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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]

1412 98640

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 6
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 0406 28F15 0415 12F15 0406 1915
Key 01331beb3ee0100b83a14aee8eb74c2d
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0606 16F15 0615 31F15 0606 2815
Key 01331beb3ee0100b83a14aee8eb74c2d
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1006 12F15 1015 19F15 1006 2815
Key 01331beb3ee0100b83a14aee8eb74c2d
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1106 02F15 1115 25F15 1106 1215
Key 01331beb3ee0100b83a14aee8eb74c2d
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 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2906 30F06 2915 19F15 2906 1215
Key 01331beb3ee0100b83a14aee8eb74c2d
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3606 02F15 3615 25F15 3606 3006
Key 01331beb3ee0100b83a14aee8eb74c2d

Authenticated Data

02 0000100011 1412 98610 2160 bits
N/A 1412 98160 3560 bits
0000100011 1412 98310 560 bits
03 0000010000 1412 90810 6240 bits
N/A 1412 86820 5760 bits
0000010000 1412 87630 1160 bits
04 0000100100 1412 98610 200 bits
N/A 1412 98580 1800 bits
0000100011 1412 98310 600 bits
05 0000001100 1412 84660 520 bits
N/A 1412 84420 6480 bits
0000001100 1412 84450 440 bits
06 0000100100 1412 98610 200 bits
N/A 1412 98580 680 bits
0000100011 1412 98310 600 bits
07 0000011010 1412 93000 720 bits
N/A 1412 92940 2600 bits
0000011010 1412 92970 680 bits
08 0000010001 1412 90870 10760 bits
N/A 1412 87120 40 bits
0000010001 1412 90870 2040 bits
09 0000000100 1412 83250 7320 bits
N/A 1412 79620 6840 bits
0000000100 1412 79650 520 bits
10 0000100100 1412 98610 200 bits
N/A 1412 98580 7520 bits
0000100011 1412 98310 600 bits
11 0000100100 1412 98610 200 bits
N/A 1412 98580 4080 bits
0000100011 1412 98310 600 bits
12 0000100011 1412 98610 2080 bits
N/A 1412 98220 6120 bits
0000100011 1412 98310 560 bits
13 0000000010 1412 78240 240 bits
N/A 1412 78240 6520 bits
0000000010 1412 78240 240 bits
14 - - -
- - -
- - -
15 0001110100 1412 74040 9680 bits
N/A 1412 70260 3600 bits
0001110100 1412 73710 1400 bits
16 0000100000 1412 98610 5520 bits
N/A 1412 96420 3720 bits
0000100000 1412 96450 520 bits
18 - - -
- - -
- - -
19 0000011111 1412 98610 13200 bits
N/A 1412 95640 2040 bits
0000011111 1412 98250 4000 bits
21 0001110110 1412 75570 12920 bits
N/A 1412 71580 8800 bits
0001110110 1412 75570 5240 bits
23 0000000110 1412 84810 6800 bits
N/A 1412 80820 13240 bits
0000000110 1412 80850 520 bits
25 0000100000 1412 98610 10960 bits
N/A 1412 96360 4240 bits
0000100000 1412 98250 4080 bits
26 0000001111 1412 86040 200 bits
N/A 1412 86040 11880 bits
0000001111 1412 86040 200 bits
27 0001101010 1412 64410 160 bits
N/A 1412 64380 5560 bits
0001101010 1412 64410 160 bits
28 0000011111 1412 98610 12760 bits
N/A 1412 95700 960 bits
0000011111 1412 98310 2000 bits
29 0000100100 1412 98610 200 bits
N/A 1412 98580 440 bits
0000011101 1412 94350 120 bits
30 0000100100 1412 98610 240 bits
N/A 1412 98520 440 bits
0000100011 1412 98310 600 bits
31 0000011001 1412 95820 9760 bits
N/A 1412 91860 560 bits
0000011001 1412 95250 1120 bits
32 0000010010 1412 88200 720 bits
N/A 1412 88200 760 bits
0000010010 1412 88200 720 bits
33 0000011011 1412 96810 8960 bits
N/A 1412 93360 2760 bits
0000011011 1412 95670 2000 bits
34 0001100111 1412 66390 8600 bits
N/A 1412 62400 520 bits
0001100111 1412 65730 1000 bits
36 0000100100 1412 98610 200 bits
N/A 1412 98580 5240 bits
0000100011 1412 98310 600 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