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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]

1400 321000

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 5
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 0615 11F15 0615 09F15 0615 0415
Key f3b4dec60d9e99a335592ca64f5b57ae
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 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 29F15 1915 23F15 1915 0415
Key f3b4dec60d9e99a335592ca64f5b57ae
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 29F15 2115 23F15 2115 0415
Key f3b4dec60d9e99a335592ca64f5b57ae
SVID 23
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 2715 29F15 2715 36F15 2715 0415
Key f3b4dec60d9e99a335592ca64f5b57ae
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2815 04F15 2815 11F15 2815 3615
Key f3b4dec60d9e99a335592ca64f5b57ae
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 0000001000 1400 312930 4440 bits
N/A 1400 265500 3240 bits
0000001000 1400 311190 200 bits
03 0001101011 1400 295050 5560 bits
N/A 1400 293100 3400 bits
0001101011 1400 294990 880 bits
04 0000010111 1400 320970 6320 bits
N/A 1400 319560 2400 bits
0000010111 1400 320670 1080 bits
05 0001100000 1400 288750 4720 bits
N/A 1400 283680 1080 bits
0001100000 1400 287490 160 bits
06 0000011001 1400 320970 680 bits
N/A 1400 320940 3120 bits
0000011001 1400 320670 280 bits
07 0001111101 1400 310710 7560 bits
N/A 1400 304740 320 bits
0001111101 1400 310710 2160 bits
08 0001111000 1400 301770 680 bits
N/A 1400 301740 6440 bits
0001111000 1400 301770 680 bits
09 0000010110 1400 320970 3560 bits
N/A 1400 318780 2400 bits
0000010110 1400 318810 200 bits
10 0000010110 1400 320880 4840 bits
N/A 1400 318960 4640 bits
0000010110 1400 320670 1560 bits
11 0000010100 1400 320970 15000 bits
N/A 1400 317520 4080 bits
0000010100 1400 320670 3520 bits
12 0000011001 1400 320880 480 bits
N/A 1400 320880 3080 bits
0000011001 1400 320670 280 bits
13 0001110100 1400 299370 600 bits
N/A 1400 299280 7160 bits
0001110100 1400 299280 560 bits
14 - - -
- - -
- - -
15 0001100011 1400 292890 9000 bits
N/A 1400 288540 9400 bits
0001100011 1400 292770 1400 bits
16 0001111101 1400 308310 7040 bits
N/A 1400 304320 40 bits
0001111101 1400 305970 560 bits
18 - - -
- - -
- - -
19 0000011001 1400 320970 680 bits
N/A 1400 320940 6840 bits
0000011001 1400 320670 280 bits
21 0000011001 1400 320970 680 bits
N/A 1400 320940 2840 bits
0000011001 1400 320670 280 bits
23 0000010101 1400 320970 6120 bits
N/A 1400 299400 12480 bits
0000010101 1400 319470 200 bits
25 0000000011 1400 310830 3320 bits
N/A 1400 307200 1760 bits
0000000010 1400 307230 760 bits
26 0000000101 1400 308730 360 bits
N/A 1400 308700 2720 bits
0000000101 1400 308730 360 bits
27 0000011001 1400 320970 680 bits
N/A 1400 320940 1320 bits
0000011001 1400 320670 280 bits
28 0000011001 1400 320970 680 bits
N/A 1400 320940 4920 bits
0000011001 1400 320670 280 bits
29 0000010110 1400 319200 520 bits
N/A 1400 319140 4760 bits
0000010110 1400 319170 520 bits
30 0000010000 1400 318210 3160 bits
N/A 1400 315000 1560 bits
0000010000 1400 318090 1280 bits
31 0001111011 1400 303480 560 bits
N/A 1400 303480 9080 bits
0001111011 1400 303480 560 bits
32 - - -
- - -
- - -
33 0000010010 1400 316410 200 bits
N/A 1400 316380 4200 bits
0000010010 1400 316350 120 bits
34 0001010101 1400 280290 40 bits
N/A 1400 280260 7080 bits
0001010101 1400 280290 40 bits
36 0000010101 1400 320970 4640 bits
N/A 1400 318060 1240 bits
0000010101 1400 318090 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