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]

1389 463140

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 13
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 7
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0515 03F15 0515 09F15 0515 1015
Key a38a39c4b338d008a0e7403abf1a642d
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0815 03F15 0815 31F15 0815 1215
Key a38a39c4b338d008a0e7403abf1a642d
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 1115 10F15 1115 09F15 1115 0615
Key a38a39c4b338d008a0e7403abf1a642d
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1615 12F15 1615 31F15 1615 1015
Key a38a39c4b338d008a0e7403abf1a642d
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2515 03F15 2515 12F15 2515 1015
Key a38a39c4b338d008a0e7403abf1a642d
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2615 31F15 2615 03F15 2615 1215
Key a38a39c4b338d008a0e7403abf1a642d
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 32
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 3315 31F15 3315 12F15 3315 1015
Key a38a39c4b338d008a0e7403abf1a642d

Authenticated Data

02 0001001001 1389 425610 120 bits
N/A 1389 425460 5880 bits
0001001001 1389 425610 160 bits
03 0000000100 1389 463110 9080 bits
N/A 1389 460560 4200 bits
0000000100 1389 462810 960 bits
04 0001111010 1389 456690 7480 bits
N/A 1389 454800 4480 bits
0001111010 1389 456510 960 bits
05 0000001000 1389 463110 560 bits
N/A 1389 463080 8080 bits
0000001000 1389 462810 160 bits
06 0001111010 1389 458850 22520 bits
N/A 1389 454920 7280 bits
0001111010 1389 458790 2760 bits
07 0001010000 1389 429930 320 bits
N/A 1389 429840 13920 bits
0001010000 1389 429840 240 bits
08 0000001000 1389 463110 600 bits
N/A 1389 463080 440 bits
0000001000 1389 462810 200 bits
09 0000000101 1389 460950 120 bits
N/A 1389 460920 8920 bits
0000000101 1389 460950 120 bits
10 0000000111 1389 463110 1960 bits
N/A 1389 462420 2840 bits
0000000111 1389 462450 520 bits
11 0000001000 1389 463110 80 bits
N/A 1389 463080 1480 bits
0001100000 1389 439860 800 bits
12 0000000100 1389 463110 12320 bits
N/A 1389 460500 4320 bits
0000000100 1389 462810 2600 bits
13 0001111001 1389 455790 5200 bits
N/A 1389 454680 4400 bits
0001111001 1389 455790 880 bits
14 - - -
- - -
- - -
15 0001101010 1389 449340 15040 bits
N/A 1389 445380 1760 bits
0001101010 1389 448170 2960 bits
16 0000001000 1389 463110 600 bits
N/A 1389 463080 9480 bits
0000001000 1389 462810 200 bits
18 - - -
- - -
- - -
19 0001101101 1389 447510 600 bits
N/A 1389 447420 6760 bits
0001101101 1389 447480 560 bits
21 0001110001 1389 450000 680 bits
N/A 1389 449880 6320 bits
0001110001 1389 450000 640 bits
23 0001111101 1389 460650 13480 bits
N/A 1389 456660 5560 bits
0001111101 1389 459990 1560 bits
25 0000001000 1389 463110 560 bits
N/A 1389 463080 2840 bits
0000001000 1389 462810 160 bits
26 0000001000 1389 463110 600 bits
N/A 1389 463080 8120 bits
0000001000 1389 462810 200 bits
27 0001100000 1389 443610 11120 bits
N/A 1389 439740 3760 bits
0001100000 1389 443370 4080 bits
28 - - -
- - -
- - -
29 0001100000 1389 439770 680 bits
N/A 1389 439740 2040 bits
0001100000 1389 439770 640 bits
30 0001010110 1389 433440 240 bits
N/A 1389 433380 200 bits
0001010110 1389 433380 160 bits
31 0000000011 1389 463110 16200 bits
N/A 1389 459960 9920 bits
0000000011 1389 462810 4400 bits
32 - - -
- - -
- - -
33 0000001000 1389 463110 440 bits
N/A 1389 463080 5600 bits
0000001000 1389 462810 160 bits
34 0001100111 1389 447570 11400 bits
N/A 1389 442620 2080 bits
0001100111 1389 447570 2000 bits
36 0001100101 1389 442500 320 bits
N/A 1389 442500 3680 bits
0001100101 1389 442500 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