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]

1414 250230

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 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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 32F15 0215 0715 0815 0215
Key 133efe26f24adadea111ab3f734f1432
SVID 8
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 1015 31F15 1615 1015 1215 1615
Key 133efe26f24adadea111ab3f734f1432
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
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 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2515 02F15 1115 2515 1215 1115
Key 133efe26f24adadea111ab3f734f1432
SVID 32
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 3615 09F15 1115 3615 3415 1115
Key 133efe26f24adadea111ab3f734f1432

Authenticated Data

02 0000100010 1414 250200 760 bits
N/A 1414 250080 2520 bits
0000100010 1414 249900 320 bits
03 0000100001 1414 250200 1360 bits
N/A 1414 249480 6000 bits
0000100001 1414 249510 600 bits
04 0000001001 1414 234810 160 bits
N/A 1414 234720 4680 bits
0000001001 1414 234780 160 bits
05 0000011110 1414 247290 40 bits
N/A 1414 247260 8240 bits
0000011101 1414 247260 800 bits
06 0000001010 1414 241560 12280 bits
N/A 1414 235740 6760 bits
0000001010 1414 240870 3560 bits
07 0000100010 1414 250200 720 bits
N/A 1414 250200 1080 bits
0000100010 1414 249900 320 bits
08 0000011111 1414 250200 5320 bits
N/A 1414 248280 2800 bits
0000011111 1414 249870 1080 bits
09 0000010011 1414 244830 7280 bits
N/A 1414 240840 7000 bits
0000010011 1414 244830 760 bits
10 0000100010 1414 250200 720 bits
N/A 1414 250200 4920 bits
0000100010 1414 249900 320 bits
11 0000011111 1414 250200 5520 bits
N/A 1414 248220 3000 bits
0000011111 1414 249870 960 bits
12 0000100001 1414 250200 2720 bits
N/A 1414 249120 2920 bits
0000100001 1414 249390 280 bits
13 0000000101 1414 240750 13120 bits
N/A 1414 232260 2280 bits
0000000101 1414 240330 280 bits
14 - - -
- - -
- - -
15 0000000000 1414 232290 5000 bits
N/A 1414 229740 2320 bits
0000000000 1414 232230 1440 bits
16 0000100001 1414 250200 1760 bits
N/A 1414 249060 3920 bits
0000100001 1414 249870 280 bits
18 - - -
- - -
- - -
19 0001111001 1414 226230 760 bits
N/A 1414 226200 1680 bits
0001111001 1414 226200 720 bits
21 0001111100 1414 231510 6280 bits
N/A 1414 227700 2560 bits
0001111100 1414 231510 2240 bits
23 0000001101 1414 237450 520 bits
N/A 1414 237420 5720 bits
0000001101 1414 237390 440 bits
25 0000100010 1414 250200 720 bits
N/A 1414 250200 4320 bits
0000100010 1414 249900 320 bits
26 0000010100 1414 244530 4680 bits
N/A 1414 241500 2240 bits
0000010100 1414 243510 520 bits
27 0001101100 1414 222150 5040 bits
N/A 1414 218280 200 bits
0001101100 1414 218310 480 bits
28 0000000011 1414 231210 200 bits
N/A 1414 231180 2480 bits
0000000011 1414 231210 200 bits
29 0001101000 1414 217770 3320 bits
N/A 1414 215640 6400 bits
0001101000 1414 217770 960 bits
30 0001100010 1414 211890 40 bits
N/A 1414 211860 2280 bits
0001100010 1414 211890 40 bits
31 0000011101 1414 247140 640 bits
N/A 1414 247140 8320 bits
0000011101 1414 247110 600 bits
32 0000100001 1414 250170 2320 bits
N/A 1414 249120 2360 bits
0000100001 1414 249510 360 bits
33 0000011110 1414 250200 3920 bits
N/A 1414 247560 2200 bits
0000011110 1414 249870 840 bits
34 0001111101 1414 230910 4520 bits
N/A 1414 228240 1840 bits
0001111101 1414 229770 1200 bits
36 0000100010 1414 250200 720 bits
N/A 1414 250200 1920 bits
0000100010 1414 249900 320 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