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]

1396 34620

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 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 7
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 1012 11F15 1015 31F15 1012 2515
Key 1dd2e4d323eb231da2b0a0e6ce11b6cd
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 1212 31F15 1215 11F15 1212 2515
Key 1dd2e4d323eb231da2b0a0e6ce11b6cd
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1612 11F15 1615 25F15 1612 3115
Key 1dd2e4d323eb231da2b0a0e6ce11b6cd
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2912 33F15 2915 19F15 2912 0715
Key 1dd2e4d323eb231da2b0a0e6ce11b6cd
SVID 31
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

Authenticated Data

02 0001101110 1395 600210 200 bits
N/A 1395 600180 8120 bits
0001101110 1395 600210 200 bits
03 0000110000 1396 29970 680 bits
N/A 1396 29940 1680 bits
0000110000 1396 29970 680 bits
04 0000100001 1396 21810 1720 bits
N/A 1396 20820 6360 bits
0000100001 1396 20850 520 bits
05 0000101001 1396 27930 1080 bits
N/A 1396 25380 4120 bits
0000101001 1396 25410 200 bits
06 0000100101 1396 25410 5480 bits
N/A 1396 22860 5400 bits
0000100101 1396 24210 880 bits
07 0000110110 1396 34560 1960 bits
N/A 1396 33480 1520 bits
0000110110 1396 33810 800 bits
08 0000110101 1396 33900 4040 bits
N/A 1395 597120 4680 bits
0000110101 1396 33030 440 bits
09 0000100111 1396 25410 1880 bits
N/A 1396 24180 6360 bits
0000100111 1396 24210 200 bits
10 0000111000 1396 34590 440 bits
N/A 1396 34560 4000 bits
0000111000 1396 34290 40 bits
11 0000110110 1396 34590 5040 bits
N/A 1396 33060 760 bits
0000110110 1396 34290 760 bits
12 0000111000 1396 34590 440 bits
N/A 1396 34560 2840 bits
0000111000 1396 34290 40 bits
13 0000100111 1396 28080 5440 bits
N/A 1396 24360 9920 bits
0000100111 1396 24450 480 bits
14 - - -
- - -
- - -
15 0000011010 1396 18270 3840 bits
N/A 1396 16500 3680 bits
0000011010 1396 18270 1360 bits
16 0000111000 1396 34590 440 bits
N/A 1396 34560 3960 bits
0000111000 1396 34290 40 bits
18 - - -
- - -
- - -
19 0000010001 1396 14760 15920 bits
N/A 1396 10800 4720 bits
0000010001 1396 14550 3680 bits
21 0000100101 1396 23310 600 bits
N/A 1396 23280 7600 bits
0000100101 1396 23280 560 bits
23 0000101111 1396 32940 4120 bits
N/A 1396 29220 6720 bits
0000101111 1396 29250 520 bits
25 0000110110 1396 34590 3720 bits
N/A 1396 33240 2440 bits
0000110110 1396 33870 400 bits
26 0000110111 1396 33930 320 bits
N/A 1396 33840 11560 bits
0000110111 1396 33900 240 bits
27 0000010100 1396 14850 6920 bits
N/A 1396 13020 5080 bits
0000010100 1396 14850 1800 bits
28 0000011100 1396 20850 6960 bits
N/A 1396 17880 3480 bits
0000011100 1396 20850 2120 bits
29 0000111000 1396 34590 440 bits
N/A 1396 34560 3120 bits
0000111000 1396 34290 40 bits
30 0000000101 1396 3990 440 bits
N/A 1396 3960 1360 bits
0000000101 1396 3990 440 bits
31 0000110110 1396 34590 3760 bits
N/A 1396 33540 7520 bits
0000110110 1396 34290 880 bits
32 - - -
- - -
- - -
33 0000110110 1396 34590 5880 bits
N/A 1396 33000 3280 bits
0000110110 1396 34290 600 bits
34 0000001010 1396 10920 6480 bits
N/A 1396 7080 1160 bits
0000001010 1396 10650 2080 bits
36 0000000001 1396 5580 8160 bits
N/A 1395 604200 2560 bits
0000000000 1396 930 40 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