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]

1397 25500

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 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 0508 16F15 0515 31F15 0508 1508
Key cecf83a326855d0fbdbd34e532a029b7
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 1800 31F15 1800 23F15 1800 1615
Key cecf83a326855d0fbdbd34e532a029b7
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 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2608 23F15 2615 13F15 2608 3115
Key cecf83a326855d0fbdbd34e532a029b7
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 3308 23F15 3315 12F15 3308 2115
Key cecf83a326855d0fbdbd34e532a029b7

Authenticated Data

02 0001110110 1397 450 440 bits
N/A 1397 360 7480 bits
0001110110 1397 360 400 bits
03 0001100001 1396 595830 15280 bits
N/A 1396 592260 6680 bits
0001100001 1396 595830 4360 bits
04 0000100100 1397 22500 320 bits
N/A 1397 22500 4880 bits
0000100100 1397 22500 280 bits
05 0000101001 1397 25470 280 bits
N/A 1397 25440 2880 bits
0000101000 1397 25170 680 bits
06 0000100110 1397 24030 760 bits
N/A 1397 24000 7880 bits
0000100110 1397 24030 720 bits
07 0000001001 1397 6510 600 bits
N/A 1397 6480 3880 bits
0000001001 1397 6510 560 bits
08 0001110011 1396 603570 680 bits
N/A 1396 603540 11560 bits
0001110011 1396 603570 680 bits
09 0000100011 1397 25260 13480 bits
N/A 1397 21900 2760 bits
0000100011 1397 24030 2960 bits
10 0001110110 1397 2790 3680 bits
N/A 1397 180 3800 bits
0001110110 1397 870 800 bits
11 0001110101 1397 3750 7160 bits
N/A 1396 564840 80 bits
0001110101 1397 3690 80 bits
12 0001110010 1397 2010 8720 bits
N/A 1396 602940 1320 bits
0001110010 1396 603570 1080 bits
13 0000100111 1397 25470 2080 bits
N/A 1397 24540 10200 bits
0000100111 1397 24570 680 bits
14 - - -
- - -
- - -
15 0000100011 1397 23490 3000 bits
N/A 1397 21840 8640 bits
0000100011 1397 23490 360 bits
16 0000101000 1397 25470 160 bits
N/A 1396 586620 2680 bits
0001010111 1396 589950 1240 bits
18 - - -
- - -
- - -
19 0000011101 1397 22110 11760 bits
N/A 1397 18120 6240 bits
0000011101 1397 21990 2120 bits
21 0000100111 1397 25440 2760 bits
N/A 1397 24300 13600 bits
0000100111 1397 24690 760 bits
23 0000101000 1397 25470 2960 bits
N/A 1397 24660 5200 bits
0000101000 1397 25170 600 bits
25 0001101000 1396 596610 200 bits
N/A 1396 596580 4520 bits
0001101000 1396 596610 200 bits
26 0000101001 1397 25470 280 bits
N/A 1397 25440 8080 bits
0000101000 1397 25170 680 bits
27 0000011111 1397 19500 320 bits
N/A 1397 19500 6760 bits
0000011111 1397 19500 320 bits
28 0000100001 1397 24000 9120 bits
N/A 1397 20820 3000 bits
0000100001 1397 22470 1360 bits
29 0000010011 1397 12270 280 bits
N/A 1397 12240 3480 bits
0000010011 1397 12270 280 bits
30 0000001111 1397 10260 320 bits
N/A 1397 9840 4200 bits
0000001111 1397 9870 240 bits
31 0000100101 1397 25470 11360 bits
N/A 1397 23220 2560 bits
0000100101 1397 25170 2880 bits
32 - - -
- - -
- - -
33 0000101001 1397 25470 280 bits
N/A 1397 25440 1880 bits
0000101000 1397 25170 400 bits
34 0000010011 1397 16050 9640 bits
N/A 1397 12000 1920 bits
0000010011 1397 16050 400 bits
36 0000000101 1397 7620 9960 bits
N/A 1397 3660 440 bits
0000000101 1397 4710 720 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