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]

1413 509640

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0206 36F15 0215 30F15 0206 1115
Key b52891596913189af0b7ac4e49121bc2
SVID 7
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 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 2506 16F15 2515 36F15 2506 1115
Key b52891596913189af0b7ac4e49121bc2
SVID 27
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 2906 27F15 2915 30F15 2906 1906
Key b52891596913189af0b7ac4e49121bc2
SVID 30
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 3406 36F15 3415 32F15 3406 3015
Key b52891596913189af0b7ac4e49121bc2
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001010110 1413 509610 200 bits
N/A 1413 509580 10480 bits
0001010100 1413 509310 760 bits
03 0001001101 1413 506790 4920 bits
N/A 1413 504180 6920 bits
0001001101 1413 506790 1520 bits
04 0000100111 1413 481410 200 bits
N/A 1413 481380 360 bits
0000100111 1413 481380 160 bits
05 0001000010 1413 497820 480 bits
N/A 1413 497820 6520 bits
0001000010 1413 497850 520 bits
06 0000101100 1413 487350 8520 bits
N/A 1413 484200 1120 bits
0000101100 1413 487350 2320 bits
07 0001010110 1413 509610 200 bits
N/A 1413 509580 8760 bits
0001010101 1413 509310 600 bits
08 0001010101 1413 509340 640 bits
N/A 1413 509280 10360 bits
0001010101 1413 509310 600 bits
09 0000110010 1413 492120 8600 bits
N/A 1413 488160 5080 bits
0000110010 1413 489630 1320 bits
10 0001001111 1413 509610 12920 bits
N/A 1413 505680 3720 bits
0001001111 1413 509190 1000 bits
11 0001010101 1413 509580 880 bits
N/A 1413 509160 4200 bits
0001010101 1413 509190 440 bits
12 0001010000 1413 509130 4560 bits
N/A 1413 505860 3880 bits
0001010000 1413 505890 40 bits
13 0000110000 1413 491010 8640 bits
N/A 1413 487020 1840 bits
0000110000 1413 490350 2360 bits
14 - - -
- - -
- - -
15 0000101111 1413 486660 800 bits
N/A 1413 486660 2920 bits
0000101111 1413 486660 800 bits
16 0001001001 1413 505800 12160 bits
N/A 1413 501840 10120 bits
0001001001 1413 503730 1200 bits
18 - - -
- - -
- - -
19 0000010001 1413 472170 8880 bits
N/A 1413 468180 7440 bits
0000010001 1413 469770 1480 bits
21 0000011001 1413 476910 6680 bits
N/A 1413 472860 6320 bits
0000011001 1413 476910 1200 bits
23 0000100101 1413 483330 3680 bits
N/A 1413 480420 1040 bits
0000100101 1413 481530 1080 bits
25 0001010110 1413 509610 200 bits
N/A 1413 509580 12600 bits
0001010101 1413 509310 600 bits
26 0000111000 1413 495210 8080 bits
N/A 1413 491580 1480 bits
0000111000 1413 495150 840 bits
27 0001010000 1413 509610 13000 bits
N/A 1413 464880 1040 bits
0001010000 1413 509310 4560 bits
28 0000011011 1413 477930 5240 bits
N/A 1413 474360 5280 bits
0000011011 1413 477930 720 bits
29 0001010110 1413 509610 200 bits
N/A 1413 509580 2280 bits
0001010101 1413 509310 600 bits
30 0001010101 1413 509610 2080 bits
N/A 1413 509160 5400 bits
0001010101 1413 509190 440 bits
31 0000111000 1413 495570 11400 bits
N/A 1413 491520 4440 bits
0000111000 1413 495570 2800 bits
32 0001001101 1413 508410 17440 bits
N/A 1413 504420 5600 bits
0001001101 1413 508410 4160 bits
33 0001000011 1413 498600 520 bits
N/A 1413 498480 2160 bits
0001000011 1413 498420 480 bits
34 0001010110 1413 509610 200 bits
N/A 1413 509580 3880 bits
0001010101 1413 509310 600 bits
36 0001010100 1413 509610 4680 bits
N/A 1413 508440 4360 bits
0001010100 1413 509310 880 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 4 ADKD types are: ADKD0, ADKD2, 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 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 or may not authenticate their own navigation message (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