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]

1420 519630

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 12
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 25F15 0815 0715 2915 0815
Key 7f5269db110960a224b170e408cde389
SVID 8
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 1015 25F15 1215 1015 1115 1215
Key 7f5269db110960a224b170e408cde389
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1615 31F15 1215 1615 2515 1215
Key 7f5269db110960a224b170e408cde389
SVID 19
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 2315 29F15 1915 2315 0415 1915
Key 7f5269db110960a224b170e408cde389
SVID 25
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 2614 32F15 2915 2614 0815 2915
Key 7f5269db110960a224b170e408cde389
SVID 29
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3315 25F15 1215 3315 2915 1215
Key 7f5269db110960a224b170e408cde389

Authenticated Data

02 0000101001 1420 486810 11240 bits
N/A 1420 482820 2640 bits
0000101001 1420 486630 3600 bits
03 0001011100 1420 516390 8640 bits
N/A 1420 513120 2840 bits
0001011100 1420 515790 1760 bits
04 0001000111 1420 504450 19080 bits
N/A 1420 500580 3280 bits
0001000111 1420 502710 1840 bits
05 0001010010 1420 507660 720 bits
N/A 1420 507660 1640 bits
0001010010 1420 507630 720 bits
06 0001001100 1420 503970 680 bits
N/A 1420 503940 2840 bits
0001001100 1420 503940 640 bits
07 0001100110 1420 519600 720 bits
N/A 1420 519600 360 bits
0001100110 1420 519300 320 bits
08 0001100110 1420 519600 1280 bits
N/A 1420 519000 6320 bits
0001100110 1420 519270 40 bits
09 0001001100 1420 507540 5560 bits
N/A 1420 503640 2960 bits
0001001100 1420 504510 720 bits
10 0001100110 1420 519600 720 bits
N/A 1420 519600 360 bits
0001100110 1420 519300 320 bits
11 0000101100 1420 484440 160 bits
N/A 1420 484380 960 bits
0000101100 1420 484470 160 bits
12 0001100001 1420 519600 13080 bits
N/A 1420 516360 2960 bits
0001100001 1420 519270 5720 bits
13 0001011010 1420 515970 15880 bits
N/A 1420 512040 9760 bits
0001011010 1420 515790 3680 bits
14 - - -
- - -
- - -
15 0001010000 1420 506370 680 bits
N/A 1420 506340 9480 bits
0001010000 1420 506370 680 bits
16 0001100110 1420 519600 720 bits
N/A 1420 519600 360 bits
0001100110 1420 519300 320 bits
18 - - -
- - -
- - -
19 0001100101 1420 519600 800 bits
N/A 1420 499320 5600 bits
0001000101 1420 499290 40 bits
21 0001011011 1420 512790 400 bits
N/A 1420 512760 16600 bits
0001011011 1420 512790 400 bits
23 0001100110 1420 519600 720 bits
N/A 1420 519600 360 bits
0001100110 1420 519300 320 bits
25 0001100101 1420 519600 3760 bits
N/A 1420 518460 200 bits
0001100101 1420 518970 240 bits
26 0001100110 1420 519600 520 bits
N/A 1420 519600 280 bits
0001100110 1420 519300 120 bits
27 0001001110 1420 507420 3440 bits
N/A 1420 504780 12080 bits
0001001110 1420 504780 160 bits
28 0001000111 1420 504510 13840 bits
N/A 1420 500640 3240 bits
0001000111 1420 504270 1080 bits
29 0001100101 1420 519600 3320 bits
N/A 1420 518940 11560 bits
0001100101 1420 519270 760 bits
30 0000111111 1420 495900 320 bits
N/A 1420 495900 8040 bits
0000111111 1420 495870 280 bits
31 0001100101 1420 519600 2360 bits
N/A 1420 518820 4720 bits
0001100101 1420 518850 520 bits
32 0001100001 1420 516630 1000 bits
N/A 1420 516180 3360 bits
0001100001 1420 516630 440 bits
33 0001100110 1420 519600 600 bits
N/A 1420 519600 320 bits
0001100110 1420 519300 200 bits
34 0001000011 1420 498360 400 bits
N/A 1420 498300 7480 bits
0001000011 1420 498330 360 bits
36 0000110011 1420 492450 9200 bits
N/A 1420 488460 2000 bits
0000110011 1420 490470 800 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 4 ADKD types are: ADKD0, ADKD2, 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 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 or may not authenticate their own navigation message (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