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]

1405 19230

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 10
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 3
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 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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1215 29F15 1015 1215 2515 1015
Key 88ebe4ffa75c31a6258b3ee8e8c13004
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1615 06F15 1115 1615 1015 1115
Key 88ebe4ffa75c31a6258b3ee8e8c13004
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 29
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3615 32F15 1115 3615 3415 1115
Key 88ebe4ffa75c31a6258b3ee8e8c13004

Authenticated Data

02 0000011100 1405 18600 1920 bits
N/A 1405 17520 320 bits
0000011100 1405 18570 800 bits
03 0000010100 1405 12990 440 bits
N/A 1405 12660 4120 bits
0000010100 1405 12720 80 bits
04 0000000010 1405 5100 8400 bits
N/A 1405 1980 880 bits
0000000010 1405 4470 1600 bits
05 0000001111 1405 10140 600 bits
N/A 1405 10140 4640 bits
0000001111 1405 10140 640 bits
06 0000000110 1405 4500 320 bits
N/A 1405 4500 1200 bits
0000000110 1405 4500 320 bits
07 0000011101 1405 18600 720 bits
N/A 1405 18600 2520 bits
0000011101 1405 18570 680 bits
08 0000010101 1405 17670 6040 bits
N/A 1405 13680 1880 bits
0000010101 1405 17550 2000 bits
09 0000001001 1405 10050 4640 bits
N/A 1405 6360 2240 bits
0000001001 1405 6390 440 bits
10 0000011011 1405 19200 7800 bits
N/A 1405 16860 2960 bits
0000011011 1405 18870 1880 bits
11 0000011101 1405 19200 3520 bits
N/A 1405 18180 3960 bits
0000011101 1405 18870 960 bits
12 0000011110 1405 19200 720 bits
N/A 1405 19200 5920 bits
0000011110 1405 18900 320 bits
13 0000000101 1405 7080 4200 bits
N/A 1405 3840 1880 bits
0000000101 1405 4170 480 bits
14 - - -
- - -
- - -
15 0001101011 1404 602250 10040 bits
N/A 1404 598260 4040 bits
0001101011 1404 602250 1320 bits
16 0000011110 1405 19200 720 bits
N/A 1405 19200 5120 bits
0000011110 1405 18900 320 bits
18 - - -
- - -
- - -
19 0000011101 1405 19170 1040 bits
N/A 1404 598200 8440 bits
0001101011 1404 602070 560 bits
21 0001110100 1405 2250 12200 bits
N/A 1404 604140 8280 bits
0001110100 1405 1050 1800 bits
23 0000001010 1405 10530 5680 bits
N/A 1405 7140 3160 bits
0000001010 1405 7170 680 bits
25 0000011010 1405 19200 10040 bits
N/A 1405 16200 3800 bits
0000011010 1405 18210 720 bits
26 0000010010 1405 11790 440 bits
N/A 1405 11760 5680 bits
0000010010 1405 11760 400 bits
27 0001100001 1404 595770 10320 bits
N/A 1404 592200 9160 bits
0001100001 1404 595770 3120 bits
28 0001110100 1404 604200 200 bits
N/A 1404 604200 6520 bits
0001110100 1404 604170 160 bits
29 0000011110 1405 19170 680 bits
N/A 1405 19140 960 bits
0000011110 1405 18900 320 bits
30 0001010111 1404 590520 6480 bits
N/A 1404 586500 5360 bits
0001010111 1404 589230 840 bits
31 0000011101 1405 18180 160 bits
N/A 1405 18180 3840 bits
0000011101 1405 18210 160 bits
32 0000010000 1405 13710 10480 bits
N/A 1405 10740 1320 bits
0000010000 1405 13710 3520 bits
33 0000011101 1405 19170 2840 bits
N/A 1405 18000 6800 bits
0000011101 1405 18870 560 bits
34 0001100010 1404 595650 7840 bits
N/A 1404 592920 560 bits
0001100010 1404 594930 1240 bits
36 0000011110 1405 19200 720 bits
N/A 1405 19200 1840 bits
0000011110 1405 18900 320 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