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]

1400 310830

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 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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0404 12F15 2815 0404 0615 2815
Key b1abd8436dbdcd626a426fb23a251118
SVID 6
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1115 12F15 1015 1115 2515 1015
Key b1abd8436dbdcd626a426fb23a251118
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1215 11F15 1915 1215 1015 1915
Key b1abd8436dbdcd626a426fb23a251118
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
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 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2915 12F15 1915 2915 3015 1915
Key b1abd8436dbdcd626a426fb23a251118
SVID 30
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 3315 29F15 1915 3315 2815 1915
Key b1abd8436dbdcd626a426fb23a251118

Authenticated Data

02 0001111110 1400 307230 2240 bits
N/A 1400 265500 3240 bits
0000111100 1400 269490 5520 bits
03 0001101011 1400 295050 5560 bits
N/A 1400 293100 3400 bits
0001101011 1400 294990 880 bits
04 0000001000 1400 310800 120 bits
N/A 1400 310800 80 bits
0001111101 1400 308490 1360 bits
05 0001100000 1400 288750 4720 bits
N/A 1400 283680 1080 bits
0001100000 1400 287490 160 bits
06 0000001000 1400 310800 240 bits
N/A 1400 310620 40 bits
0001010110 1400 280920 40 bits
07 0001111101 1400 310710 7560 bits
N/A 1400 304740 320 bits
0001111101 1400 310470 2000 bits
08 0001111000 1400 301770 680 bits
N/A 1400 301740 6440 bits
0001111000 1400 301770 680 bits
09 0001010010 1400 282330 9120 bits
N/A 1400 282720 40 bits
0001010010 1400 281190 1040 bits
10 0000001000 1400 310650 520 bits
N/A 1400 310620 3280 bits
0000001000 1400 310500 320 bits
11 0000000000 1400 310650 10880 bits
N/A 1400 305940 520 bits
0000000000 1400 310470 2280 bits
12 0001111101 1400 310770 23880 bits
N/A 1400 304380 80 bits
0001111101 1400 310470 5360 bits
13 0001110100 1400 299370 600 bits
N/A 1400 299280 7160 bits
0001110100 1400 299280 560 bits
14 - - -
- - -
- - -
15 0001100011 1400 292890 9000 bits
N/A 1400 288540 9400 bits
0001100011 1400 292770 1400 bits
16 0001111101 1400 308310 7040 bits
N/A 1400 304320 40 bits
0001111101 1400 305970 560 bits
18 - - -
- - -
- - -
19 0000001000 1400 310620 440 bits
N/A 1400 310500 3960 bits
0000001000 1400 310500 320 bits
21 0001100100 1400 293370 10480 bits
N/A 1400 289560 9160 bits
0001100100 1400 289590 440 bits
23 0001110100 1400 299430 760 bits
N/A 1400 299400 12480 bits
0001110100 1400 299430 760 bits
25 0000000011 1400 310620 3280 bits
N/A 1400 307200 1760 bits
0000000010 1400 307230 760 bits
26 0000000101 1400 308730 360 bits
N/A 1400 308700 2720 bits
0000000101 1400 308730 360 bits
27 0001011111 1400 286560 400 bits
N/A 1400 286560 12560 bits
0001011111 1400 286530 360 bits
28 0000000101 1400 310800 3640 bits
N/A 1400 308460 2560 bits
0000000101 1400 308490 40 bits
29 0000000010 1400 310710 5760 bits
N/A 1400 307140 1920 bits
0000000010 1400 307170 680 bits
30 0000001000 1400 310710 520 bits
N/A 1400 310680 320 bits
0000001000 1400 310500 280 bits
31 0001111011 1400 303480 560 bits
N/A 1400 303480 9080 bits
0001111011 1400 303480 560 bits
32 - - -
- - -
- - -
33 0000000010 1400 310500 8680 bits
N/A 1400 306840 480 bits
0000000010 1400 309390 2920 bits
34 0001010101 1400 280290 40 bits
N/A 1400 280260 7080 bits
0001010101 1400 280290 40 bits
36 0001000101 1400 274740 4520 bits
N/A 1400 270720 2600 bits
0001000101 1400 274530 160 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