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]

1381 76590

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 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 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 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0311 13F11 1611 0311 2515 1611
Key f2b54be9e22ebf86f789d6d17a36a46c
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0711 23F11 1311 0711 2915 1311
Key f2b54be9e22ebf86f789d6d17a36a46c
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0802 34F15 1311 0802 1611 1311
Key f2b54be9e22ebf86f789d6d17a36a46c
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1506 25F15 3415 1506 1311 3415
Key f2b54be9e22ebf86f789d6d17a36a46c
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 2611 16F11 3315 2611 2311 3315
Key f2b54be9e22ebf86f789d6d17a36a46c
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3111 12F15 3315 3111 2311 3315
Key f2b54be9e22ebf86f789d6d17a36a46c
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 0001011011 1381 57570 2400 bits
N/A 1381 55260 5000 bits
0001011011 1381 55290 40 bits
03 0001111110 1381 76560 400 bits
N/A 1381 76560 9840 bits
0001111101 1381 76260 800 bits
04 0001100000 1381 59190 2760 bits
N/A 1381 18840 8920 bits
0001100000 1381 59130 600 bits
05 0001110111 1381 72480 520 bits
N/A 1381 72480 5320 bits
0001110111 1381 72450 480 bits
06 0001100100 1381 61350 120 bits
N/A 1381 59400 600 bits
0001100010 1381 59520 80 bits
07 0001111110 1381 76560 400 bits
N/A 1381 76560 6080 bits
0001111101 1381 76260 800 bits
08 0001111110 1381 76560 40 bits
N/A 1381 76560 6480 bits
0001111101 1381 76230 760 bits
09 0001101010 1381 64350 120 bits
N/A 1381 64380 1080 bits
0001101010 1381 64380 160 bits
10 0001001011 1381 49650 6160 bits
N/A 1381 46020 1040 bits
0001001011 1381 46110 560 bits
11 0001010011 1381 50520 80 bits
N/A 1381 50640 1440 bits
0001010011 1381 50520 80 bits
12 0001000101 1381 43410 4880 bits
N/A 1381 42120 3840 bits
0001000101 1381 43410 1400 bits
13 0001111110 1381 76560 1160 bits
N/A 1381 76200 10800 bits
0001111101 1381 76230 760 bits
14 - - -
- - -
- - -
15 0001111110 1381 76560 200 bits
N/A 1381 76560 9280 bits
0001111101 1381 76170 720 bits
16 0000111111 1381 42270 7040 bits
N/A 1381 38460 6880 bits
0000111111 1381 38490 40 bits
18 - - -
- - -
- - -
19 0001011010 1381 58500 6440 bits
N/A 1381 52740 160 bits
0001011010 1381 54690 40 bits
21 0001111101 1381 76110 600 bits
N/A 1381 76080 6600 bits
0001111101 1381 76080 560 bits
23 0001111110 1381 76560 680 bits
N/A 1381 76320 4240 bits
0001111101 1381 76260 800 bits
25 0001001111 1381 48600 720 bits
N/A 1381 48600 720 bits
0001001111 1381 48570 680 bits
26 0001111110 1381 76560 400 bits
N/A 1381 76560 5240 bits
0001111101 1381 76260 800 bits
27 0001110101 1381 71070 280 bits
N/A 1381 71040 11920 bits
0001110101 1381 71070 280 bits
28 - - -
- - -
- - -
29 0001010011 1381 54690 5000 bits
N/A 1381 50640 1680 bits
0001010011 1381 54510 1000 bits
30 0001100101 1381 65190 8640 bits
N/A 1381 61260 7680 bits
0001100101 1381 64950 800 bits
31 0001111110 1381 76560 400 bits
N/A 1381 76560 520 bits
0001111101 1381 76260 600 bits
32 - - -
- - -
- - -
33 0001111011 1381 76560 9040 bits
N/A 1381 32040 1960 bits
0001111011 1381 76230 1760 bits
34 0001110000 1381 69750 7280 bits
N/A 1381 68340 7880 bits
0001110000 1381 69750 2680 bits
36 0001100000 1381 60750 5440 bits
N/A 1381 58440 5800 bits
0001100000 1381 60750 1880 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