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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]

1420 230670

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0707 30F15 0815 0707 2915 0815
Key e785b44aea69953f83a7da416a315cc2
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1107 19F15 1015 1107 0415 1015
Key e785b44aea69953f83a7da416a315cc2
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 10F15 3615 1800 0215 3615
Key e785b44aea69953f83a7da416a315cc2
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
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 19F15 2915 2707 3015 2915
Key e785b44aea69953f83a7da416a315cc2
SVID 29
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 3407 30F15 0215 3407 1515 0215
Key e785b44aea69953f83a7da416a315cc2
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 0001111110 1420 230640 3800 bits
N/A 1420 228660 680 bits
0001111110 1420 230310 960 bits
03 0001110100 1420 222990 440 bits
N/A 1420 222960 1480 bits
0001110100 1420 222990 400 bits
04 0001000110 1420 196230 2320 bits
N/A 1420 195180 7240 bits
0001000110 1420 195690 520 bits
05 0001100100 1420 215910 3760 bits
N/A 1420 213060 11440 bits
0001100100 1420 215250 1400 bits
06 0001001100 1420 203070 8680 bits
N/A 1420 199080 7400 bits
0001001100 1420 203070 2720 bits
07 0000000010 1420 230640 240 bits
N/A 1420 230640 3080 bits
0000000001 1420 230340 640 bits
08 0001111110 1420 230640 3040 bits
N/A 1420 229140 2320 bits
0001111110 1420 230310 1320 bits
09 0001010110 1420 204990 440 bits
N/A 1420 204960 6800 bits
0001010110 1420 204990 440 bits
10 0001111100 1420 227700 320 bits
N/A 1420 227640 4280 bits
0001111100 1420 227640 240 bits
11 0000000010 1420 230640 240 bits
N/A 1420 230640 1120 bits
0000000001 1420 230340 200 bits
12 0001110101 1420 227190 6760 bits
N/A 1420 223200 800 bits
0001110101 1420 227190 2480 bits
13 0001100110 1420 214860 800 bits
N/A 1420 214860 4320 bits
0001100111 1420 214890 40 bits
14 - - -
- - -
- - -
15 0001111100 1420 230640 120 bits
N/A 1420 210000 5760 bits
0001011110 1420 210030 720 bits
16 0001101000 1420 217650 1840 bits
N/A 1420 215940 6480 bits
0001101000 1420 216930 880 bits
18 - - -
- - -
- - -
19 0000000001 1420 230610 920 bits
N/A 1420 229980 560 bits
0000000001 1420 230010 200 bits
21 0001000010 1420 196890 4720 bits
N/A 1420 193080 2320 bits
0001000010 1420 195990 1640 bits
23 0001001011 1420 201750 8240 bits
N/A 1420 198060 920 bits
0001001011 1420 201750 480 bits
25 0001101010 1420 225120 14800 bits
N/A 1420 216900 3840 bits
0001101010 1420 224970 2480 bits
26 0001101000 1420 217500 3480 bits
N/A 1420 215580 3080 bits
0001101000 1420 217410 1560 bits
27 0000000010 1420 230640 240 bits
N/A 1420 230640 2440 bits
0000000001 1420 230340 640 bits
28 0000111010 1420 191550 6960 bits
N/A 1420 187860 2680 bits
0000111010 1420 191550 2920 bits
29 0001111101 1420 230640 3960 bits
N/A 1420 228120 2000 bits
0001111101 1420 230310 800 bits
30 0001111000 1420 230640 14080 bits
N/A 1420 225480 1400 bits
0001111000 1420 228090 1400 bits
31 0001011001 1420 208050 2560 bits
N/A 1420 206700 2000 bits
0001011001 1420 207690 560 bits
32 0001111000 1420 228360 5720 bits
N/A 1420 225060 1080 bits
0001111000 1420 228390 2280 bits
33 0001101111 1420 219840 240 bits
N/A 1420 219840 120 bits
0001101111 1420 219840 200 bits
34 0000000010 1420 230640 240 bits
N/A 1420 230640 1600 bits
0000000001 1420 230340 640 bits
36 0001110111 1420 230640 8000 bits
N/A 1420 224940 1240 bits
0001110111 1420 230310 2960 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