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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]

1398 206640

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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0606 09F15 0615 04F15 0606 1215
Key 49da19c24a7e4b60fc417a88dd7c9db2
SVID 9
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 1006 28F15 1015 04F15 1006 1215
Key 49da19c24a7e4b60fc417a88dd7c9db2
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1106 28F15 1115 04F15 1106 3615
Key 49da19c24a7e4b60fc417a88dd7c9db2
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1906 28F15 1915 12F15 1906 0415
Key 49da19c24a7e4b60fc417a88dd7c9db2
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2506 02F15 2515 36F15 2506 0915
Key 49da19c24a7e4b60fc417a88dd7c9db2
SVID 28
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 3406 02F15 3415 15F15 3406 3615
Key 49da19c24a7e4b60fc417a88dd7c9db2
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 0001010111 1398 206610 2680 bits
N/A 1398 205620 4160 bits
0001010111 1398 206310 1000 bits
03 0001000100 1398 194130 360 bits
N/A 1398 194100 5360 bits
0001000100 1398 194100 320 bits
04 0001010011 1398 206610 15360 bits
N/A 1398 180960 2400 bits
0001010011 1398 203190 40 bits
05 0001000000 1398 191730 360 bits
N/A 1398 191700 8200 bits
0001000000 1398 191730 360 bits
06 0001011001 1398 206610 200 bits
N/A 1398 206580 3240 bits
0001011000 1398 206310 600 bits
07 0001001011 1398 198420 360 bits
N/A 1398 198360 800 bits
0001001011 1398 198360 280 bits
08 0001001010 1398 197520 80 bits
N/A 1398 197460 4360 bits
0001001010 1398 197490 40 bits
09 0001010011 1398 206610 560 bits
N/A 1398 187200 5720 bits
0000111000 1398 187200 720 bits
10 0001011001 1398 206610 200 bits
N/A 1398 206580 8360 bits
0001011000 1398 206310 600 bits
11 0001011001 1398 206610 200 bits
N/A 1398 206580 7040 bits
0001011000 1398 206310 600 bits
12 0001010001 1398 206610 22560 bits
N/A 1398 201960 8240 bits
0001010001 1398 205650 5920 bits
13 0000110000 1398 181950 80 bits
N/A 1398 181920 4480 bits
0000110000 1398 181920 80 bits
14 - - -
- - -
- - -
15 0000011101 1398 174270 10360 bits
N/A 1398 170400 2160 bits
0000011101 1398 174270 2240 bits
16 0001010101 1398 204240 240 bits
N/A 1398 204180 9560 bits
0001010101 1398 204270 240 bits
18 - - -
- - -
- - -
19 0001011001 1398 206610 200 bits
N/A 1398 206580 1640 bits
0001011000 1398 206310 600 bits
21 0000100011 1398 178050 9440 bits
N/A 1398 174060 400 bits
0000100011 1398 178050 2960 bits
23 0000110111 1398 186240 200 bits
N/A 1398 186120 8240 bits
0000110111 1398 186180 160 bits
25 0001011001 1398 206610 200 bits
N/A 1398 206580 11360 bits
0001011000 1398 206310 600 bits
26 0000111100 1398 189630 760 bits
N/A 1398 189600 6080 bits
0000111100 1398 189600 720 bits
27 0000010111 1398 167430 720 bits
N/A 1398 167340 4600 bits
0000010111 1398 167400 680 bits
28 0001010101 1398 206610 12200 bits
N/A 1398 204000 1960 bits
0001010101 1398 206310 2400 bits
29 0001010001 1398 201720 40 bits
N/A 1398 201720 160 bits
0001010000 1398 201660 80 bits
30 0001010001 1398 206610 13440 bits
N/A 1398 202140 680 bits
0001010001 1398 205290 3720 bits
31 0001000111 1398 195750 120 bits
N/A 1398 195660 8680 bits
0001000111 1398 195750 120 bits
32 - - -
- - -
- - -
33 0001000101 1398 198390 6840 bits
N/A 1398 194700 6320 bits
0001000101 1398 194730 360 bits
34 0001011001 1398 206610 200 bits
N/A 1398 206580 2280 bits
0001011000 1398 206310 600 bits
36 0001010111 1398 206610 3000 bits
N/A 1398 205620 7320 bits
0001010111 1398 206130 760 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.

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
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