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]

1395 501060

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 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 4
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 0615 09F15 0615 04F15 0615 1015
Key 17a66a094f75da22d1898591eb0c6916
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1215 10F15 1215 04F15 1215 1915
Key 17a66a094f75da22d1898591eb0c6916
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 26F07 2115 19F15 2115 3015
Key 17a66a094f75da22d1898591eb0c6916
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2715 30F15 2715 19F15 2715 3615
Key 17a66a094f75da22d1898591eb0c6916
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2815 10F15 2815 04F15 2815 1915
Key 17a66a094f75da22d1898591eb0c6916
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2915 19F15 2915 30F15 2915 1015
Key 17a66a094f75da22d1898591eb0c6916
SVID 30
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 26F07 3315 04F15 3315 1015
Key 17a66a094f75da22d1898591eb0c6916

Authenticated Data

02 0000111110 1395 495930 1080 bits
N/A 1395 493440 480 bits
0000111011 1395 493350 40 bits
03 0000100110 1395 484350 8600 bits
N/A 1395 480840 2240 bits
0000100110 1395 483810 600 bits
04 0001000100 1395 501030 9360 bits
N/A 1395 498780 600 bits
0001000100 1395 499350 240 bits
05 0000010011 1395 474030 12080 bits
N/A 1395 469200 2800 bits
0000010011 1395 474030 920 bits
06 0001000111 1395 501030 760 bits
N/A 1395 501000 1080 bits
0001000111 1395 500730 360 bits
07 0000111110 1395 499230 9880 bits
N/A 1395 495540 10160 bits
0000111110 1395 499170 5080 bits
08 0000110010 1395 491850 7760 bits
N/A 1395 487860 4880 bits
0000110010 1395 491610 1840 bits
09 0000000101 1395 464790 6960 bits
N/A 1395 460920 160 bits
0000000101 1395 462090 880 bits
10 0001000101 1395 501030 8600 bits
N/A 1395 499320 2480 bits
0001000101 1395 500730 1960 bits
11 0001000011 1395 501030 7160 bits
N/A 1395 498180 1720 bits
0001000011 1395 498870 640 bits
12 0001000111 1395 501030 760 bits
N/A 1395 501000 6080 bits
0001000111 1395 500730 360 bits
13 0000110001 1395 487830 720 bits
N/A 1395 487680 2440 bits
0000110001 1395 487800 640 bits
14 - - -
- - -
- - -
15 0000011010 1395 477810 13560 bits
N/A 1395 473820 9960 bits
0000011010 1395 477330 2840 bits
16 0000110100 1395 489660 800 bits
N/A 1395 489660 3080 bits
0000110100 1395 489630 760 bits
18 - - -
- - -
- - -
19 0001000100 1395 501030 9840 bits
N/A 1395 498900 3480 bits
0001000100 1395 500730 1120 bits
21 0001000111 1395 501030 1360 bits
N/A 1395 500760 1320 bits
0001000111 1395 500730 360 bits
23 0000101011 1395 483900 320 bits
N/A 1395 483840 1560 bits
0000101011 1395 483870 280 bits
25 0000110011 1395 492030 12520 bits
N/A 1395 447600 3760 bits
0000110011 1395 492030 600 bits
26 0000111110 1395 499350 7680 bits
N/A 1395 495300 9520 bits
0000111110 1395 499350 1160 bits
27 0001000111 1395 501030 760 bits
N/A 1395 501000 3440 bits
0001000111 1395 500730 360 bits
28 0001000111 1395 501030 760 bits
N/A 1395 501000 4840 bits
0001000111 1395 500730 360 bits
29 0001000111 1395 501030 760 bits
N/A 1395 501000 7320 bits
0001000111 1395 500730 360 bits
30 0001000100 1395 501030 5960 bits
N/A 1395 499080 2160 bits
0001000100 1395 500730 1560 bits
31 0000110000 1395 487080 520 bits
N/A 1395 487020 4120 bits
0000110000 1395 487050 440 bits
32 - - -
- - -
- - -
33 0001000111 1395 501030 760 bits
N/A 1395 501000 8800 bits
0001000111 1395 500730 360 bits
34 0000010000 1395 468060 280 bits
N/A 1395 467940 8120 bits
0000010000 1395 468030 240 bits
36 0000000010 1395 459480 360 bits
N/A 1395 459420 4720 bits
0000000010 1395 459450 320 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