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]

1410 140550

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0203 29F15 1115 0203 3015 1115
Key 3fab32646aa990cf78b6266570444503
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0703 11F15 3015 0703 0815 3015
Key 3fab32646aa990cf78b6266570444503
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 1003 29F15 1115 1003 1915 1115
Key 3fab32646aa990cf78b6266570444503
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1203 11F15 1915 1203 2815 1915
Key 3fab32646aa990cf78b6266570444503
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
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 2603 04F15 1915 2603 2815 1915
Key 3fab32646aa990cf78b6266570444503
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2703 03F15 3015 2703 0815 3015
Key 3fab32646aa990cf78b6266570444503
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3303 04F15 1915 3303 2815 1915
Key 3fab32646aa990cf78b6266570444503

Authenticated Data

02 0001101010 1410 140520 80 bits
N/A 1410 140520 3120 bits
0001101001 1410 140220 480 bits
03 0001011001 1410 134070 10320 bits
N/A 1410 130200 15960 bits
0001011001 1410 131430 680 bits
04 0000101101 1410 107250 9000 bits
N/A 1410 104100 2760 bits
0000101101 1410 105630 1240 bits
05 0001001011 1410 124080 5320 bits
N/A 1410 122220 11280 bits
0001001011 1410 123930 2000 bits
06 0000110111 1410 110190 640 bits
N/A 1410 109800 6080 bits
0000110111 1410 110190 240 bits
07 0001101010 1410 140520 80 bits
N/A 1410 140520 5520 bits
0001101001 1410 140220 480 bits
08 0001100111 1410 140520 5080 bits
N/A 1410 139080 2840 bits
0001100111 1410 139170 640 bits
09 0000111101 1410 114060 760 bits
N/A 1410 114060 3320 bits
0000111101 1410 114060 760 bits
10 0001101010 1410 140520 80 bits
N/A 1410 140520 2000 bits
0001101001 1410 140220 480 bits
11 0000100111 1410 104370 9440 bits
N/A 1410 100380 5120 bits
0000100111 1410 101850 1200 bits
12 0001101010 1410 140520 80 bits
N/A 1410 140520 3200 bits
0001101001 1410 140220 480 bits
13 0001100001 1410 135300 320 bits
N/A 1410 135300 2560 bits
0001100001 1410 135300 320 bits
14 - - -
- - -
- - -
15 0001010100 1410 131550 18360 bits
N/A 1410 127560 9800 bits
0001010100 1410 131550 3760 bits
16 0001010111 1410 129090 40 bits
N/A 1410 129060 4520 bits
0001010111 1410 129180 80 bits
18 - - -
- - -
- - -
19 0001101000 1410 140520 6280 bits
N/A 1410 139260 800 bits
0001101000 1410 140190 1640 bits
21 0001000010 1410 120600 13600 bits
N/A 1410 116640 4600 bits
0001000010 1410 118830 1720 bits
23 0001000110 1410 122730 16680 bits
N/A 1410 118800 3320 bits
0001000110 1410 122730 3880 bits
25 0001100001 1410 136170 1960 bits
N/A 1410 135540 2720 bits
0001100001 1410 136170 1000 bits
26 0001101010 1410 140520 80 bits
N/A 1410 140520 3400 bits
0001101001 1410 140220 480 bits
27 0001101010 1410 140520 80 bits
N/A 1410 140520 3840 bits
0001101001 1410 140220 480 bits
28 0000100110 1410 103770 6240 bits
N/A 1410 99840 1400 bits
0000100110 1410 103770 480 bits
29 0001100101 1410 140520 14000 bits
N/A 1410 137940 2280 bits
0001100101 1410 139290 3200 bits
30 0001100101 1410 140520 12720 bits
N/A 1410 137700 4160 bits
0001100101 1410 140190 3600 bits
31 0001001100 1410 122700 320 bits
N/A 1410 122640 2640 bits
0001001100 1410 122670 240 bits
32 0001100001 1410 139170 14680 bits
N/A 1410 135300 400 bits
0001100001 1410 139110 2040 bits
33 0001101010 1410 140520 80 bits
N/A 1410 140520 3240 bits
0001101001 1410 140220 480 bits
34 0001001001 1410 121080 560 bits
N/A 1410 121080 11760 bits
0001001001 1410 121050 520 bits
36 0000111010 1410 111900 320 bits
N/A 1410 111900 9520 bits
0000111010 1410 111900 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 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