/A 1396 124260 5920 bits
0001001111 1396 124290 40 bits
14 - - -
- - -
- - -
15 0001001011 1396 124320 6040 bits
N/A 1396 122220 8840 bits
0001001011 1396 124290 3000 bits
16 0000001000 1396 85110 10320 bits
N/A 1396 81600 2920 bits
0000001000 1396 84270 240 bits
18 - - -
- - -
- - -
19 0000111010 1396 112110 160 bits
N/A 1396 112080 3200 bits
0000111010 1396 112080 160 bits
21 0001001111 1396 124680 560 bits
N/A 1396 124680 8960 bits
0001001111 1396 124380 160 bits
23 0001001110 1396 124680 2320 bits
N/A 1396 124080 3440 bits
0001001110 1396 124350 720 bits
25 0000011001 1396 96210 11520 bits
N/A 1396 92280 880 bits
0000011001 1396 93330 1440 bits
26 0001001110 1396 124680 2320 bits
N/A 1396 124020 5560 bits
0001001110 1396 124110 560 bits
27 0001001001 1396 121020 480 bits
N/A 1396 121020 16440 bits
0001001001 1396 121020 480 bits
28 0000111101 1396 113610 200 bits
N/A 1396 113580 2240 bits
0000111101 1396 113610 200 bits
29 0000110011 1396 110010 5400 bits
N/A 1396 107520 6840 bits
0000110011 1396 108870 920 bits
30 0000111011 1396 116670 10000 bits
N/A 1396 112740 11960 bits
0000111011 1396 114630 1800 bits
31 0001001110 1396 124680 1840 bits
N/A 1396 123720 1960 bits
0001001110 1396 124050 280 bits
32 - - -
- - -
- - -
33 0001001111 1396 124680 560 bits
N/A 1396 124680 800 bits
0001001111 1396 124380 160 bits
34 0000111010 1396 115590 6920 bits
N/A 1396 111600 8640 bits
0000111010 1396 115590 800 bits
36 0000110001 1396 107370 520 bits
N/A 1396 106260 3920 bits
0000110001 1396 106290 40 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