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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 392850

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 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 0413 21F15 2815 0413 0615 2815
Key 9c9602bfe24fe8c49b481f417ce207c6
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 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1515 21F15 2715 1515 3413 2715
Key 9c9602bfe24fe8c49b481f417ce207c6
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 27
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2913 23F15 1915 2913 3315 1915
Key 9c9602bfe24fe8c49b481f417ce207c6
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3112 33F15 1215 3112 1015 1215
Key 9c9602bfe24fe8c49b481f417ce207c6
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001111001 1420 379230 680 bits
N/A 1420 378060 6240 bits
0001111001 1420 378090 40 bits
03 0001100001 1420 366210 5840 bits
N/A 1420 364020 7920 bits
0001100001 1420 366210 2680 bits
04 0000010010 1420 392820 480 bits
N/A 1420 392820 1440 bits
0000010010 1420 392520 80 bits
05 0001010110 1420 357150 120 bits
N/A 1420 357120 3240 bits
0001010110 1420 357150 120 bits
06 0000001101 1420 392820 7640 bits
N/A 1420 389940 920 bits
0000001101 1420 389970 480 bits
07 0000000000 1420 385410 11240 bits
N/A 1420 382020 11880 bits
0000000000 1420 383550 3160 bits
08 0001110100 1420 375300 320 bits
N/A 1420 375300 8120 bits
0001110100 1420 375330 360 bits
09 0000001110 1420 392730 3120 bits
N/A 1420 390540 1120 bits
0000001110 1420 391650 920 bits
10 0000000111 1420 388320 4040 bits
N/A 1420 386100 4400 bits
0000000111 1420 387270 840 bits
11 0000001011 1420 389940 1000 bits
N/A 1420 388320 2440 bits
0000001011 1420 388350 120 bits
12 0000001000 1420 389070 1480 bits
N/A 1420 386580 1840 bits
0000001000 1420 386610 200 bits
13 0001101110 1420 371730 360 bits
N/A 1420 371700 9520 bits
0001101110 1420 371700 320 bits
14 - - -
- - -
- - -
15 0000001100 1420 392730 1240 bits
N/A 1420 364140 4680 bits
0000001100 1420 392490 280 bits
16 0001100000 1420 366030 7440 bits
N/A 1420 363120 1800 bits
0001100000 1420 363150 120 bits
18 - - -
- - -
- - -
19 0000001101 1420 392820 10480 bits
N/A 1420 389760 6960 bits
0000001101 1420 392490 4000 bits
21 0000010001 1420 392790 1320 bits
N/A 1420 392160 1000 bits
0000010001 1420 392190 440 bits
23 0000010001 1420 392820 1520 bits
N/A 1420 392280 800 bits
0000010001 1420 392310 600 bits
25 0001101010 1420 372210 4200 bits
N/A 1420 369540 1520 bits
0001101010 1420 369570 680 bits
26 0001111000 1420 378210 520 bits
N/A 1420 377580 11280 bits
0001111000 1420 377610 200 bits
27 0000001100 1420 392730 7480 bits
N/A 1420 388860 5680 bits
0000001100 1420 392430 2160 bits
28 0000001101 1420 392820 10520 bits
N/A 1420 389940 3640 bits
0000001101 1420 392490 2720 bits
29 0000010010 1420 392820 480 bits
N/A 1420 392820 1440 bits
0000010010 1420 392520 80 bits
30 0000000110 1420 388530 4000 bits
N/A 1420 385380 4120 bits
0000000110 1420 388530 920 bits
31 0000010010 1420 392820 440 bits
N/A 1420 392820 200 bits
0000010010 1420 392520 40 bits
32 0001101100 1420 373770 11400 bits
N/A 1420 370500 5520 bits
0001101100 1420 373650 4320 bits
33 0000000001 1420 382860 800 bits
N/A 1420 382860 6000 bits
0000000001 1420 382860 800 bits
34 0000010010 1420 392730 360 bits
N/A 1420 392700 200 bits
0000010010 1420 392520 80 bits
36 0000010001 1420 392700 360 bits
N/A 1420 391560 520 bits
0000010000 1420 391740 560 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