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]

1398 321090

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 4
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0601 34F15 0415 0601 2815 0415
Key 82d53d82c08eb97ddd35bf4b61013f23
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0901 31F15 3415 0901 0415 3415
Key 82d53d82c08eb97ddd35bf4b61013f23
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1501 04F15 2715 1501 3415 2715
Key 82d53d82c08eb97ddd35bf4b61013f23
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2101 34F15 2715 2101 0415 2715
Key 82d53d82c08eb97ddd35bf4b61013f23
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2301 34F15 0415 2301 2815 0415
Key 82d53d82c08eb97ddd35bf4b61013f23
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3601 31F15 0515 3601 1115 0515
Key 82d53d82c08eb97ddd35bf4b61013f23

Authenticated Data

02 0000000100 1398 311220 5680 bits
N/A 1398 308100 1000 bits
0000000100 1398 308310 440 bits
03 0001011011 1398 286590 2880 bits
N/A 1398 245820 12000 bits
0001011011 1398 286590 280 bits
04 0000010100 1398 321060 18000 bits
N/A 1398 317880 6480 bits
0000010100 1398 320730 1520 bits
05 0000010110 1398 321060 6280 bits
N/A 1398 318840 3760 bits
0000010110 1398 320730 1200 bits
06 0000011001 1398 321060 800 bits
N/A 1398 321060 5920 bits
0000011001 1398 320760 400 bits
07 0001110101 1398 300090 720 bits
N/A 1398 299820 8680 bits
0001110101 1398 299850 520 bits
08 0001101000 1398 296070 9000 bits
N/A 1398 291900 3080 bits
0001101000 1398 294390 760 bits
09 0000011001 1398 321060 800 bits
N/A 1398 321060 4920 bits
0000011001 1398 320760 400 bits
10 0000010110 1398 319110 600 bits
N/A 1398 319080 4840 bits
0000010110 1398 319110 600 bits
11 0000011001 1398 321060 1040 bits
N/A 1398 320400 3960 bits
0000011000 1398 320430 760 bits
12 0000010000 1398 315600 720 bits
N/A 1398 315600 2360 bits
0000010000 1398 315570 680 bits
13 0001011111 1398 289410 5080 bits
N/A 1398 286320 9840 bits
0001011111 1398 289410 1880 bits
14 - - -
- - -
- - -
15 0000011001 1398 321060 760 bits
N/A 1398 321060 400 bits
0000011001 1398 320760 400 bits
16 0001111110 1398 304890 40 bits
N/A 1398 304860 400 bits
0001111110 1398 304890 40 bits
18 - - -
- - -
- - -
19 0000010000 1398 318870 7600 bits
N/A 1398 315060 4560 bits
0000010000 1398 317490 1520 bits
21 0000011001 1398 321060 800 bits
N/A 1398 321060 2120 bits
0000011001 1398 320760 400 bits
23 0000011001 1398 321060 800 bits
N/A 1398 321060 2040 bits
0000011001 1398 320760 400 bits
25 0000000100 1398 308460 800 bits
N/A 1398 308460 520 bits
0000000100 1398 308430 760 bits
26 0001110000 1398 296640 200 bits
N/A 1398 296640 11520 bits
0001110000 1398 296640 200 bits
27 0000001001 1398 314790 8040 bits
N/A 1398 273900 4760 bits
0000001001 1398 312810 1080 bits
28 0000010100 1398 321060 13520 bits
N/A 1398 317700 3640 bits
0000010100 1398 320730 4040 bits
29 0000000100 1398 310410 4040 bits
N/A 1398 308160 2360 bits
0000000100 1398 310410 400 bits
30 0000001101 1398 313530 360 bits
N/A 1398 313500 2120 bits
0000001101 1398 313530 360 bits
31 0000010100 1398 321060 3680 bits
N/A 1398 296220 4960 bits
0000010100 1398 320370 520 bits
32 - - -
- - -
- - -
33 0000000001 1398 306480 560 bits
N/A 1398 306480 1080 bits
0000000001 1398 306450 520 bits
34 0000010110 1398 321060 9360 bits
N/A 1398 318720 2960 bits
0000010110 1398 320730 1080 bits
36 0000011001 1398 321060 800 bits
N/A 1398 321060 6120 bits
0000011001 1398 320760 400 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