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]

1393 155190

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 9
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 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 0611 16F15 0415 0611 3115 0415
Key f06d91c14a8a08f23c3cbcef61da306e
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0911 16F15 3115 0911 0415 3115
Key f06d91c14a8a08f23c3cbcef61da306e
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1511 03F15 2115 1511 1311 2115
Key f06d91c14a8a08f23c3cbcef61da306e
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2311 13F11 0415 2311 3115 0415
Key f06d91c14a8a08f23c3cbcef61da306e
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 3411 21F15 0515 3411 0315 0515
Key f06d91c14a8a08f23c3cbcef61da306e
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3611 16F15 0515 3611 1115 0515
Key f06d91c14a8a08f23c3cbcef61da306e

Authenticated Data

02 0001110010 1393 149520 5720 bits
N/A 1393 145320 5280 bits
0001110010 1393 145350 120 bits
03 0001111110 1393 155160 6160 bits
N/A 1393 152760 1240 bits
0001111110 1393 152790 440 bits
04 0001111110 1393 155160 8800 bits
N/A 1393 152880 6440 bits
0001111110 1393 154830 3760 bits
05 0000000000 1393 155160 11000 bits
N/A 1393 153180 4480 bits
0000000000 1393 154830 2320 bits
06 0000000011 1393 155160 400 bits
N/A 1393 155160 10600 bits
0000000010 1393 154860 800 bits
07 0001011000 1393 130170 640 bits
N/A 1393 130140 2200 bits
0001011000 1393 130170 680 bits
08 - - -
- - -
- - -
09 0000000011 1393 155160 400 bits
N/A 1393 155160 4120 bits
0000000010 1393 154860 800 bits
10 0001111000 1393 149100 320 bits
N/A 1393 149040 8880 bits
0001111000 1393 149070 280 bits
11 0000000000 1393 155160 2600 bits
N/A 1393 153180 6480 bits
0000000000 1393 153180 80 bits
12 0001110001 1393 144810 200 bits
N/A 1393 144840 3600 bits
0001110001 1393 144840 240 bits
13 - - -
- - -
- - -
14 - - -
- - -
- - -
15 0000000011 1393 155160 400 bits
N/A 1393 155160 3600 bits
0000000010 1393 154860 800 bits
16 0001100001 1393 139230 11440 bits
N/A 1393 135540 1760 bits
0001100001 1393 139230 3280 bits
18 - - -
- - -
- - -
19 0001110010 1393 146400 1120 bits
N/A 1393 145440 3960 bits
0001110010 1393 145470 240 bits
21 0001111101 1393 155160 10120 bits
- - -
0001111101 1393 154830 1800 bits
23 0000000011 1393 155160 400 bits
N/A 1393 155160 1200 bits
0000000010 1393 154860 800 bits
25 0001101000 1393 141870 2840 bits
N/A 1393 139200 4080 bits
0001100111 1393 139230 760 bits
26 - - -
- - -
- - -
27 0001111010 1393 150450 320 bits
N/A 1393 150120 1840 bits
0001111010 1393 150450 200 bits
28 - - -
- - -
- - -
29 0001100100 1393 138570 2800 bits
N/A 1393 136800 3560 bits
0001100011 1393 136830 760 bits
30 0001110011 1393 149610 5840 bits
N/A 1393 145920 2280 bits
0001110011 1393 149610 1800 bits
31 0000000000 1393 155160 5920 bits
N/A 1393 130140 280 bits
0000000000 1393 154830 160 bits
32 - - -
- - -
- - -
33 0001011111 1393 138210 5880 bits
N/A 1393 134160 640 bits
0001011111 1393 134190 440 bits
34 0000000011 1393 155160 400 bits
N/A 1393 155160 3840 bits
0000000010 1393 154860 800 bits
36 0000000011 1393 155160 400 bits
N/A 1393 155160 7560 bits
0000000010 1393 154860 800 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