Input Options:

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]

1417 372330

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 15
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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0609 12F15 0909 0609 0415 0909
Key 5f8fe0e4b51d8e4efba526cb7663ebcd
SVID 9
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 1115 19F15 1009 1115 2815 1009
Key 5f8fe0e4b51d8e4efba526cb7663ebcd
SVID 12
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 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2109 12F15 2915 2109 2615 2915
Key 5f8fe0e4b51d8e4efba526cb7663ebcd
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2709 28F15 2915 2709 1915 2915
Key 5f8fe0e4b51d8e4efba526cb7663ebcd
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3008 11F15 3615 3008 2915 3615
Key 5f8fe0e4b51d8e4efba526cb7663ebcd
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3309 28F15 2615 3309 1215 2615
Key 5f8fe0e4b51d8e4efba526cb7663ebcd
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001100110 1417 370980 5920 bits
N/A 1417 367020 1440 bits
0001100110 1417 369870 680 bits
03 0001001100 1417 351510 600 bits
N/A 1417 351480 3080 bits
0001001100 1417 351510 600 bits
04 0001101110 1417 372300 2080 bits
N/A 1417 371700 3920 bits
0001101110 1417 371970 520 bits
05 0000111110 1417 345990 6560 bits
N/A 1417 343140 3920 bits
0000111110 1417 344550 1240 bits
06 0001101111 1417 372300 320 bits
N/A 1417 372300 2400 bits
0001101110 1417 372000 720 bits
07 0001100101 1417 368550 3560 bits
N/A 1417 366240 10880 bits
0001100101 1417 368070 1240 bits
08 0001011001 1417 359130 360 bits
N/A 1417 359100 5320 bits
0001011001 1417 359130 360 bits
09 0000111001 1417 340080 480 bits
N/A 1417 340020 2400 bits
0000111001 1417 340020 400 bits
10 0001101111 1417 372300 320 bits
N/A 1417 372240 4640 bits
0001101110 1417 372000 120 bits
11 0001101101 1417 372270 4280 bits
N/A 1417 371100 2160 bits
0001101101 1417 371850 1280 bits
12 0001101110 1417 372300 1800 bits
N/A 1417 371820 7520 bits
0001101110 1417 371850 520 bits
13 0001010101 1417 356730 360 bits
N/A 1417 356700 4320 bits
0001010101 1417 356700 320 bits
14 - - -
- - -
- - -
15 0001000000 1417 347790 13520 bits
N/A 1417 343800 10280 bits
0001000000 1417 346050 1480 bits
16 0001011100 1417 364890 6440 bits
N/A 1417 360900 2120 bits
0001011100 1417 362010 1080 bits
18 - - -
- - -
- - -
19 0001101010 1417 372300 8880 bits
N/A 1417 369060 3800 bits
0001101010 1417 369450 200 bits
21 0001001011 1417 351060 800 bits
N/A 1417 372300 1720 bits
0001001011 1417 351060 800 bits
23 0001010101 1417 356820 480 bits
N/A 1417 356820 2520 bits
0001010101 1417 356820 480 bits
25 0001100101 1417 366450 520 bits
N/A 1417 366420 1800 bits
0001100101 1417 366480 520 bits
26 0001100100 1417 366060 200 bits
N/A 1417 366060 6520 bits
0001100100 1417 366060 200 bits
27 0001101111 1417 372300 320 bits
N/A 1417 372300 200 bits
0001101001 1417 371910 1400 bits
28 0001101010 1417 372270 13680 bits
N/A 1417 369240 2960 bits
0001101010 1417 371970 2640 bits
29 0001101110 1417 372300 1320 bits
N/A 1417 371880 9360 bits
0001101110 1417 371910 600 bits
30 0001101111 1417 372300 280 bits
N/A 1417 372300 600 bits
0001101000 1417 368790 760 bits
31 0001011010 1417 363870 6800 bits
N/A 1417 359760 4760 bits
0001011010 1417 363690 480 bits
32 0001010001 1417 358470 9600 bits
N/A 1417 354420 1240 bits
0001010001 1417 358410 2120 bits
33 0001101111 1417 372300 320 bits
N/A 1417 372300 8400 bits
0001101110 1417 372000 720 bits
34 0000110001 1417 338490 5800 bits
N/A 1417 334980 7440 bits
0000110001 1417 338490 640 bits
36 0001101110 1417 372300 1320 bits
N/A 1417 371820 400 bits
0001101110 1417 371970 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