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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 21690

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 5
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 0201 07F15 1115 0201 3015 1115
Key 901e2640ed7b82f85d02d2899c6e7ad5
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 7
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1201 33F15 1015 1201 1915 1015
Key 901e2640ed7b82f85d02d2899c6e7ad5
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 2601 04F15 3315 2601 2315 3315
Key 901e2640ed7b82f85d02d2899c6e7ad5
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2801 10F15 0415 2801 1915 0415
Key 901e2640ed7b82f85d02d2899c6e7ad5
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2901 10F15 3315 2901 1915 3315
Key 901e2640ed7b82f85d02d2899c6e7ad5
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 Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000100010 1420 21660 800 bits
N/A 1420 21660 1400 bits
0000100010 1420 21360 400 bits
03 0000001011 1420 7770 680 bits
N/A 1420 7740 4560 bits
0000001011 1420 7740 640 bits
04 0000011111 1420 21660 1840 bits
N/A 1419 593760 3760 bits
0000011111 1420 21330 400 bits
05 0001110100 1420 2700 10080 bits
N/A 1419 603720 3600 bits
0001110100 1420 2190 440 bits
06 0001100111 1419 595890 40 bits
N/A 1419 595800 1680 bits
0001100110 1419 595830 520 bits
07 0000100001 1420 21660 1560 bits
N/A 1420 20520 10040 bits
0000100001 1420 20850 240 bits
08 0000010110 1420 17550 6680 bits
N/A 1420 13860 3000 bits
0000010110 1420 17550 720 bits
09 0001101011 1419 598860 160 bits
N/A 1419 598440 1440 bits
0001101011 1419 598470 200 bits
10 0000100001 1420 21660 2440 bits
N/A 1420 20580 1960 bits
0000100001 1420 21330 600 bits
11 0000100001 1420 21660 1960 bits
N/A 1420 20520 40 bits
0000100001 1420 21330 440 bits
12 0000100010 1420 21660 800 bits
N/A 1420 21660 4680 bits
0000100010 1420 21360 400 bits
13 0000010110 1420 15030 2720 bits
N/A 1420 13920 3240 bits
0000010110 1420 13950 120 bits
14 - - -
- - -
- - -
15 0000000110 1420 4650 520 bits
N/A 1420 4620 2480 bits
0000000110 1420 4620 480 bits
16 0000010101 1420 17280 7800 bits
N/A 1420 13320 2240 bits
0000010101 1420 15510 1320 bits
18 - - -
- - -
- - -
19 0000011111 1420 21660 8560 bits
N/A 1420 19620 1800 bits
0000011111 1420 20550 1320 bits
21 0000000110 1420 8310 15240 bits
N/A 1420 4440 2400 bits
0000000110 1420 8250 3600 bits
23 0000001100 1420 12210 6960 bits
N/A 1420 8280 4560 bits
0000001100 1420 8310 600 bits
25 0000011011 1420 20790 7920 bits
N/A 1420 17280 1000 bits
0000011011 1420 20550 2160 bits
26 0000100010 1420 21660 800 bits
N/A 1420 21660 9000 bits
0000100010 1420 21360 400 bits
27 0001110101 1420 990 4320 bits
N/A 1419 604680 11520 bits
0001110101 1420 930 1000 bits
28 0000100010 1420 21660 800 bits
N/A 1420 21660 1720 bits
0000100010 1420 21360 400 bits
29 0000100010 1420 21660 800 bits
N/A 1420 21660 5080 bits
0000100010 1420 21360 400 bits
30 0000011110 1420 21660 2560 bits
N/A 1419 595920 9080 bits
0000011110 1420 20550 560 bits
31 0000010101 1420 13830 760 bits
N/A 1420 13800 5440 bits
0000010101 1420 13830 760 bits
32 0000001100 1420 12270 9840 bits
N/A 1420 8280 2440 bits
0000001100 1420 10290 2120 bits
33 0000100001 1420 21660 4120 bits
N/A 1420 20580 4680 bits
0000100001 1420 21330 1040 bits
34 0001101101 1419 599730 360 bits
N/A 1419 599640 7920 bits
0001101101 1419 599730 320 bits
36 0001011100 1419 592680 7160 bits
N/A 1419 589320 3760 bits
0001011100 1419 592530 1200 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