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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]

1389 16020

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 3
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 0712 02F15 0715 08F15 0712 2915
Key ccbcc7ed36726dcebd844aea0968c8e0
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 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 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 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2512 11F15 2515 10F15 2512 3612
Key ccbcc7ed36726dcebd844aea0968c8e0
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2712 15F15 2715 08F15 2712 0315
Key ccbcc7ed36726dcebd844aea0968c8e0
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 3012 08F15 3015 02F15 3012 0315
Key ccbcc7ed36726dcebd844aea0968c8e0
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000010110 1389 15990 6720 bits
N/A 1389 14340 5720 bits
0000010110 1389 15690 1560 bits
03 0000010011 1389 15960 10960 bits
N/A 1389 12120 5160 bits
0000010011 1389 12270 200 bits
04 0001100011 1388 597270 7600 bits
N/A 1388 593580 8320 bits
0001100011 1388 594510 680 bits
05 0000001101 1389 8940 400 bits
N/A 1389 8940 2360 bits
0000001101 1389 8940 440 bits
06 0001100110 1388 599250 9480 bits
N/A 1388 595260 5960 bits
0001100110 1388 597690 2040 bits
07 0000011001 1389 15990 440 bits
N/A 1389 15960 6640 bits
0000011001 1389 15690 40 bits
08 0000010011 1389 15990 18520 bits
N/A 1389 12180 4440 bits
0000010011 1389 15690 5080 bits
09 0001110100 1388 603870 280 bits
N/A 1388 603840 10120 bits
0001110100 1388 603870 280 bits
10 0000010101 1389 15990 6760 bits
N/A 1389 13320 200 bits
0000010101 1389 15090 1160 bits
11 0000010101 1389 15990 1160 bits
N/A 1388 592080 11040 bits
0000010101 1389 15690 400 bits
12 0000010110 1389 14370 40 bits
N/A 1389 13320 880 bits
0000010101 1389 13290 40 bits
13 0000001001 1389 10530 19640 bits
N/A 1389 6540 1560 bits
0000001001 1389 10530 5920 bits
14 - - -
- - -
- - -
15 0000001000 1389 5520 80 bits
N/A 1389 5520 600 bits
0000001000 1389 5520 80 bits
16 0000010001 1389 12060 1760 bits
N/A 1389 10860 4920 bits
0000010001 1389 11910 400 bits
18 - - -
- - -
- - -
19 0001010011 1388 586230 1960 bits
N/A 1388 584340 7200 bits
0001010011 1388 584370 680 bits
21 0001011001 1388 591690 7760 bits
N/A 1388 553800 13280 bits
0001011001 1388 591690 1280 bits
23 0001101001 1388 601170 9920 bits
N/A 1388 597180 1600 bits
0001101001 1388 601170 2560 bits
25 0000011001 1389 15990 440 bits
N/A 1389 15960 4040 bits
0000011001 1389 15690 40 bits
26 0000010001 1389 13560 7960 bits
N/A 1389 11100 5920 bits
0000010001 1389 12270 1400 bits
27 0000011001 1389 15990 440 bits
N/A 1389 15960 480 bits
0000011001 1389 15690 40 bits
28 - - -
- - -
- - -
29 0000011000 1389 15990 1600 bits
N/A 1389 15060 360 bits
0000011000 1389 15090 40 bits
30 0000011001 1389 15990 440 bits
N/A 1389 15960 5520 bits
0000011001 1389 15690 40 bits
31 0000000010 1389 5850 6160 bits
N/A 1389 1860 800 bits
0000000010 1389 3030 600 bits
32 - - -
- - -
- - -
33 0000010010 1389 14520 9120 bits
N/A 1389 11520 1840 bits
0000010010 1389 14490 1760 bits
34 0000000000 1389 810 200 bits
N/A 1389 780 80 bits
0000000000 1389 780 160 bits
36 0001101001 1388 601230 9040 bits
N/A 1388 597240 10400 bits
0001101001 1388 601110 1960 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