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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]

1408 187500

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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0208 36F15 0215 30F15 0208 2515
Key 183ed74ee00e29d32c3dd79f3612ef64
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0408 28F15 0415 06F15 0408 1215
Key 183ed74ee00e29d32c3dd79f3612ef64
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1008 12F15 1015 28F15 1008 0615
Key 183ed74ee00e29d32c3dd79f3612ef64
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1108 36F15 1115 12F15 1108 2815
Key 183ed74ee00e29d32c3dd79f3612ef64
SVID 12
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 1908 12F15 1915 28F15 1908 2915
Key 183ed74ee00e29d32c3dd79f3612ef64
SVID 25
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
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 3408 15F15 3415 36F15 3408 2515
Key 183ed74ee00e29d32c3dd79f3612ef64
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 0000111001 1408 187470 280 bits
N/A 1408 187440 6440 bits
0000111000 1408 187170 400 bits
03 0000101001 1408 177960 400 bits
N/A 1408 177900 920 bits
0000101001 1408 177930 360 bits
04 0000111001 1408 187470 280 bits
N/A 1408 187440 360 bits
0000111000 1408 187170 320 bits
05 0000100100 1408 174780 160 bits
N/A 1408 174720 840 bits
0000100100 1408 174750 120 bits
06 0000010101 1408 169710 17040 bits
N/A 1408 165900 10400 bits
0000010101 1408 169710 5640 bits
07 0000110000 1408 181950 40 bits
N/A 1408 181980 1800 bits
0000110000 1408 182190 80 bits
08 0000101101 1408 183990 6600 bits
N/A 1408 180000 4120 bits
0000101101 1408 182490 1360 bits
09 0000011011 1408 173070 3880 bits
N/A 1408 169680 10080 bits
0000011011 1408 169710 600 bits
10 0000111001 1408 187470 280 bits
N/A 1408 187440 7240 bits
0000111000 1408 187170 680 bits
11 0000111001 1408 187470 280 bits
N/A 1408 187440 4320 bits
0000111000 1408 187170 680 bits
12 0000110101 1408 187470 12000 bits
N/A 1408 185340 3040 bits
0000110101 1408 187170 2600 bits
13 0000010100 1408 165390 440 bits
N/A 1408 165360 5280 bits
0000010100 1408 165390 440 bits
14 - - -
- - -
- - -
15 0000000110 1408 161100 7560 bits
N/A 1408 157080 1480 bits
0000000110 1408 158730 1560 bits
16 0000111000 1408 187470 1160 bits
N/A 1408 186720 5920 bits
0000111000 1408 187050 320 bits
18 - - -
- - -
- - -
19 0000111001 1408 187470 280 bits
N/A 1408 187440 440 bits
0000111000 1408 187170 480 bits
21 0000000111 1408 161250 14160 bits
N/A 1408 157440 12240 bits
0000000111 1408 160950 6560 bits
23 0000011011 1408 169950 720 bits
N/A 1408 169200 13440 bits
0000011010 1408 169230 760 bits
25 0000111000 1408 187470 1280 bits
N/A 1408 187020 3760 bits
0000111000 1408 187050 520 bits
26 0000100000 1408 172560 400 bits
N/A 1408 172560 10760 bits
0000100000 1408 172620 480 bits
27 0001110111 1408 151950 5240 bits
N/A 1408 148260 6240 bits
0001110111 1408 151770 1280 bits
28 0000111000 1408 187470 3480 bits
N/A 1408 186660 1000 bits
0000111000 1408 187170 240 bits
29 0000111000 1408 187470 1600 bits
N/A 1408 186660 1120 bits
0000111000 1408 186690 40 bits
30 0000111000 1408 187470 1680 bits
N/A 1408 186600 680 bits
0000111000 1408 187050 320 bits
31 0000100111 1408 179670 3880 bits
N/A 1408 176580 2080 bits
0000100111 1408 176610 200 bits
32 0000101010 1408 182550 10240 bits
N/A 1408 178560 1120 bits
0000101010 1408 180030 2360 bits
33 0000101101 1408 180510 600 bits
N/A 1408 180480 3000 bits
0000101101 1408 180510 600 bits
34 0000111001 1408 187470 280 bits
N/A 1408 187440 1320 bits
0000111000 1408 187170 680 bits
36 0000111000 1408 187470 2040 bits
N/A 1408 187020 4520 bits
0000111000 1408 187170 680 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