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 334380

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 8
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 0304 15F15 0315 05F04 0304 0804
Key b446d80d9387b71b66a82436f77f98a5
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0704 08F04 0715 15F15 0704 3015
Key b446d80d9387b71b66a82436f77f98a5
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 1304 08F04 1315 15F15 1304 2315
Key b446d80d9387b71b66a82436f77f98a5
SVID 15
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 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2604 23F15 2615 31F15 2604 0804
Key b446d80d9387b71b66a82436f77f98a5
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000010101 1383 318630 760 bits
N/A 1383 318540 5800 bits
0000010101 1383 318600 720 bits
03 0000110000 1383 334350 120 bits
N/A 1383 334320 7560 bits
0000101111 1383 334050 520 bits
04 0000010100 1383 319350 5520 bits
N/A 1383 317340 2320 bits
0000010100 1383 319350 1000 bits
05 0000101111 1383 333690 40 bits
N/A 1383 333660 7760 bits
0000101111 1383 333690 40 bits
06 0000010111 1383 323130 12000 bits
N/A 1383 319200 3160 bits
0000010111 1383 323130 2440 bits
07 0000110000 1383 334350 120 bits
N/A 1383 334320 2040 bits
0000101111 1383 334050 520 bits
08 0000110000 1383 334350 120 bits
N/A 1383 334320 5360 bits
0000101111 1383 334050 520 bits
09 0000100001 1383 325350 120 bits
N/A 1383 325320 4800 bits
0000100001 1383 325410 80 bits
10 0000000001 1383 309570 5680 bits
N/A 1383 306360 1400 bits
0000000001 1383 308310 1680 bits
11 0000001010 1383 314610 7120 bits
N/A 1383 311460 1920 bits
0000001010 1383 314610 2960 bits
12 0001111100 1383 307830 5560 bits
N/A 1383 303960 1920 bits
0001111100 1383 306390 1920 bits
13 0000110000 1383 334350 120 bits
N/A 1383 334320 8520 bits
0000101111 1383 334050 520 bits
14 - - -
- - -
- - -
15 0000101001 1383 334350 20640 bits
N/A 1383 330540 8800 bits
0000101001 1383 334050 5520 bits
16 0001111001 1383 302370 680 bits
N/A 1383 302280 2200 bits
0001111001 1383 302370 640 bits
18 - - -
- - -
- - -
19 - - -
- - -
- - -
21 0000101111 1383 334020 480 bits
N/A 1383 334020 7040 bits
0000101111 1383 333990 440 bits
23 0000101110 1383 334350 5400 bits
N/A 1383 333360 3800 bits
0000101110 1383 334050 1280 bits
25 0000001000 1383 310830 760 bits
N/A 1383 310800 1600 bits
0000001000 1383 310830 760 bits
26 0000110000 1383 334350 120 bits
N/A 1383 334320 2560 bits
0000101111 1383 334050 520 bits
27 0000100010 1383 330270 18480 bits
N/A 1383 326280 5200 bits
0000100010 1383 330270 2280 bits
28 - - -
- - -
- - -
29 0000000100 1383 312210 3720 bits
N/A 1383 308220 2080 bits
0000000100 1383 312210 800 bits
30 0000011100 1383 326430 11840 bits
N/A 1383 322380 7800 bits
0000011100 1383 326430 920 bits
31 0000101100 1383 334350 9960 bits
- - -
0000101100 1383 333390 440 bits
32 - - -
- - -
- - -
33 0001101111 1383 299670 9640 bits
N/A 1383 295740 400 bits
0001101111 1383 297510 1040 bits
34 0000100111 1383 333330 10560 bits
N/A 1383 329280 8240 bits
0000100111 1383 329310 600 bits
36 0000010111 1383 322590 10080 bits
N/A 1383 319380 5160 bits
0000010111 1383 322590 1680 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