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]

1400 419220

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 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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1105 04F15 1115 10F15 1105 2812
Key e964a01e9b37e7786c22f69c9f16519d
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 27F15 1400 30F15 1400 2912
Key e964a01e9b37e7786c22f69c9f16519d
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1903 28F12 1915 27F15 1903 2912
Key e964a01e9b37e7786c22f69c9f16519d
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2112 29F12 2115 23F15 2112 2715
Key e964a01e9b37e7786c22f69c9f16519d
SVID 23
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 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
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 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000110100 1400 414210 2560 bits
N/A 1400 412860 7840 bits
0000110100 1400 412890 40 bits
03 0000011100 1400 401730 9960 bits
N/A 1400 398700 1880 bits
0000011100 1400 401730 3200 bits
04 0000111010 1400 419190 4840 bits
N/A 1400 416640 1000 bits
0000111010 1400 418890 800 bits
05 0000001111 1400 391590 840 bits
N/A 1400 390840 120 bits
0000001111 1400 390870 280 bits
06 0001111010 1400 379020 280 bits
N/A 1400 379020 1640 bits
0001111010 1400 379080 360 bits
07 0000111110 1400 419070 280 bits
N/A 1400 419040 11200 bits
0000111110 1400 418890 40 bits
08 0000101000 1400 410010 12520 bits
N/A 1400 406020 5280 bits
0000101000 1400 409830 3120 bits
09 0000000001 1400 383490 1040 bits
N/A 1400 382560 3680 bits
0000000001 1400 382590 440 bits
10 0000111010 1400 419190 5120 bits
N/A 1400 416580 3360 bits
0000111010 1400 418110 1760 bits
11 0000111110 1400 419190 160 bits
N/A 1400 419160 520 bits
0000111001 1400 415890 40 bits
12 0000111100 1400 418890 640 bits
N/A 1400 417600 4080 bits
0000111011 1400 417630 760 bits
13 0000100111 1400 405270 280 bits
N/A 1400 405240 3800 bits
0000100111 1400 405270 280 bits
14 - - -
- - -
- - -
15 0000011011 1400 398160 400 bits
N/A 1400 398100 1760 bits
0000011011 1400 398130 360 bits
16 0000010110 1400 398670 12560 bits
N/A 1400 358200 2640 bits
0000010110 1400 397110 2720 bits
18 - - -
- - -
- - -
19 0000111110 1400 419190 80 bits
N/A 1400 419160 3880 bits
0000110111 1400 418890 2000 bits
21 0000111110 1400 419190 440 bits
N/A 1400 419160 4680 bits
0000111110 1400 418890 40 bits
23 0000111100 1400 419190 1680 bits
N/A 1400 393960 1120 bits
0000111100 1400 418710 360 bits
25 0000100010 1400 406200 12560 bits
N/A 1400 402240 1400 bits
0000100010 1400 402270 280 bits
26 0000101111 1400 414090 12040 bits
N/A 1400 410100 4880 bits
0000101111 1400 414090 2080 bits
27 0000111100 1400 419190 6200 bits
N/A 1400 417600 6080 bits
0000111100 1400 418890 1760 bits
28 0000111110 1400 419190 440 bits
N/A 1400 418980 3200 bits
0000111110 1400 418890 40 bits
29 0000111110 1400 419190 920 bits
N/A 1400 418860 10360 bits
0000111110 1400 418890 40 bits
30 0000111000 1400 419190 9800 bits
N/A 1400 415380 3720 bits
0000111000 1400 417630 360 bits
31 0000010111 1400 395970 680 bits
N/A 1400 395940 320 bits
0000010111 1400 395940 640 bits
32 - - -
- - -
- - -
33 0000111010 1400 416790 440 bits
N/A 1400 416700 9080 bits
0000111010 1400 416790 440 bits
34 0000001100 1400 389340 640 bits
N/A 1400 389280 9520 bits
0000001100 1400 389310 600 bits
36 0001111010 1400 382590 8920 bits
N/A 1400 378660 9600 bits
0001111010 1400 381870 560 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