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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]

1397 146400

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 4
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 4
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 Not transmitting OSNMA
Key Not transmitting OSNMA
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 1211 10F15 1215 29F15 1211 1115
Key 94081340d90b11386d8866f7fd84d9d7
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 33F15 1915 29F15 1915 0415
Key 94081340d90b11386d8866f7fd84d9d7
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2611 21F15 2615 33F15 2611 1315
Key 94081340d90b11386d8866f7fd84d9d7
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2809 04F15 2815 33F15 2809 3115
Key 94081340d90b11386d8866f7fd84d9d7
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001110010 1397 145860 760 bits
N/A 1397 145800 2000 bits
0001110010 1397 145860 640 bits
03 0001011101 1397 133650 1160 bits
N/A 1397 132900 1000 bits
0001011101 1397 133470 440 bits
04 0001110011 1397 146370 640 bits
N/A 1397 112140 1120 bits
0000111101 1397 114270 80 bits
05 0001001111 1397 124470 240 bits
N/A 1397 124440 4120 bits
0001001111 1397 124470 280 bits
06 0000110111 1397 114030 4840 bits
N/A 1397 72960 10560 bits
0000110111 1397 114030 600 bits
07 0001110010 1397 145860 720 bits
N/A 1397 145740 5880 bits
0001110010 1397 145770 680 bits
08 0001101000 1397 145770 16200 bits
N/A 1397 139440 5360 bits
0001101000 1397 145350 4960 bits
09 0001000110 1397 119070 240 bits
N/A 1397 115500 1200 bits
0001000000 1397 115620 440 bits
10 0001110011 1397 146370 840 bits
N/A 1397 146220 2840 bits
0001110011 1397 146070 280 bits
11 0001110010 1397 146340 1800 bits
N/A 1397 145740 480 bits
0001110010 1397 145770 680 bits
12 0001110011 1397 146370 400 bits
N/A 1397 146340 4280 bits
0001110010 1397 146070 840 bits
13 0001101000 1397 139680 560 bits
N/A 1397 139680 4160 bits
0001101000 1397 139710 600 bits
14 - - -
- - -
- - -
15 0001010010 1397 130170 13720 bits
N/A 1397 126120 8720 bits
0001010010 1397 129810 3640 bits
16 0001101011 1397 141600 440 bits
N/A 1397 141600 1600 bits
0001101011 1397 141630 480 bits
18 - - -
- - -
- - -
19 0001110011 1397 146370 680 bits
N/A 1397 146340 640 bits
0001110011 1397 146070 280 bits
21 0001011010 1397 131220 480 bits
N/A 1397 131220 240 bits
0001011010 1397 131220 440 bits
23 0001100010 1397 135870 280 bits
N/A 1397 135840 680 bits
0001100010 1397 135840 240 bits
25 0001101100 1397 145920 13040 bits
N/A 1397 99600 1240 bits
0001101100 1397 145770 1960 bits
26 0001110011 1397 146370 400 bits
N/A 1397 146340 9520 bits
0001110010 1397 146070 720 bits
27 0001010000 1397 129150 7040 bits
N/A 1397 124980 18040 bits
0001010000 1397 129150 2520 bits
28 0001110011 1397 146370 320 bits
N/A 1397 146340 160 bits
0001101010 1397 145950 120 bits
29 0001101111 1397 146370 13880 bits
N/A 1397 143700 5240 bits
0001101111 1397 146070 2280 bits
30 0001110000 1397 145860 1400 bits
N/A 1397 115080 14880 bits
0001110000 1397 145770 640 bits
31 0001100111 1397 139050 520 bits
N/A 1397 139020 3360 bits
0001100111 1397 139050 520 bits
32 - - -
- - -
- - -
33 0001110011 1397 146370 1760 bits
N/A 1397 145920 7280 bits
0001110011 1397 146070 200 bits
34 0001000110 1397 122670 13000 bits
N/A 1397 118860 7080 bits
0001000110 1397 122670 5920 bits
36 0000111001 1397 111450 520 bits
N/A 1397 111420 8040 bits
0000111001 1397 111420 480 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