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]

1383 420780

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 13
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 7
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 0304 05F15 0315 08F15 0304 3015
Key 19505e20ad03997655c21759b8726133
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0404 06F15 0415 31F15 0404 3615
Key 19505e20ad03997655c21759b8726133
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0904 36F15 0915 06F15 0904 0515
Key 19505e20ad03997655c21759b8726133
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1104 10F15 1115 16F15 1104 3615
Key 19505e20ad03997655c21759b8726133
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 30F15 1400 05F15 1400 2715
Key 19505e20ad03997655c21759b8726133
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1504 27F15 1515 30F15 1504 0615
Key 19505e20ad03997655c21759b8726133
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 3404 36F15 3415 05F15 3404 2715
Key 19505e20ad03997655c21759b8726133
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 0000111100 1383 418140 640 bits
N/A 1383 418140 11000 bits
0000111100 1383 418140 640 bits
03 0001000001 1383 420750 120 bits
N/A 1383 420720 1240 bits
0001000000 1383 420450 480 bits
04 0001000001 1383 420750 120 bits
N/A 1383 420720 4760 bits
0000111010 1383 420330 1480 bits
05 0000111110 1383 420750 8280 bits
N/A 1383 418800 3400 bits
0000111110 1383 420450 360 bits
06 0001000000 1383 420750 1840 bits
N/A 1383 420300 5120 bits
0001000000 1383 420330 360 bits
07 0000010110 1383 397290 320 bits
N/A 1383 395280 120 bits
0000011010 1383 397380 40 bits
08 0000011001 1383 400530 4040 bits
N/A 1383 397020 40 bits
0000011001 1383 398970 1160 bits
09 0001000001 1383 420750 120 bits
N/A 1383 420720 7040 bits
0001000000 1383 420450 520 bits
10 0000111011 1383 417180 120 bits
N/A 1383 417180 8480 bits
0000111011 1383 417180 160 bits
11 0001000001 1383 420750 120 bits
N/A 1383 420720 12200 bits
0001000000 1383 420450 520 bits
12 0000110010 1383 412110 560 bits
N/A 1383 412020 6200 bits
0000110010 1383 412050 480 bits
13 0000000111 1383 389970 10760 bits
N/A 1383 385380 9560 bits
0000000111 1383 387930 1200 bits
14 - - -
- - -
- - -
15 0001000001 1383 420750 120 bits
N/A 1383 420720 1960 bits
0001000000 1383 420450 520 bits
16 0000101000 1383 409710 10520 bits
N/A 1383 406020 6240 bits
0000101000 1383 409710 1520 bits
18 - - -
- - -
- - -
19 0000110110 1383 414660 760 bits
N/A 1383 414540 3280 bits
0000110110 1383 414660 760 bits
21 0001111110 1383 385230 18080 bits
N/A 1383 381360 12680 bits
0001111110 1383 383970 3680 bits
23 0000010001 1383 392040 240 bits
N/A 1383 392040 120 bits
0000010001 1383 392010 200 bits
25 0000110100 1383 413430 760 bits
N/A 1383 413340 8720 bits
0000110100 1383 413370 680 bits
26 0000010000 1383 393270 2960 bits
N/A 1383 391440 520 bits
0000010000 1383 391470 280 bits
27 0000111101 1383 420750 7840 bits
N/A 1383 418740 1960 bits
0000111101 1383 420450 2520 bits
28 - - -
- - -
- - -
29 0000101011 1383 407550 40 bits
N/A 1383 407400 5320 bits
0000101011 1383 407520 80 bits
30 0000111011 1383 420750 14520 bits
N/A 1383 417060 2320 bits
0000111011 1383 420450 4680 bits
31 0000011001 1383 401100 4200 bits
N/A 1383 397020 1480 bits
0000011001 1383 398970 880 bits
32 - - -
- - -
- - -
33 0000100001 1383 401970 680 bits
N/A 1383 401940 2000 bits
0000100001 1383 401970 680 bits
34 0001000001 1383 420750 120 bits
N/A 1383 420720 5920 bits
0001000000 1383 420450 520 bits
36 0000111110 1383 420750 10440 bits
N/A 1383 419100 5720 bits
0000111110 1383 420450 1640 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