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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]

1415 423750

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 6
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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1303 19F15 2915 1303 0215 2915
Key 52475ddd751533aea4be07746ea5e45b
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 1503 19F15 3415 1503 0215 3415
Key 52475ddd751533aea4be07746ea5e45b
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 2103 04F15 1915 2103 2815 1915
Key 52475ddd751533aea4be07746ea5e45b
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2703 29F15 3415 2703 1915 3415
Key 52475ddd751533aea4be07746ea5e45b
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3003 06F15 3415 3003 0215 3415
Key 52475ddd751533aea4be07746ea5e45b
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 3603 05F15 0615 3603 0415 0615
Key 52475ddd751533aea4be07746ea5e45b

Authenticated Data

02 0001000101 1415 423720 2240 bits
N/A 1415 423060 12720 bits
0001000101 1415 423090 40 bits
03 0000101110 1415 409680 560 bits
N/A 1415 409680 5320 bits
0000101110 1415 409650 520 bits
04 0001000001 1415 423720 5480 bits
N/A 1415 383580 1480 bits
0001000001 1415 423390 1040 bits
05 0000100010 1415 402420 480 bits
N/A 1415 402420 5160 bits
0000100010 1415 402390 440 bits
06 0000001100 1415 388890 40 bits
N/A 1415 388860 2920 bits
0000001100 1415 388890 40 bits
07 0001000000 1415 420540 640 bits
N/A 1415 420540 12080 bits
0001000000 1415 420540 640 bits
08 0000111000 1415 419370 12000 bits
N/A 1415 415380 6240 bits
0000111000 1415 419370 3840 bits
09 0000010100 1415 393690 40 bits
N/A 1415 393660 920 bits
0000010100 1415 393690 40 bits
10 0000110101 1415 413940 1120 bits
N/A 1415 413940 5600 bits
0000110101 1415 413910 360 bits
11 0000111100 1415 417960 400 bits
N/A 1415 417960 5320 bits
0000111100 1415 417930 360 bits
12 0000110000 1415 410640 240 bits
N/A 1415 410520 3160 bits
0000110000 1415 410640 200 bits
13 0001000110 1415 423720 80 bits
N/A 1415 423720 1200 bits
0001000101 1415 423420 200 bits
14 - - -
- - -
- - -
15 0001000110 1415 423720 80 bits
N/A 1415 423720 6400 bits
0001000101 1415 423420 480 bits
16 0000100110 1415 404520 80 bits
N/A 1415 404520 7040 bits
0000100110 1415 404520 80 bits
18 - - -
- - -
- - -
19 0001000000 1415 423720 12120 bits
N/A 1415 420060 720 bits
0001000000 1415 422070 1000 bits
21 0001000110 1415 423720 80 bits
N/A 1415 423720 160 bits
0000111111 1415 422970 2400 bits
23 0000000001 1415 388110 10440 bits
N/A 1415 382620 640 bits
0000000001 1415 382650 480 bits
25 0000101111 1415 413760 17040 bits
N/A 1415 409800 4680 bits
0000101111 1415 412710 2800 bits
26 0000011110 1415 400170 560 bits
N/A 1415 399660 2120 bits
0000011110 1415 400140 240 bits
27 0001000110 1415 423720 80 bits
N/A 1415 423720 7000 bits
0001000101 1415 423420 480 bits
28 0001000101 1415 423720 960 bits
N/A 1415 423420 2680 bits
0001000101 1415 423420 480 bits
29 0001000010 1415 423720 5960 bits
N/A 1415 421260 5160 bits
0001000010 1415 423390 1560 bits
30 0001000110 1415 423720 80 bits
N/A 1415 423720 8080 bits
0001000101 1415 423420 480 bits
31 0000010110 1415 395310 320 bits
N/A 1415 395280 360 bits
0000010110 1415 395310 320 bits
32 0000101111 1415 413850 19640 bits
N/A 1415 409920 6520 bits
0000101111 1415 413730 3480 bits
33 0000100011 1415 406710 8120 bits
N/A 1415 402660 1560 bits
0000100011 1415 406050 2160 bits
34 0001000100 1415 423720 4600 bits
N/A 1415 422940 8880 bits
0001000100 1415 423390 1520 bits
36 0001000110 1415 423720 80 bits
N/A 1415 423720 8920 bits
0001000101 1415 423420 480 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