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]

1384 524580

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 5
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 0504 09F15 0515 34F15 0504 0215
Key 5c91abb184db11efb670e94c506c8988
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1004 12F15 1015 16F15 1004 2515
Key 5c91abb184db11efb670e94c506c8988
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1104 09F15 1115 12F15 1104 1615
Key 5c91abb184db11efb670e94c506c8988
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
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 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 3104 12F15 3115 23F15 3104 1615
Key 5c91abb184db11efb670e94c506c8988
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 3604 09F15 3615 06F04 3604 3415
Key 5c91abb184db11efb670e94c506c8988

Authenticated Data

02 0001010110 1384 512040 4800 bits
N/A 1384 468420 240 bits
0001010110 1384 511290 520 bits
03 0000111001 1384 492510 600 bits
N/A 1384 492480 5280 bits
0000111001 1384 492480 560 bits
04 0001101111 1384 524550 120 bits
N/A 1384 524520 1360 bits
0001101110 1384 524250 520 bits
05 0001101111 1384 524550 120 bits
N/A 1384 524520 240 bits
0001101110 1384 524250 40 bits
06 0001101111 1384 524550 320 bits
N/A 1384 524460 1080 bits
0001101110 1384 524250 240 bits
07 0001010010 1384 511410 6600 bits
N/A 1384 507360 9080 bits
0001010010 1384 511410 1600 bits
08 0001001000 1384 501240 240 bits
N/A 1384 501240 8360 bits
0001001000 1384 501240 240 bits
09 0001101100 1384 524550 8920 bits
N/A 1384 522780 1280 bits
0001101100 1384 524250 2080 bits
10 0001101111 1384 524550 120 bits
N/A 1384 524520 1000 bits
0001101110 1384 524250 240 bits
11 0001101111 1384 524550 120 bits
N/A 1384 524520 1080 bits
0001101110 1384 524250 520 bits
12 0001101010 1384 522000 640 bits
N/A 1384 522000 1840 bits
0001101010 1384 522030 600 bits
13 0001000100 1384 498870 240 bits
N/A 1384 498840 10440 bits
0001000100 1384 498840 200 bits
14 - - -
- - -
- - -
15 0000110001 1384 491550 20000 bits
N/A 1384 487560 6080 bits
0000110001 1384 491370 5800 bits
16 0001001010 1384 506730 10840 bits
N/A 1384 502740 2040 bits
0001001010 1384 503970 1080 bits
18 - - -
- - -
- - -
19 0001101111 1384 524550 120 bits
N/A 1384 524520 3560 bits
0001101110 1384 524250 520 bits
21 0001101000 1384 524550 13720 bits
N/A 1384 520680 280 bits
0001101000 1384 523710 3760 bits
23 0001101100 1384 524550 6880 bits
N/A 1384 522660 2280 bits
0001101100 1384 524250 520 bits
25 0001001111 1384 509070 7760 bits
N/A 1384 505200 1880 bits
0001001111 1384 509010 1920 bits
26 0001010011 1384 508230 760 bits
N/A 1384 508200 12800 bits
0001010011 1384 508230 760 bits
27 0001101100 1384 523080 160 bits
N/A 1384 522540 1040 bits
0001101100 1384 523050 80 bits
28 - - -
- - -
- - -
29 0001011111 1384 519090 12160 bits
N/A 1384 515220 9680 bits
0001011111 1384 518910 5040 bits
30 0001011011 1384 515430 2360 bits
N/A 1384 512880 2400 bits
0001011011 1384 512910 600 bits
31 0001101111 1384 524550 120 bits
N/A 1384 524520 1160 bits
0001101110 1384 524250 520 bits
32 - - -
- - -
- - -
33 0001100000 1384 515850 520 bits
N/A 1384 515880 13080 bits
0001100000 1384 515790 440 bits
34 0001101110 1384 524550 2120 bits
N/A 1384 523860 520 bits
0001101110 1384 523890 40 bits
36 0001101111 1384 524550 120 bits
N/A 1384 524520 3640 bits
0001101110 1384 524250 520 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