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]

1397 232950

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 9
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 4
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0703 19F15 0815 0703 1515 0815
Key 217b4cf1801a365de47c42425e3c7ade
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1303 16F15 0815 1303 1515 0815
Key 217b4cf1801a365de47c42425e3c7ade
SVID 15
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 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2503 34F15 0315 2503 1615 0315
Key 217b4cf1801a365de47c42425e3c7ade
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2603 23F15 3315 2603 0815 3315
Key 217b4cf1801a365de47c42425e3c7ade
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001100101 1397 217350 8760 bits
N/A 1397 211620 11520 bits
0001100101 1397 217350 3040 bits
03 0000000101 1397 232920 1000 bits
N/A 1397 232740 7880 bits
0000000101 1397 232620 480 bits
04 0001100100 1397 213540 640 bits
N/A 1397 213600 6160 bits
0001100100 1397 213570 640 bits
05 0000000001 1397 231390 2320 bits
N/A 1397 230280 5680 bits
0000000001 1397 230670 720 bits
06 0001101100 1397 218220 480 bits
N/A 1397 218220 240 bits
0001101100 1397 218250 480 bits
07 0000000110 1397 232920 80 bits
N/A 1397 232920 3960 bits
0000000101 1397 232620 480 bits
08 0000000011 1397 232920 8520 bits
N/A 1397 231420 5200 bits
0000000011 1397 232590 2600 bits
09 0001110001 1397 224910 13120 bits
N/A 1397 221100 2160 bits
0001110001 1397 222690 680 bits
10 0001010001 1397 205290 8760 bits
N/A 1397 202140 7760 bits
0001010001 1397 205290 2200 bits
11 0001011101 1397 212550 12040 bits
N/A 1397 208800 8720 bits
0001011101 1397 210330 1600 bits
12 0001001111 1397 200940 600 bits
N/A 1397 200940 6880 bits
0001001111 1397 200940 560 bits
13 0000000110 1397 232920 80 bits
N/A 1397 232920 7400 bits
0000000101 1397 232620 480 bits
14 - - -
- - -
- - -
15 0000000011 1397 232920 6400 bits
N/A 1397 231300 4760 bits
0000000011 1397 231330 360 bits
16 0000000101 1397 232920 1080 bits
N/A 1397 232680 840 bits
0000000101 1397 232620 480 bits
18 - - -
- - -
- - -
19 0001010110 1397 209010 6680 bits
N/A 1397 203040 640 bits
0001010110 1397 209010 40 bits
21 0001110110 1397 226530 9360 bits
N/A 1397 224220 3920 bits
0001110110 1397 226530 2440 bits
23 0001111110 1397 228690 40 bits
N/A 1397 228660 4800 bits
0001111110 1397 228690 40 bits
25 0000000110 1397 232920 80 bits
N/A 1397 232920 520 bits
0000000101 1397 232620 480 bits
26 0000000110 1397 232920 80 bits
N/A 1397 232920 3160 bits
0000000101 1397 232620 480 bits
27 0001110101 1397 223320 80 bits
N/A 1397 223320 1640 bits
0001110101 1397 223320 80 bits
28 0001100000 1397 210780 120 bits
N/A 1397 210720 3960 bits
0001100000 1397 210810 160 bits
29 0001001110 1397 204330 5520 bits
N/A 1397 159720 11360 bits
0001001110 1397 204330 1040 bits
30 0001101110 1397 219600 720 bits
N/A 1397 219600 1160 bits
0001101110 1397 219600 720 bits
31 0001111011 1397 230610 9040 bits
N/A 1397 186840 6840 bits
0001111011 1397 230430 1200 bits
32 - - -
- - -
- - -
33 0000111110 1397 192750 3120 bits
N/A 1397 190200 3760 bits
0000111110 1397 192510 680 bits
34 0000000000 1397 232890 6560 bits
N/A 1397 229260 2720 bits
0000000000 1397 232530 840 bits
36 0001101100 1397 221790 10360 bits
N/A 1397 217800 6840 bits
0001101100 1397 219930 760 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