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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]

1407 296430

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 12
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 3
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 0415 36F15 2815 0415 0615 2815
Key c681759e81ffe7a68057a5b1daae8ea4
SVID 5
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 34F15 3615 0915 0615 3615
Key c681759e81ffe7a68057a5b1daae8ea4
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 36F15 1015 1115 0915 1015
Key c681759e81ffe7a68057a5b1daae8ea4
SVID 14
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 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 0001101011 1407 293910 600 bits
N/A 1407 293880 7000 bits
0001101011 1407 293910 600 bits
03 0001000000 1407 270750 9840 bits
N/A 1407 267900 3040 bits
0001000000 1407 270630 3960 bits
04 0001101111 1407 296400 720 bits
N/A 1407 296400 5280 bits
0001101111 1407 296100 320 bits
05 0001101101 1407 296370 2760 bits
N/A 1407 294600 2840 bits
0001101100 1407 294630 760 bits
06 0001101110 1407 296400 2640 bits
N/A 1407 295740 7120 bits
0001101110 1407 295770 680 bits
07 0001010011 1407 279540 600 bits
N/A 1407 279480 3680 bits
0001010011 1407 279510 600 bits
08 0001001001 1407 273390 400 bits
N/A 1407 273360 4040 bits
0001001001 1407 273390 360 bits
09 0001101001 1407 296400 18040 bits
N/A 1407 292440 3240 bits
0001101001 1407 296070 5920 bits
10 0001101011 1407 296400 7520 bits
N/A 1407 293400 10160 bits
0001101011 1407 296070 520 bits
11 0001101111 1407 296400 720 bits
N/A 1407 296400 10720 bits
0001101111 1407 296100 320 bits
12 0001101001 1407 295950 3960 bits
N/A 1407 292620 7200 bits
0001101001 1407 293430 1000 bits
13 0000111100 1407 265290 40 bits
N/A 1407 265260 2400 bits
0000111011 1407 265260 800 bits
14 - - -
- - -
- - -
15 0000101010 1407 257880 7960 bits
N/A 1407 254640 6360 bits
0000101010 1407 256170 1200 bits
16 0001011110 1407 285720 80 bits
N/A 1407 285720 6920 bits
0001011110 1407 285720 80 bits
18 - - -
- - -
- - -
19 0001101100 1407 294360 400 bits
N/A 1407 294360 5400 bits
0001101100 1407 294360 400 bits
21 0000111000 1407 263040 240 bits
N/A 1407 263040 200 bits
0000111000 1407 263040 240 bits
23 0001000111 1407 271980 40 bits
N/A 1407 271980 2520 bits
0001000001 1407 271950 720 bits
25 0001100101 1407 290280 560 bits
N/A 1407 290280 8560 bits
0001100101 1407 290250 520 bits
26 0001000100 1407 274530 9800 bits
N/A 1407 270540 3680 bits
0001000100 1407 274530 2440 bits
27 0001101110 1407 295650 520 bits
N/A 1407 295620 1640 bits
0001101110 1407 295650 520 bits
28 0001101001 1407 296400 7720 bits
N/A 1407 292500 4600 bits
0001101001 1407 296070 1600 bits
29 0001011101 1407 289140 7600 bits
N/A 1407 285060 5480 bits
0001011101 1407 287490 1400 bits
30 0001101001 1407 296340 10720 bits
N/A 1407 292620 4960 bits
0001101001 1407 294030 2560 bits
31 0001010000 1407 281460 9200 bits
N/A 1407 277680 3920 bits
0001010000 1407 279270 1440 bits
32 0001000101 1407 270720 80 bits
N/A 1407 270660 2760 bits
0001000100 1407 270660 760 bits
33 0001011001 1407 285450 5960 bits
N/A 1407 283080 10800 bits
0001011001 1407 283110 600 bits
34 0001101010 1407 296370 10920 bits
N/A 1407 293220 1920 bits
0001101010 1407 296070 3640 bits
36 0001101111 1407 296370 720 bits
N/A 1407 296280 4080 bits
0001101111 1407 296100 320 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