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]

1383 75720

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 0302 34F15 0315 08F15 0302 2315
Key 065bbd5259e103bbceaf108ca2bd1ead
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0502 31F15 0515 34F15 0502 0615
Key 065bbd5259e103bbceaf108ca2bd1ead
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 1302 21F15 1315 23F15 1302 2715
Key 065bbd5259e103bbceaf108ca2bd1ead
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1502 34F15 1515 08F15 1502 2315
Key 065bbd5259e103bbceaf108ca2bd1ead
SVID 18
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001101011 1383 65400 680 bits
N/A 1383 65400 9720 bits
0001101011 1383 65370 640 bits
03 0001111101 1383 75690 40 bits
N/A 1383 75660 6600 bits
0001111100 1383 75390 440 bits
04 0001101100 1383 65700 280 bits
N/A 1383 65700 4400 bits
0001101100 1383 65700 280 bits
05 0001111101 1383 75690 40 bits
N/A 1383 75660 7880 bits
0001111100 1383 75390 440 bits
06 0001110011 1383 69720 80 bits
N/A 1383 69600 4480 bits
0001110010 1383 69630 760 bits
07 0001010011 1383 50850 520 bits
N/A 1383 50820 2920 bits
0001010011 1383 50850 520 bits
08 0001110111 1383 75690 6440 bits
N/A 1383 72180 1360 bits
0001110111 1383 73830 560 bits
09 0001111001 1383 74280 1280 bits
N/A 1383 73620 3760 bits
0001111001 1383 73710 560 bits
10 0001011011 1383 58980 5200 bits
N/A 1383 55620 4920 bits
0001011011 1383 57270 1360 bits
11 0001100011 1383 64080 13280 bits
N/A 1383 60120 2800 bits
0001100011 1383 61710 1040 bits
12 0001010101 1383 52530 1400 bits
N/A 1383 51660 1760 bits
0001010101 1383 52530 480 bits
13 0001111101 1383 75690 40 bits
N/A 1383 75660 5320 bits
0001111100 1383 75390 440 bits
14 - - -
- - -
- - -
15 0001111101 1383 75690 40 bits
N/A 1383 75660 4960 bits
0001111100 1383 75390 440 bits
16 0001010010 1383 52050 2200 bits
N/A 1383 50220 520 bits
0001010010 1383 50250 520 bits
18 - - -
- - -
- - -
19 0001011100 1383 56220 280 bits
N/A 1383 56220 160 bits
0001011100 1383 56190 200 bits
21 0001111010 1383 75690 4480 bits
N/A 1383 73800 1840 bits
0001111010 1383 75390 1200 bits
23 0001111011 1383 75690 2960 bits
N/A 1383 74580 440 bits
0001111011 1383 74610 200 bits
25 0001100000 1383 58860 120 bits
N/A 1383 58260 3880 bits
0001100000 1383 58290 40 bits
26 0000111011 1383 36660 800 bits
N/A 1383 36540 4840 bits
0000111011 1383 36540 560 bits
27 0001110111 1383 75660 7760 bits
N/A 1383 72240 5120 bits
0001110111 1383 73230 800 bits
28 - - -
- - -
- - -
29 0001010110 1383 52860 80 bits
N/A 1383 7260 1360 bits
0000001011 1383 11130 1760 bits
30 0001110001 1383 72270 12120 bits
N/A 1383 68460 7080 bits
0001110001 1383 72270 1880 bits
31 0001000011 1383 41790 1160 bits
N/A 1383 41280 6600 bits
0001000011 1383 41310 600 bits
32 - - -
- - -
- - -
33 0001000111 1383 47610 6920 bits
N/A 1383 43500 6000 bits
0001000111 1383 44190 720 bits
34 0001110111 1383 75690 10280 bits
N/A 1383 72060 6640 bits
0001110111 1383 75390 3240 bits
36 0001110110 1383 71580 160 bits
N/A 1383 71580 8040 bits
0001110110 1383 71610 160 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