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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]

1405 280800

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 0215 36F15 0215 34F15 0215 1515
Key 7119246af5049a0e97666a0218c37dea
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 0915 06F15 0915 04F15 0915 0515
Key 7119246af5049a0e97666a0218c37dea
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 1115 10F15 1115 28F15 1115 0415
Key 7119246af5049a0e97666a0218c37dea
SVID 12
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 1915 28F15 1915 10F15 1915 1215
Key 7119246af5049a0e97666a0218c37dea
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2515 05F15 2515 36F15 2515 3415
Key 7119246af5049a0e97666a0218c37dea
SVID 28
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 3015 27F15 3015 36F15 3015 0715
Key 7119246af5049a0e97666a0218c37dea
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 Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001010101 1405 280770 680 bits
N/A 1405 280740 4680 bits
0001010101 1405 280470 280 bits
03 0001000010 1405 269190 440 bits
N/A 1405 269160 5680 bits
0001000010 1405 269190 440 bits
04 0001010000 1405 280770 2520 bits
N/A 1405 253320 11080 bits
0001010000 1405 277590 80 bits
05 0000111101 1405 266010 200 bits
N/A 1405 265980 4080 bits
0000111101 1405 266010 200 bits
06 0001010010 1405 280770 1160 bits
N/A 1405 258660 7320 bits
0000110001 1405 258750 80 bits
07 0001001010 1405 273750 80 bits
N/A 1405 273660 1040 bits
0001001010 1405 273750 80 bits
08 0001000011 1405 273750 6320 bits
N/A 1405 269880 2200 bits
0001000011 1405 272130 2200 bits
09 0001010101 1405 280770 80 bits
N/A 1405 280740 40 bits
0000110001 1405 262350 1160 bits
10 0001010001 1405 280770 7600 bits
N/A 1405 278340 9080 bits
0001010001 1405 280470 2000 bits
11 0001010101 1405 280770 680 bits
N/A 1405 280740 6680 bits
0001010101 1405 280470 280 bits
12 0001010001 1405 280770 4160 bits
N/A 1405 278280 6400 bits
0001010001 1405 279930 1640 bits
13 0000101101 1405 256650 400 bits
N/A 1405 256620 2120 bits
0000101101 1405 256650 400 bits
14 - - -
- - -
- - -
15 0000011100 1405 250380 6400 bits
N/A 1405 246360 320 bits
0000011100 1405 250230 2520 bits
16 0001010001 1405 279150 1800 bits
N/A 1405 278220 2920 bits
0001010001 1405 278370 600 bits
18 - - -
- - -
- - -
19 0001010101 1405 280770 680 bits
N/A 1405 280740 1520 bits
0001010101 1405 280470 280 bits
21 0000100001 1405 252600 8880 bits
N/A 1405 249480 7920 bits
0000100001 1405 252150 3920 bits
23 0000110100 1405 260520 80 bits
N/A 1405 260460 240 bits
0000110100 1405 260490 40 bits
25 0001010101 1405 280770 680 bits
N/A 1405 280740 7880 bits
0001010101 1405 280470 280 bits
26 0000111001 1405 264990 2760 bits
N/A 1405 263400 2280 bits
0000111001 1405 263730 120 bits
27 0000001110 1405 242070 4800 bits
N/A 1405 238080 6200 bits
0000001110 1405 241410 1480 bits
28 0001010000 1405 280770 6960 bits
N/A 1405 277560 760 bits
0001010000 1405 280470 800 bits
29 0001010000 1405 280470 6640 bits
N/A 1405 277260 800 bits
0001010000 1405 280290 1840 bits
30 0001010101 1405 280770 680 bits
N/A 1405 280740 2080 bits
0001010101 1405 280470 280 bits
31 0000111111 1405 270030 2920 bits
N/A 1405 267420 2280 bits
0000111111 1405 267450 480 bits
32 0001000100 1405 270660 680 bits
N/A 1405 270660 2560 bits
0001000100 1405 270630 640 bits
33 0001000011 1405 273030 2400 bits
N/A 1405 269400 1040 bits
0001000011 1405 272850 440 bits
34 0001010000 1405 280770 8080 bits
N/A 1405 277500 520 bits
0001010000 1405 277530 360 bits
36 0001010001 1405 280770 11560 bits
N/A 1405 278340 2440 bits
0001010001 1405 280470 3400 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