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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]

1409 75570

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 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 0215 07F15 3215 0215 0515 3215
Key 6fbc8584a3b1f44adb43241f313e2974
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0315 11F15 3215 0315 0515 3215
Key 6fbc8584a3b1f44adb43241f313e2974
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 0815 15F15 3215 0815 0715 3215
Key 6fbc8584a3b1f44adb43241f313e2974
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1015 09F15 1215 1015 1115 1215
Key 6fbc8584a3b1f44adb43241f313e2974
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2515 12F15 3215 2515 1615 3215
Key 6fbc8584a3b1f44adb43241f313e2974
SVID 32
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 3315 23F15 1615 3315 1215 1615
Key 6fbc8584a3b1f44adb43241f313e2974

Authenticated Data

02 0001111100 1409 75540 640 bits
N/A 1409 75540 2840 bits
0001111100 1409 75240 240 bits
03 0001111100 1409 75540 640 bits
N/A 1409 75540 4680 bits
0001111100 1409 75240 240 bits
04 0001100110 1409 66330 13400 bits
N/A 1409 62340 3800 bits
0001100110 1409 62370 680 bits
05 0001111010 1409 75540 5880 bits
N/A 1409 74040 6880 bits
0001111010 1409 74070 280 bits
06 0001101101 1409 69630 13960 bits
N/A 1409 66420 5760 bits
0001101101 1409 69630 2600 bits
07 0000111000 1409 37140 4000 bits
N/A 1409 34560 8680 bits
0000111000 1409 36990 920 bits
08 0001111100 1409 75540 640 bits
N/A 1409 75540 1880 bits
0001111100 1409 75240 240 bits
09 0001110011 1409 73410 6680 bits
N/A 1409 69780 9160 bits
0001110011 1409 70350 520 bits
10 0001111100 1409 75540 640 bits
N/A 1409 75540 2680 bits
0001111100 1409 75240 240 bits
11 0001111001 1409 75540 2280 bits
N/A 1409 55260 2440 bits
0001011010 1409 55230 760 bits
12 0001111011 1409 75540 5000 bits
N/A 1409 74400 1560 bits
0001111011 1409 75210 1040 bits
13 0001101101 1409 70410 14920 bits
N/A 1409 66360 1120 bits
0001101101 1409 70410 2400 bits
14 - - -
- - -
- - -
15 0001100110 1409 66030 7600 bits
N/A 1409 61920 920 bits
0001100110 1409 66030 1520 bits
16 0001111001 1409 75540 14160 bits
N/A 1409 73500 8480 bits
0001111001 1409 75210 2000 bits
18 - - -
- - -
- - -
19 0001011010 1409 54930 360 bits
N/A 1409 54900 2720 bits
0001011010 1409 54900 320 bits
21 0001011111 1409 57780 160 bits
N/A 1409 57780 1760 bits
0001011111 1409 57750 120 bits
23 0001101101 1409 66270 440 bits
N/A 1409 66120 6680 bits
0001101101 1409 66270 240 bits
25 0001111100 1409 75540 640 bits
N/A 1409 75540 5560 bits
0001111100 1409 75240 240 bits
26 0001111001 1409 73320 80 bits
N/A 1409 73260 4720 bits
0001111001 1409 73410 80 bits
27 0001010001 1409 51690 4840 bits
N/A 1409 49740 1120 bits
0001010001 1409 51450 1800 bits
28 0001100011 1409 60450 80 bits
N/A 1409 60420 2960 bits
0001100011 1409 60420 40 bits
29 0001001010 1409 45450 520 bits
N/A 1409 45420 240 bits
0001001010 1409 45450 520 bits
30 0001000110 1409 43260 760 bits
N/A 1409 43260 4920 bits
0001000110 1409 43200 680 bits
31 0001111100 1409 75210 200 bits
N/A 1409 75240 11720 bits
0001111100 1409 75240 240 bits
32 0001111001 1409 75540 11440 bits
N/A 1409 73500 2760 bits
0001111001 1409 75210 4480 bits
33 0001111100 1409 75540 640 bits
N/A 1409 75540 4560 bits
0001111100 1409 75240 240 bits
34 0001100110 1409 62310 600 bits
N/A 1409 62280 7040 bits
0001100110 1409 62310 600 bits
36 0001100001 1409 59190 400 bits
N/A 1409 59100 4800 bits
0001100001 1409 59130 360 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