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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 164550

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0203 19F03 3615 0203 1015 3615
Key fec966610a11730691fa709622a698da
SVID 7
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 1103 12F15 1015 1103 3615 1015
Key fec966610a11730691fa709622a698da
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2503 10F15 3615 2503 0915 3615
Key fec966610a11730691fa709622a698da
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2903 10F15 1903 2903 0715 1903
Key fec966610a11730691fa709622a698da
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3003 08F15 0715 3003 3615 0715
Key fec966610a11730691fa709622a698da
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3403 08F15 3615 3403 3215 3615
Key fec966610a11730691fa709622a698da
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000010011 1416 164520 80 bits
N/A 1416 164520 11120 bits
0000010010 1416 164220 480 bits
03 0000001001 1416 158700 320 bits
N/A 1416 158640 5960 bits
0000001001 1416 158670 280 bits
04 0001100111 1416 139170 880 bits
N/A 1416 138840 2320 bits
0001100111 1416 138840 240 bits
05 0001111101 1416 154500 3520 bits
N/A 1416 152340 7760 bits
0001111101 1416 152370 480 bits
06 0001101110 1416 146790 6520 bits
N/A 1416 142800 4120 bits
0001101110 1416 144510 520 bits
07 0000010010 1416 164520 1240 bits
N/A 1416 164220 5200 bits
0000010010 1416 164220 480 bits
08 0000001111 1416 162600 680 bits
N/A 1416 162600 8480 bits
0000001111 1416 162600 680 bits
09 0001110000 1416 147750 8240 bits
N/A 1416 144480 3640 bits
0001110000 1416 145410 960 bits
10 0000010001 1416 164520 4080 bits
N/A 1416 163380 6120 bits
0000010001 1416 164190 1040 bits
11 0000010011 1416 164520 80 bits
N/A 1416 164520 4680 bits
0000010010 1416 164220 480 bits
12 0000001111 1416 162300 280 bits
N/A 1416 162300 8760 bits
0000001111 1416 162300 280 bits
13 0001101100 1416 142170 600 bits
N/A 1416 142140 2840 bits
0001101100 1416 142170 640 bits
14 - - -
- - -
- - -
15 0001100111 1416 139200 720 bits
N/A 1416 139200 2040 bits
0001100111 1416 139200 720 bits
16 0000001011 1416 160680 680 bits
N/A 1416 159720 8800 bits
0000001011 1416 159750 120 bits
18 - - -
- - -
- - -
19 0001010111 1416 129180 160 bits
N/A 1416 129120 9400 bits
0001010111 1416 129150 120 bits
21 0001011011 1416 132030 80 bits
N/A 1416 132000 7360 bits
0001011011 1416 132030 80 bits
23 0001101001 1416 143760 8680 bits
N/A 1416 139920 2160 bits
0001101001 1416 143430 3440 bits
25 0000010011 1416 164520 80 bits
N/A 1416 164520 8320 bits
0000010010 1416 164220 480 bits
26 0001110101 1416 147630 760 bits
N/A 1416 147600 4760 bits
0001110101 1416 147600 720 bits
27 0001001110 1416 124260 800 bits
N/A 1416 124260 5000 bits
0001001110 1416 124260 800 bits
28 0001100000 1416 134700 320 bits
N/A 1416 134640 1720 bits
0001100000 1416 134670 280 bits
29 0000010011 1416 164520 80 bits
N/A 1416 164520 840 bits
0000010001 1416 164190 760 bits
30 0000010011 1416 164520 80 bits
N/A 1416 164520 3040 bits
0000010010 1416 164220 480 bits
31 0001110111 1416 152310 14760 bits
N/A 1416 148500 4800 bits
0001110111 1416 150390 2560 bits
32 0000001101 1416 161070 280 bits
N/A 1416 161040 5600 bits
0000001101 1416 161070 240 bits
33 0000000010 1416 154470 240 bits
N/A 1416 154440 4120 bits
0000000010 1416 154470 240 bits
34 0000010011 1416 164520 80 bits
N/A 1416 164520 5360 bits
0000010010 1416 164220 480 bits
36 0000010010 1416 164520 2200 bits
N/A 1416 164220 4000 bits
0000010010 1416 164220 480 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