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]

1417 129390

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 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 0411 19F15 0615 0411 2315 0615
Key a5a73845cb0964ea659f97dbbd00f2d8
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 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 18
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 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2111 06F15 1915 2111 2315 1915
Key a5a73845cb0964ea659f97dbbd00f2d8
SVID 23
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 2811 31F15 2315 2811 1915 2315
Key a5a73845cb0964ea659f97dbbd00f2d8
SVID 31
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3611 34F15 0915 3611 0615 0915
Key a5a73845cb0964ea659f97dbbd00f2d8

Authenticated Data

02 0000111110 1417 114420 400 bits
N/A 1417 114420 2560 bits
0000111110 1417 114510 440 bits
03 0000100100 1417 99030 480 bits
N/A 1417 99000 5160 bits
0000100100 1417 99000 440 bits
04 0001010111 1417 129360 400 bits
N/A 1417 129360 4440 bits
0001010110 1417 129060 280 bits
05 0000011000 1417 91650 520 bits
N/A 1417 91620 2120 bits
0000011000 1417 91620 480 bits
06 0001010110 1417 129360 2560 bits
N/A 1417 128760 3200 bits
0001010110 1417 129030 600 bits
07 0001000001 1417 116040 40 bits
N/A 1417 116040 8800 bits
0001000001 1417 116040 40 bits
08 0000110010 1417 107160 400 bits
N/A 1417 107100 7800 bits
0000110010 1417 107130 360 bits
09 0001010100 1417 129360 4600 bits
N/A 1417 127680 2320 bits
0001010100 1417 129030 1960 bits
10 0001010100 1417 128250 800 bits
N/A 1417 127740 6040 bits
0001010100 1417 127770 680 bits
11 0001010010 1417 129360 7520 bits
N/A 1417 126420 2600 bits
0001010010 1417 126450 520 bits
12 0001001110 1417 127770 5680 bits
N/A 1417 124020 5560 bits
0001001110 1417 127770 1280 bits
13 0000110000 1417 106290 840 bits
N/A 1417 105900 7720 bits
0000110000 1417 105870 280 bits
14 - - -
- - -
- - -
15 0000011111 1417 95940 640 bits
N/A 1417 95940 2120 bits
0000011111 1417 95910 600 bits
16 0000110011 1417 107700 320 bits
N/A 1417 107640 2800 bits
0000110011 1417 107670 280 bits
18 - - -
- - -
- - -
19 0001010101 1417 129360 2920 bits
N/A 1417 127860 7560 bits
0001010101 1417 129030 320 bits
21 0001010111 1417 129360 400 bits
N/A 1417 129360 4600 bits
0001010110 1417 129060 120 bits
23 0001010010 1417 129360 6960 bits
N/A 1417 126060 8320 bits
0001010010 1417 129030 440 bits
25 0000110110 1417 109740 640 bits
N/A 1417 109740 2000 bits
0000110110 1417 109740 640 bits
26 0000111101 1417 117270 7160 bits
N/A 1417 113700 9320 bits
0000111101 1417 117270 1160 bits
27 0001010110 1417 129360 520 bits
N/A 1417 128580 6640 bits
0001010110 1417 128610 200 bits
28 0001010111 1417 129360 400 bits
N/A 1417 129360 3960 bits
0001010110 1417 129060 800 bits
29 0001010001 1417 125910 600 bits
N/A 1417 125880 13880 bits
0001010001 1417 125880 520 bits
30 0001001000 1417 121590 2240 bits
N/A 1417 120540 3320 bits
0001001000 1417 121590 840 bits
31 0001010010 1417 129330 1000 bits
N/A 1417 101220 3920 bits
0000101000 1417 102450 1120 bits
32 0000101000 1417 104010 7400 bits
N/A 1417 100920 3800 bits
0000101000 1417 104010 1480 bits
33 0001000011 1417 121170 3840 bits
N/A 1417 117120 9520 bits
0001000011 1417 121170 160 bits
34 0001010001 1417 129330 3840 bits
N/A 1417 86100 11480 bits
0001010001 1417 128610 320 bits
36 0001010111 1417 129360 400 bits
N/A 1417 129360 2640 bits
0001010110 1417 129060 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