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]

1416 251460

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 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0815 25F15 0815 02F15 0815 0315
Key 994e175e27f5d39e3180e8c130743664
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 06F15 1115 3115
Key 994e175e27f5d39e3180e8c130743664
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags - - 1215 31F15 1215 3315
Key 994e175e27f5d39e3180e8c130743664
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 33F15 1400 31F15 1400 1015
Key 994e175e27f5d39e3180e8c130743664
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1615 10F15 1615 25F15 1615 3315
Key 994e175e27f5d39e3180e8c130743664
SVID 25
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 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 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3215 03F15 3215 02F15 3215 2515
Key 994e175e27f5d39e3180e8c130743664
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001100100 1416 213660 760 bits
N/A 1416 213660 7880 bits
0001100100 1416 213660 760 bits
03 0000100000 1416 251430 10680 bits
N/A 1416 248400 4680 bits
0000100000 1416 251130 1760 bits
04 0000010011 1416 244710 8320 bits
N/A 1416 240960 6920 bits
0000010011 1416 240990 440 bits
05 0000100010 1416 249960 400 bits
N/A 1416 249960 9040 bits
0000100010 1416 249960 400 bits
06 0000011001 1416 244410 200 bits
N/A 1416 244380 7840 bits
0000011001 1416 244410 160 bits
07 0001101000 1416 219690 13240 bits
N/A 1416 215940 10480 bits
0001101000 1416 219690 3000 bits
08 0000100100 1416 251430 760 bits
N/A 1416 251400 1840 bits
0000100100 1416 251130 360 bits
09 0000011100 1416 246570 680 bits
N/A 1416 246540 6240 bits
0000011100 1416 246540 640 bits
10 0000100100 1416 251430 2520 bits
N/A 1416 250860 1960 bits
0000100100 1416 251130 440 bits
11 0000100100 1416 251430 760 bits
N/A 1416 251400 3280 bits
0000100100 1416 251130 360 bits
12 0000100100 1416 251430 760 bits
N/A 1416 251400 3800 bits
0000100100 1416 251130 360 bits
13 0000011000 1416 243780 160 bits
N/A 1416 243660 8320 bits
0000011000 1416 243750 120 bits
14 - - -
- - -
- - -
15 0000001011 1416 236460 760 bits
N/A 1416 236400 3080 bits
0000001011 1416 236340 600 bits
16 0000100100 1416 251430 760 bits
N/A 1416 251400 7680 bits
0000100100 1416 251130 360 bits
18 - - -
- - -
- - -
19 0000000110 1416 237270 17200 bits
N/A 1416 233340 7000 bits
0000000110 1416 237210 3480 bits
21 0000010001 1416 239880 560 bits
N/A 1416 239880 9640 bits
0000010001 1416 239850 520 bits
23 0000100010 1416 249780 160 bits
N/A 1416 249780 14560 bits
0000100010 1416 249780 160 bits
25 0000011111 1416 251430 15560 bits
N/A 1416 248280 2080 bits
0000011111 1416 251130 2880 bits
26 0000100000 1416 251430 6920 bits
N/A 1416 248520 9880 bits
0000100000 1416 250350 1200 bits
27 0001111101 1416 231150 7840 bits
N/A 1416 228480 4440 bits
0001111101 1416 231150 3240 bits
28 0000001101 1416 241230 13200 bits
N/A 1416 237240 6920 bits
0000001101 1416 240990 1240 bits
29 0001111011 1416 228690 3600 bits
N/A 1416 227220 3600 bits
0001111011 1416 227250 520 bits
30 0001101111 1416 222450 3880 bits
N/A 1416 219660 1200 bits
0001101111 1416 222450 680 bits
31 0000100000 1416 251430 15200 bits
N/A 1416 248460 6800 bits
0000100000 1416 250890 3440 bits
32 0000100100 1416 251430 760 bits
N/A 1416 251400 1840 bits
0000100100 1416 251130 360 bits
33 0000100000 1416 251430 13120 bits
N/A 1416 248400 4040 bits
0000100000 1416 251130 2800 bits
34 0000000000 1416 229740 600 bits
N/A 1416 229680 1640 bits
0000000001 1416 229920 40 bits
36 0001110111 1416 228660 9920 bits
N/A 1416 224940 1560 bits
0001110111 1416 225870 1280 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 4 ADKD types are: ADKD0, ADKD2, 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 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 or may not authenticate their own navigation message (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