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]

1401 343470

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 12
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 6
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 0307 25F15 1315 0307 1607 1315
Key 1bddd7c05ca4985145576bebb13e62df
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0507 31F15 1607 0507 2515 1607
Key 1bddd7c05ca4985145576bebb13e62df
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0915 31F15 0607 0915 1607 0607
Key 1bddd7c05ca4985145576bebb13e62df
SVID 13
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 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 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2307 12F15 2615 2307 3115 2615
Key 1bddd7c05ca4985145576bebb13e62df
SVID 25
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 2615 16F07 3115 2615 1315 3115
Key 1bddd7c05ca4985145576bebb13e62df
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 3307 28F15 2615 3307 1215 2615
Key 1bddd7c05ca4985145576bebb13e62df

Authenticated Data

02 0000000111 1401 313770 7880 bits
N/A 1401 309900 600 bits
0000000111 1401 309960 400 bits
03 0000111111 1401 343440 240 bits
N/A 1401 343440 1240 bits
0000111110 1401 343140 640 bits
04 0000111101 1401 343230 2720 bits
N/A 1401 342240 11800 bits
0000111101 1401 342270 280 bits
05 0000111111 1401 343440 240 bits
N/A 1401 343440 5680 bits
0000111110 1401 343140 640 bits
06 0000111111 1401 343350 120 bits
N/A 1401 343320 10760 bits
0000111110 1401 343140 640 bits
07 0000001101 1401 317100 10280 bits
N/A 1401 313560 3840 bits
0000001101 1401 316890 4760 bits
08 0000000001 1401 306570 680 bits
N/A 1401 306540 1120 bits
0000000001 1401 306570 680 bits
09 0000111010 1401 343440 14880 bits
N/A 1401 340260 7720 bits
0000111010 1401 343110 3920 bits
10 0000100110 1401 328530 360 bits
N/A 1401 328500 7680 bits
0000100110 1401 328500 320 bits
11 0000100100 1401 330390 5120 bits
N/A 1401 327360 4120 bits
0000100100 1401 328350 720 bits
12 0000100000 1401 328050 4360 bits
N/A 1401 324720 5560 bits
0000100000 1401 328050 1640 bits
13 0000111001 1401 343440 8960 bits
N/A 1401 340020 1920 bits
0000111001 1401 343110 1440 bits
14 - - -
- - -
- - -
15 0000110011 1401 340170 7040 bits
N/A 1401 335520 440 bits
0000110011 1401 340170 1040 bits
16 0000111111 1401 343440 440 bits
N/A 1401 343260 3040 bits
0000111110 1401 343140 640 bits
18 - - -
- - -
- - -
19 0000110000 1401 334350 120 bits
N/A 1401 334320 7200 bits
0000110000 1401 334350 120 bits
21 0000110000 1401 337050 1840 bits
N/A 1401 334260 5040 bits
0000110000 1401 337050 360 bits
23 0000111111 1401 343440 240 bits
N/A 1401 343440 7160 bits
0000111110 1401 343140 640 bits
25 0000111100 1401 343440 3800 bits
N/A 1401 341700 40 bits
0000111100 1401 341730 80 bits
26 0000111010 1401 343440 8040 bits
N/A 1401 340320 4520 bits
0000111010 1401 343110 2720 bits
27 0000100101 1401 331560 5240 bits
N/A 1401 328020 4000 bits
0000100101 1401 330390 840 bits
28 0000111000 1401 339450 520 bits
N/A 1401 339420 6280 bits
0000111000 1401 339420 440 bits
29 0000100000 1401 325230 760 bits
N/A 1401 325200 5920 bits
0000100000 1401 325230 760 bits
30 0000011001 1401 321390 520 bits
N/A 1401 320340 4000 bits
0000011000 1401 320430 560 bits
31 0000111100 1401 343440 7760 bits
N/A 1401 341940 4000 bits
0000111100 1401 342990 1240 bits
32 - - -
- - -
- - -
33 0000111111 1401 343440 240 bits
N/A 1401 343440 4880 bits
0000111110 1401 343140 640 bits
34 0000110001 1401 339150 5400 bits
N/A 1401 335220 2040 bits
0000110001 1401 337770 2000 bits
36 0000101111 1401 333840 240 bits
N/A 1401 333780 3720 bits
0000101111 1401 333810 200 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