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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]

1393 212190

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 7
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0811 29F15 0315 0811 3015 0315
Key 3c2de4d752b117c0e341106eb6a3778d
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1311 31F15 2315 1311 2615 2315
Key 3c2de4d752b117c0e341106eb6a3778d
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1511 36F15 0315 1511 2315 0315
Key 3c2de4d752b117c0e341106eb6a3778d
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 03F15 2315 1800 2615 2315
Key 3c2de4d752b117c0e341106eb6a3778d
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2111 19F15 2615 2111 2315 2615
Key 3c2de4d752b117c0e341106eb6a3778d
SVID 23
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2711 19F15 2915 2711 3015 2915
Key 3c2de4d752b117c0e341106eb6a3778d
SVID 31
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 3311 23F15 1915 3311 2615 1915
Key 3c2de4d752b117c0e341106eb6a3778d

Authenticated Data

02 0001000101 1393 194730 360 bits
N/A 1393 194640 9760 bits
0001000101 1393 194730 320 bits
03 0001011111 1393 212160 5160 bits
N/A 1393 210120 40 bits
0001011111 1393 211830 1240 bits
04 0001010110 1393 208830 11200 bits
N/A 1393 204840 3440 bits
0001010110 1393 206970 1960 bits
05 0001011110 1393 210330 1560 bits
N/A 1393 208500 640 bits
0001011110 1393 210150 400 bits
06 0001011001 1393 209730 5960 bits
N/A 1393 206580 1560 bits
0001011001 1393 208650 1360 bits
07 0001000111 1393 195720 80 bits
N/A 1393 195720 12760 bits
0001000111 1393 195720 80 bits
08 0001100010 1393 212160 400 bits
N/A 1393 212160 240 bits
0001100001 1393 211860 40 bits
09 0001010110 1393 207690 7880 bits
N/A 1393 162660 8960 bits
0001010110 1393 205950 720 bits
10 0000110110 1393 185700 240 bits
N/A 1393 185700 2960 bits
0000110110 1393 185730 360 bits
11 0000111101 1393 194010 9600 bits
N/A 1393 189780 3000 bits
0000111101 1393 191910 760 bits
12 0000110010 1393 185190 7720 bits
N/A 1393 177420 320 bits
0000110010 1393 185190 1520 bits
13 0001100010 1393 212160 400 bits
N/A 1393 212160 1400 bits
0001100001 1393 211860 800 bits
14 - - -
- - -
- - -
15 0001100010 1393 212160 400 bits
N/A 1393 212160 1400 bits
0001100001 1393 211860 800 bits
16 0000100110 1393 176400 720 bits
N/A 1393 176400 1960 bits
0000100110 1393 176400 720 bits
18 - - -
- - -
- - -
19 0001010011 1393 203340 120 bits
N/A 1393 203340 3600 bits
0001010011 1393 203340 120 bits
21 0001100010 1393 212160 400 bits
N/A 1393 212160 1240 bits
0001100001 1393 211860 800 bits
23 0001011110 1393 212160 12640 bits
N/A 1393 209700 3360 bits
0001011110 1393 211830 2680 bits
25 0000101110 1393 184710 11320 bits
N/A 1393 181020 1080 bits
0000101110 1393 184710 4120 bits
26 0001011110 1393 212160 12200 bits
N/A 1393 209700 6200 bits
0001011110 1393 211830 1400 bits
27 0001100010 1393 212160 400 bits
N/A 1393 212160 1400 bits
0001100001 1393 211860 800 bits
28 - - -
- - -
- - -
29 0001001110 1393 200280 560 bits
N/A 1393 200220 7400 bits
0001001110 1393 200250 520 bits
30 0001010101 1393 204630 760 bits
N/A 1393 204540 8240 bits
0001010101 1393 204630 760 bits
31 0001011100 1393 212160 4600 bits
N/A 1393 166620 3680 bits
0001011100 1393 209730 120 bits
32 - - -
- - -
- - -
33 0001100010 1393 212160 400 bits
N/A 1393 212160 840 bits
0001100001 1393 211860 800 bits
34 0001010011 1393 206670 4960 bits
N/A 1393 202980 8800 bits
0001010011 1393 206670 480 bits
36 0001000110 1393 199350 2360 bits
N/A 1393 195360 960 bits
0001000110 1393 195390 440 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