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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]

1409 220110

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 11
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 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0515 32F15 1615 0515 0315 1615
Key 514f0ff697e7cb741f962e635568d25d
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0815 26F15 3215 0815 1515 3215
Key 514f0ff697e7cb741f962e635568d25d
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1315 15F15 3215 1315 0315 3215
Key 514f0ff697e7cb741f962e635568d25d
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2515 36F15 1615 2515 0315 1615
Key 514f0ff697e7cb741f962e635568d25d
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3115 03F15 2615 3115 2315 2615
Key 514f0ff697e7cb741f962e635568d25d
SVID 32
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

Authenticated Data

02 0001010001 1409 201690 40 bits
N/A 1409 201660 8840 bits
0001010001 1409 201690 40 bits
03 0001101110 1409 220080 4040 bits
N/A 1409 219540 1120 bits
0001101110 1409 219750 1040 bits
04 0001011001 1409 206880 520 bits
N/A 1409 206880 6720 bits
0001011001 1409 206880 560 bits
05 0001101111 1409 220080 560 bits
N/A 1409 220080 1320 bits
0001101111 1409 219780 160 bits
06 0001100000 1409 211170 680 bits
N/A 1409 211140 6800 bits
0001100000 1409 211140 640 bits
07 0000110100 1409 185970 4960 bits
N/A 1409 184320 2600 bits
0000110100 1409 185970 520 bits
08 0001101111 1409 220080 560 bits
N/A 1409 220080 1480 bits
0001101111 1409 219780 160 bits
09 0001100111 1409 219150 7720 bits
N/A 1409 215280 10440 bits
0001100111 1409 219030 1520 bits
10 0001001111 1409 200700 320 bits
N/A 1409 200700 11000 bits
0001001111 1409 200700 320 bits
11 0001010111 1409 205770 480 bits
N/A 1409 205740 6160 bits
0001010111 1409 205770 440 bits
12 0001000010 1409 196890 11120 bits
N/A 1409 192840 5040 bits
0001000010 1409 196890 360 bits
13 0001101111 1409 220080 560 bits
N/A 1409 220080 1160 bits
0001101111 1409 219780 160 bits
14 - - -
- - -
- - -
15 0001101010 1409 220080 13800 bits
N/A 1409 216660 7440 bits
0001101010 1409 217290 440 bits
16 0001101111 1409 220080 640 bits
N/A 1409 220020 1080 bits
0001101111 1409 219780 160 bits
18 - - -
- - -
- - -
19 0001001011 1409 201690 5960 bits
N/A 1409 198240 4280 bits
0001001011 1409 198990 760 bits
21 0001011110 1409 209520 40 bits
N/A 1409 209100 800 bits
0001011101 1409 209430 400 bits
23 0001100001 1409 215490 11560 bits
N/A 1409 211500 3600 bits
0001100001 1409 215490 1600 bits
25 0001101111 1409 220080 560 bits
N/A 1409 220080 640 bits
0001101111 1409 219780 160 bits
26 0001101100 1409 220080 4160 bits
N/A 1409 177180 1000 bits
0001101100 1409 219750 480 bits
27 0001010101 1409 207870 7440 bits
N/A 1409 204120 4880 bits
0001010101 1409 207870 3080 bits
28 0001010011 1409 202890 40 bits
N/A 1409 202860 3680 bits
0001010010 1409 202860 760 bits
29 0000111110 1409 194460 6880 bits
N/A 1409 190680 3160 bits
0000111110 1409 190710 600 bits
30 0001010110 1409 204960 400 bits
N/A 1409 204900 2760 bits
0001010110 1409 204930 360 bits
31 0001101111 1409 220080 560 bits
N/A 1409 220080 1480 bits
0001101111 1409 219780 160 bits
32 0001101010 1409 220080 16280 bits
N/A 1409 216660 4560 bits
0001101010 1409 219750 5280 bits
33 0000110110 1409 185790 440 bits
N/A 1409 185760 1840 bits
0000110110 1409 185790 440 bits
34 0001101100 1409 220080 3200 bits
N/A 1409 218280 280 bits
0001101100 1409 219570 800 bits
36 0001100001 1409 215070 5840 bits
N/A 1409 211320 8600 bits
0001100001 1409 211350 120 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