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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]

1371 149040

Authenticated NMA Status
NMAS OPERATIONAL CID 0 CPKS NOMINAL
Tesla Chain in Force
PKID 1 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 1 NPKT ECDSA_P256 MID 0

OSNMA Tag Verification Inputs

Satellites in View 12
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 33 34 36
Satellites Transmitting OSNMA 8
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 33 34 36
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0306 25F15 0315 02F15 0306 1615
Key d9328d09734de03f45b58ddc87a1d9b1
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0506 25F15 0515 09F15 0506 0215
Key d9328d09734de03f45b58ddc87a1d9b1
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0806 25F15 0815 16F15 0806 0215
Key d9328d09734de03f45b58ddc87a1d9b1
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1006 12F15 1015 11F15 1006 0915
Key d9328d09734de03f45b58ddc87a1d9b1
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 16
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 16F15 1800 12F15 1800 2515
Key d9328d09734de03f45b58ddc87a1d9b1
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2606 16F15 2615 25F15 2606 1215
Key d9328d09734de03f45b58ddc87a1d9b1
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3106 12F15 3115 11F15 3106 1615
Key d9328d09734de03f45b58ddc87a1d9b1
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3306 12F15 3315 16F15 3306 2515
Key d9328d09734de03f45b58ddc87a1d9b1

Authenticated Data

01 - - -
- - -
- - -
02 0000111001 1371 111450 520 bits
N/A 1371 111420 4520 bits
0000111001 1371 111480 400 bits
03 0001111000 1371 149010 200 bits
N/A 1371 148980 3640 bits
0001110111 1371 148710 600 bits
04 0001100110 1371 142290 12320 bits
N/A 1371 138300 1440 bits
0001100110 1371 142110 520 bits
05 0001111000 1371 149010 200 bits
N/A 1371 148980 8400 bits
0001110111 1371 148710 600 bits
06 0001110000 1371 144210 160 bits
N/A 1371 144180 2960 bits
0001110000 1371 144180 160 bits
07 0000111100 1371 116850 20640 bits
N/A 1371 112860 10840 bits
0000111100 1371 116670 8760 bits
08 0001111000 1371 149010 200 bits
N/A 1371 148980 520 bits
0001110111 1371 148710 600 bits
09 0001110100 1371 146910 600 bits
N/A 1371 146820 7120 bits
0001110100 1371 146880 560 bits
10 0001111000 1371 149010 200 bits
N/A 1371 148980 2040 bits
0001110111 1371 148710 600 bits
11 0001110110 1371 149010 3880 bits
N/A 1371 123300 4160 bits
0001110110 1371 148590 520 bits
12 0001110111 1371 149010 2440 bits
N/A 1371 148560 4440 bits
0001110111 1371 148710 520 bits
13 0001101011 1371 141570 680 bits
N/A 1371 141480 3120 bits
0001101011 1371 141510 600 bits
14 - - -
- - -
- - -
15 0001011110 1371 134490 2840 bits
N/A 1371 130980 4440 bits
0001011110 1371 134370 640 bits
16 0001110110 1371 149010 7560 bits
N/A 1371 147840 2560 bits
0001110110 1371 148710 2040 bits
18 - - -
- - -
- - -
19 0001011010 1371 134790 6440 bits
N/A 1371 131040 11720 bits
0001011010 1371 134370 320 bits
20 - - -
- - -
- - -
21 0001100000 1371 138450 9040 bits
N/A 1371 134460 360 bits
0001100000 1371 138450 2680 bits
22 - - -
- - -
- - -
23 0001110001 1371 148770 12320 bits
N/A 1371 144780 7360 bits
0001110001 1371 145770 1480 bits
24 - - -
- - -
- - -
25 0001110111 1371 149010 3120 bits
N/A 1371 148500 3040 bits
0001110111 1371 148710 720 bits
26 0001111000 1371 149010 200 bits
N/A 1371 148980 7160 bits
0001110111 1371 148710 600 bits
27 0001010010 1371 127470 960 bits
N/A 1371 126000 10240 bits
0001010010 1371 127230 360 bits
29 0001010001 1371 125790 440 bits
N/A 1371 125760 15400 bits
0001010001 1371 125790 440 bits
30 0001000110 1371 119310 520 bits
N/A 1371 119100 6800 bits
0001000110 1371 119220 480 bits
31 0001111000 1371 149010 200 bits
N/A 1371 148980 3600 bits
0001110010 1371 148710 3800 bits
33 0001111000 1371 149010 200 bits
N/A 1371 148980 6320 bits
0001110110 1371 148710 600 bits
34 0001010111 1371 131250 4240 bits
N/A 1371 128580 800 bits
0001010111 1371 131130 640 bits
36 0001010001 1371 129870 7720 bits
N/A 1371 125820 4080 bits
0001010001 1371 126990 1320 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.

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