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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]

1396 151290

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 14
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 1
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 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 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 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 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2101 12F01 2915 2101 2715 2915
Key b19ea3add3852d422ba66c864aded6cc
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
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 0001110001 1396 147480 2200 bits
N/A 1396 100740 5680 bits
0000100111 1396 104070 5200 bits
03 0001010100 1396 127680 480 bits
N/A 1396 127620 3760 bits
0001010101 1396 128040 40 bits
04 0001111010 1396 150840 1880 bits
N/A 1396 147720 2760 bits
0001111010 1396 150270 160 bits
05 0001001000 1396 123990 9760 bits
N/A 1396 119040 2080 bits
0001001000 1396 123750 920 bits
06 0001111011 1396 150840 240 bits
N/A 1396 150840 760 bits
0001111011 1396 150840 240 bits
07 0001110000 1396 144660 40 bits
N/A 1396 143520 3680 bits
0001101111 1396 143550 120 bits
08 0001100000 1396 136410 1480 bits
N/A 1396 134880 680 bits
0001100000 1396 134910 600 bits
09 0001111011 1396 150840 240 bits
N/A 1396 115080 440 bits
0001111011 1396 150810 120 bits
10 0001111010 1396 150300 320 bits
N/A 1396 150300 6600 bits
0001111010 1396 150300 320 bits
11 0001111000 1396 149460 800 bits
N/A 1396 149460 1880 bits
0001111000 1396 149460 800 bits
12 0001111011 1396 151230 760 bits
N/A 1396 146400 5560 bits
0001110100 1396 149610 920 bits
13 0001011110 1396 133860 160 bits
N/A 1396 133860 1240 bits
0001011110 1396 133830 160 bits
14 - - -
- - -
- - -
15 0001001011 1396 124320 6040 bits
N/A 1396 122220 8840 bits
0001001011 1396 124290 3000 bits
16 0001101000 1396 142530 6400 bits
N/A 1396 139560 2680 bits
0001101000 1396 139590 440 bits
18 - - -
- - -
- - -
19 0001111000 1396 149460 920 bits
N/A 1396 149460 4640 bits
0001111000 1396 149460 320 bits
21 0001111011 1396 151260 800 bits
N/A 1396 151260 1160 bits
0001111011 1396 150960 400 bits
23 0001011111 1396 133920 80 bits
N/A 1396 133920 1560 bits
0001011110 1396 133860 800 bits
25 0001101001 1396 143490 8560 bits
N/A 1396 140040 840 bits
0001101001 1396 140910 1080 bits
26 0001101110 1396 143220 480 bits
N/A 1396 143220 6600 bits
0001101110 1396 143220 480 bits
27 0001110110 1396 151260 2520 bits
N/A 1396 148020 80 bits
0001110110 1396 148050 200 bits
28 0001111011 1396 151260 640 bits
N/A 1396 147360 1200 bits
0001110101 1396 149910 2000 bits
29 0001111000 1396 151260 2480 bits
N/A 1396 147480 5200 bits
0001111000 1396 150930 960 bits
30 0001110101 1396 148050 760 bits
N/A 1396 149460 360 bits
0001110101 1396 149460 320 bits
31 0001100101 1396 138060 760 bits
N/A 1396 138000 2320 bits
0001100101 1396 138030 760 bits
32 - - -
- - -
- - -
33 0001111011 1396 150870 280 bits
N/A 1396 150780 5400 bits
0001111011 1396 150870 280 bits
34 0000111010 1396 115590 6920 bits
N/A 1396 111600 8640 bits
0000111010 1396 115590 800 bits
36 0001110011 1396 149460 360 bits
N/A 1396 106260 3920 bits
0000110001 1396 106290 40 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