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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]

1374 135270

Authenticated NMA Status
NMAS OPERATIONAL CID 0 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 10
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 21 23 25 26 27 29 30 31 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 29 30 31 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 13
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 1507 36F15 3015 1507 3415 3015
Key 95bd837c4d9b6817e3a9f0a809df2bc5
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1907 13F15 2315 1907 0415 2315
Key 95bd837c4d9b6817e3a9f0a809df2bc5
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2107 34F15 0415 2107 2315 0415
Key 95bd837c4d9b6817e3a9f0a809df2bc5
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 2707 04F15 3415 2707 3015 3415
Key 95bd837c4d9b6817e3a9f0a809df2bc5
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2907 12F15 1315 2907 2315 1315
Key 95bd837c4d9b6817e3a9f0a809df2bc5
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001010001 1374 125670 240 bits
N/A 1374 125640 10640 bits
0001010001 1374 125640 240 bits
03 0000111011 1374 115350 10240 bits
N/A 1374 112740 11440 bits
0000111011 1374 115230 1360 bits
04 0001100000 1374 135240 2680 bits
N/A 1374 134520 280 bits
0001100000 1374 134910 400 bits
05 0000101110 1374 104880 560 bits
N/A 1374 104880 6400 bits
0000101110 1374 104850 520 bits
06 0001011111 1374 135240 3160 bits
N/A 1374 134100 240 bits
0001011111 1374 134550 640 bits
07 0001011011 1374 131790 400 bits
N/A 1374 131700 120 bits
0001011011 1374 131790 400 bits
08 0001001110 1374 124050 520 bits
N/A 1374 124020 18440 bits
0001001110 1374 124050 520 bits
09 0000011111 1374 95490 40 bits
N/A 1374 95460 4120 bits
0000011110 1374 95460 800 bits
10 0001001101 1374 126420 7120 bits
N/A 1374 123180 2280 bits
0001001101 1374 126030 1040 bits
11 0001001101 1374 127020 5160 bits
N/A 1374 83520 10800 bits
0001001101 1374 124770 600 bits
12 0001001111 1374 128070 6680 bits
N/A 1374 124260 1880 bits
0001001111 1374 124950 440 bits
13 0001011011 1374 135240 4400 bits
N/A 1374 114540 11760 bits
0001011011 1374 134910 120 bits
14 - - -
- - -
- - -
15 0001100001 1374 135240 240 bits
N/A 1374 135240 2520 bits
0001100000 1374 134940 640 bits
16 0000111101 1374 113490 40 bits
N/A 1374 113460 5400 bits
0000111101 1374 113490 40 bits
18 - - -
- - -
- - -
19 0001100001 1374 135240 240 bits
N/A 1374 135240 2520 bits
0001100000 1374 134940 640 bits
21 0001100001 1374 135240 240 bits
N/A 1374 135240 2520 bits
0001100000 1374 134940 640 bits
23 0001100000 1374 135240 2520 bits
N/A 1374 134580 2080 bits
0001100000 1374 134910 400 bits
25 0000111111 1374 117870 9160 bits
N/A 1374 114600 3240 bits
0000111111 1374 115230 200 bits
26 0001000101 1374 118680 560 bits
N/A 1374 118620 6720 bits
0001000101 1374 118650 520 bits
27 0001100001 1374 135240 240 bits
N/A 1374 135240 2520 bits
0001100000 1374 134940 640 bits
29 0001100001 1374 135240 240 bits
N/A 1374 135240 760 bits
0001100000 1374 134940 200 bits
30 0001011011 1374 135240 13240 bits
N/A 1374 131820 240 bits
0001011011 1374 134910 4480 bits
31 0000101000 1374 103350 11560 bits
N/A 1374 100260 1840 bits
0000101000 1374 103350 2160 bits
33 0001001010 1374 121680 560 bits
N/A 1374 121680 6240 bits
0001001010 1374 121680 560 bits
34 0001011111 1374 135240 4800 bits
N/A 1374 133920 640 bits
0001011111 1374 134910 760 bits
36 0001011101 1374 135210 6240 bits
N/A 1374 131220 6520 bits
0001011010 1374 131220 400 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.

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