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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]

1350 293340

Authenticated NMA Status
NMAS TEST CID 0 CPKS NOMINAL
Tesla Chain in Force
PKID 1 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 1 NPKT ECDSA_P256 MID 0

OSNMA Tag Verification Inputs

Satellites in View 12
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 33 34 36
Satellites Transmitting OSNMA 6
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 29 30 31 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 0415 31F15 0415 09F15 0415 2415
Key 35a2c28a7c4ddfc06ef850b4ea92433d
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0615 31F15 0615 09F15 0615 2415
Key 35a2c28a7c4ddfc06ef850b4ea92433d
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1015 11F15 1015 29F15 1015 0215
Key 35a2c28a7c4ddfc06ef850b4ea92433d
SVID 11
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 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 33F15 1915 29F15 1915 1115
Key 35a2c28a7c4ddfc06ef850b4ea92433d
SVID 24
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 16F15 2515 11F15 2515 2415
Key 35a2c28a7c4ddfc06ef850b4ea92433d
SVID 29
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3615 02F15 3615 16F15 3615 1115
Key 35a2c28a7c4ddfc06ef850b4ea92433d

Authenticated Data

01 - - -
- - -
- - -
02 0001011110 1350 293310 12200 bits
N/A 1350 245760 9440 bits
0001011110 1350 289170 960 bits
03 0001010100 1350 280260 800 bits
N/A 1350 280260 720 bits
0001010101 1350 280350 40 bits
04 0001101010 1350 293310 600 bits
N/A 1350 293280 5280 bits
0001101010 1350 293010 200 bits
05 0001001100 1350 279360 6080 bits
N/A 1350 275160 3440 bits
0001001100 1350 275910 920 bits
06 0001101010 1350 293310 120 bits
N/A 1350 293280 2840 bits
0001001001 1350 273510 560 bits
07 0001100011 1350 289260 800 bits
N/A 1350 289260 4680 bits
0001100011 1350 289260 800 bits
08 0001011001 1350 289260 10160 bits
N/A 1350 279540 240 bits
0001011001 1350 287730 720 bits
09 0001000111 1350 282000 18640 bits
N/A 1350 271980 3240 bits
0001000111 1350 281970 2720 bits
10 0001101010 1350 293310 600 bits
N/A 1350 293280 10880 bits
0001101010 1350 293010 200 bits
11 0001100000 1350 293310 23360 bits
N/A 1350 287160 4080 bits
0001100000 1350 293010 7120 bits
12 0001001011 1349 507060 6280 bits
N/A 1349 503340 4840 bits
0001001011 1349 506010 2280 bits
13 0001001101 1350 275820 360 bits
N/A 1350 275640 9280 bits
0001001101 1350 275730 360 bits
14 - - -
- - -
- - -
15 0001000000 1350 267810 160 bits
N/A 1350 267780 5280 bits
0001000000 1350 267780 120 bits
16 0001100100 1350 293310 15960 bits
N/A 1350 289680 5200 bits
0001100100 1350 293010 2760 bits
18 - - -
- - -
- - -
19 0001101010 1350 293310 600 bits
N/A 1350 293280 4560 bits
0001101010 1350 293010 200 bits
20 - - -
- - -
- - -
21 0001001010 1350 273810 200 bits
N/A 1350 273780 9160 bits
0001001010 1350 273780 160 bits
22 - - -
- - -
- - -
23 0001010011 1350 282690 5080 bits
N/A 1350 279240 8720 bits
0001010011 1350 282690 560 bits
24 0001100100 1350 293280 8680 bits
N/A 1350 289740 5440 bits
0001100100 1350 289770 680 bits
25 0001101010 1350 293310 600 bits
N/A 1350 293280 2400 bits
0001101010 1350 293010 200 bits
26 0001011011 1350 284310 600 bits
N/A 1350 284280 12960 bits
0001011011 1350 284310 560 bits
27 0000111001 1350 269490 24760 bits
N/A 1350 263280 1720 bits
0000111001 1350 268350 7040 bits
29 0001100010 1350 293310 15400 bits
N/A 1350 288360 3440 bits
0001100010 1350 293010 6560 bits
30 0000101001 1350 254340 440 bits
N/A 1350 254340 3320 bits
0000101001 1350 254370 480 bits
31 0001011001 1350 292800 20560 bits
N/A 1350 282660 8520 bits
0001011001 1350 292770 1560 bits
33 0001101010 1350 293310 640 bits
N/A 1350 293220 12040 bits
0001101010 1350 293010 200 bits
34 0000101111 1350 267600 20760 bits
N/A 1350 257640 4480 bits
0000101111 1350 266070 4880 bits
36 0001101010 1350 293310 600 bits
N/A 1350 293280 2240 bits
0001101010 1350 293010 200 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.

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