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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]

1406 203880

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 8
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 0514 03F15 0515 09F15 0514 0614
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 8
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 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 08F15 1400 03F15 1400 1315
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1514 03F15 1515 13F15 1514 0815
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2314 13F15 2315 21F15 2314 0915
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2614 21F15 2615 13F15 2614 1915
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2714 21F15 2715 08F15 2714 1315
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3214 08F15 3215 03F15 3214 1315
Key 896a40d52e349964cb2f5e7d3e1a4c45
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3414 03F15 3415 08F15 3414 2515
Key 896a40d52e349964cb2f5e7d3e1a4c45

Authenticated Data

02 0001000011 1406 193500 320 bits
N/A 1406 193500 11880 bits
0001000011 1406 193500 320 bits
03 0001001110 1406 203850 16480 bits
N/A 1406 200100 5120 bits
0001001110 1406 203550 3760 bits
04 0001000011 1406 193620 480 bits
N/A 1406 193620 2280 bits
0001000011 1406 193590 440 bits
05 0001010100 1406 203850 520 bits
N/A 1406 203820 5440 bits
0001010100 1406 203550 120 bits
06 0001001001 1406 197130 360 bits
N/A 1406 197100 4760 bits
0001001001 1406 197130 360 bits
07 0000110000 1406 182190 80 bits
N/A 1406 182160 1400 bits
0000110000 1406 182160 40 bits
08 0001010011 1406 203850 4800 bits
N/A 1406 202920 3640 bits
0001010011 1406 203550 920 bits
09 0001001111 1406 200850 520 bits
N/A 1406 200820 6480 bits
0001001111 1406 200850 520 bits
10 0000110010 1406 183120 80 bits
N/A 1406 183060 2320 bits
0000110010 1406 183090 40 bits
11 0000110101 1406 188790 11400 bits
N/A 1406 184800 5520 bits
0000110101 1406 188790 880 bits
12 0000101010 1406 181950 8600 bits
N/A 1406 178320 3240 bits
0000101010 1406 181170 160 bits
13 0001001111 1406 203850 14680 bits
N/A 1406 200460 5200 bits
0001001111 1406 203550 2840 bits
14 - - -
- - -
- - -
15 0001010100 1406 203850 520 bits
N/A 1406 203820 9600 bits
0001010100 1406 203550 120 bits
16 0000100011 1406 178320 12800 bits
N/A 1406 174360 600 bits
0000100011 1406 174390 440 bits
18 - - -
- - -
- - -
19 0000101110 1406 185010 7680 bits
- - -
0000101110 1406 181950 200 bits
21 0001010011 1406 203850 5080 bits
N/A 1406 202860 4360 bits
0001010011 1406 203550 760 bits
23 0001010100 1406 203850 520 bits
N/A 1406 203820 2920 bits
0001010100 1406 203550 120 bits
25 0000110011 1406 188010 5800 bits
N/A 1406 183960 2720 bits
0000110011 1406 183990 440 bits
26 0001010100 1406 203850 520 bits
N/A 1406 203820 800 bits
0001010100 1406 203550 120 bits
27 0001010100 1406 203850 520 bits
N/A 1406 203820 6080 bits
0001010100 1406 203550 120 bits
28 0000111011 1406 192570 12960 bits
N/A 1406 188580 2520 bits
0000111011 1406 192390 1600 bits
29 0000110100 1406 184620 440 bits
N/A 1406 184560 2560 bits
0000110100 1406 184590 360 bits
30 0001001000 1406 200250 18120 bits
N/A 1406 196260 13520 bits
0001001000 1406 200250 2160 bits
31 0000010100 1406 169290 15840 bits
N/A 1406 165540 6160 bits
0000010100 1406 169050 3920 bits
32 0001010100 1406 203850 520 bits
N/A 1406 203820 6160 bits
0001010100 1406 203550 120 bits
33 0000011011 1406 173250 9320 bits
N/A 1406 169260 4600 bits
0000011011 1406 172230 1440 bits
34 0001010100 1406 203850 520 bits
N/A 1406 203820 9680 bits
0001010100 1406 203550 120 bits
36 0001001000 1406 196860 800 bits
N/A 1406 196860 8720 bits
0001001001 1406 196890 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