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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]

1403 68820

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 13
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1012 12F15 1015 11F15 1012 0415
Key 883d4f35951be3edb59a3e865ac54709
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 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 07F15 1800 30F15 1800 2715
Key 883d4f35951be3edb59a3e865ac54709
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1912 12F15 1915 33F15 1912 0415
Key 883d4f35951be3edb59a3e865ac54709
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2812 12F15 2815 04F15 2812 3315
Key 883d4f35951be3edb59a3e865ac54709
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2912 27F15 2915 30F15 2912 0715
Key 883d4f35951be3edb59a3e865ac54709
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001110001 1403 68790 440 bits
N/A 1403 68760 5280 bits
0001110001 1403 68490 40 bits
03 0001011110 1403 57480 560 bits
N/A 1403 57420 1920 bits
0001011110 1403 57450 520 bits
04 0000110011 1403 31980 1040 bits
N/A 1403 31080 2880 bits
0000110011 1403 31650 240 bits
05 0001001111 1403 48150 120 bits
N/A 1403 48060 1000 bits
0001001111 1403 48090 40 bits
06 0000111010 1403 35880 480 bits
N/A 1403 35760 2720 bits
0000111010 1403 35850 440 bits
07 0001101101 1403 68790 8080 bits
N/A 1403 66480 10400 bits
0001101101 1403 68490 2720 bits
08 0001101111 1403 67560 320 bits
N/A 1403 67500 6920 bits
0001101111 1403 67530 320 bits
09 0001000001 1403 39780 160 bits
N/A 1403 39720 4080 bits
0001000001 1403 39750 120 bits
10 0001110001 1403 68790 440 bits
N/A 1403 68760 2880 bits
0001110001 1403 68490 40 bits
11 0001101100 1403 68790 1200 bits
N/A 1403 24180 10880 bits
0000100111 1403 25590 2240 bits
12 0001101011 1403 68790 11720 bits
N/A 1403 65160 720 bits
0001101011 1403 68490 3960 bits
13 0001100010 1403 60030 120 bits
N/A 1403 58320 3560 bits
0001100010 1403 59940 120 bits
14 - - -
- - -
- - -
15 0001011001 1403 54330 360 bits
N/A 1403 54300 2520 bits
0001011001 1403 54300 320 bits
16 0001011010 1403 55260 40 bits
N/A 1403 53580 1160 bits
0001011000 1403 53580 160 bits
18 - - -
- - -
- - -
19 0001110001 1403 68790 440 bits
N/A 1403 68760 2600 bits
0001110001 1403 68490 40 bits
21 0001110000 1403 68790 560 bits
N/A 1403 43500 6160 bits
0001000111 1403 43500 320 bits
23 0001001010 1403 46650 2720 bits
N/A 1403 45240 520 bits
0001001010 1403 46650 1200 bits
25 0001100011 1403 63900 6280 bits
N/A 1403 60000 3200 bits
0001100010 1403 60030 760 bits
26 0001101101 1403 66300 320 bits
N/A 1403 66300 6080 bits
0001101101 1403 66270 280 bits
27 0001101111 1403 68790 2520 bits
N/A 1403 67740 4360 bits
0001101111 1403 68490 840 bits
28 0001110001 1403 68790 440 bits
N/A 1403 68760 240 bits
0001110001 1403 68490 40 bits
29 0001110001 1403 68790 440 bits
N/A 1403 68760 7360 bits
0001110001 1403 68490 40 bits
30 0001101101 1403 68790 10320 bits
N/A 1403 66420 3000 bits
0001101101 1403 68250 1200 bits
31 0000000110 1403 8370 8440 bits
N/A 1403 4560 2600 bits
0000000110 1403 4590 440 bits
32 - - -
- - -
- - -
33 0001101110 1403 68790 3840 bits
N/A 1403 66600 5360 bits
0001101101 1403 66630 760 bits
34 0001000110 1403 46770 3640 bits
N/A 1403 46800 8040 bits
0001000110 1403 46770 320 bits
36 0000111010 1403 37890 4160 bits
N/A 1403 35520 7280 bits
0000111010 1403 35550 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 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