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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 419460

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 5
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 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0515 16F15 0515 03F15 0515 0915
Key f999bc6c20a6c5f28e7dbd9404af634e
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
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 23
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 09F15 2515 0315
Key f999bc6c20a6c5f28e7dbd9404af634e
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2615 23F15 2615 08F15 2615 3215
Key f999bc6c20a6c5f28e7dbd9404af634e
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3115 23F15 3115 16F15 3115 1215
Key f999bc6c20a6c5f28e7dbd9404af634e
SVID 32
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 3315 23F15 3315 12F15 3315 0415
Key f999bc6c20a6c5f28e7dbd9404af634e

Authenticated Data

02 0000001011 1408 388350 120 bits
N/A 1408 388380 5680 bits
0000001011 1408 388410 200 bits
03 0000111100 1408 419430 5520 bits
N/A 1408 417660 1480 bits
0000111100 1408 417690 40 bits
04 0000111010 1408 419400 7480 bits
N/A 1408 416460 6960 bits
0000111010 1408 416490 40 bits
05 0000111110 1408 419430 760 bits
N/A 1408 419400 5040 bits
0000111110 1408 419130 360 bits
06 0000111110 1408 419430 760 bits
N/A 1408 419340 6560 bits
0000111110 1408 419130 360 bits
07 0000001101 1408 389790 400 bits
N/A 1408 389760 12920 bits
0000001101 1408 389790 400 bits
08 0001111101 1408 380880 560 bits
N/A 1408 380880 11080 bits
0001111101 1408 380880 560 bits
09 0000111100 1408 419430 7520 bits
N/A 1408 417780 10120 bits
0000111100 1408 419130 1040 bits
10 0000100000 1408 405270 10120 bits
N/A 1408 401280 4520 bits
0000100000 1408 404670 3520 bits
11 0000100110 1408 404730 320 bits
N/A 1408 404700 3600 bits
0000100110 1408 404670 280 bits
12 0000011111 1408 400530 360 bits
N/A 1408 400500 1720 bits
0000011111 1408 400500 320 bits
13 0000111101 1408 418320 80 bits
N/A 1408 418320 4320 bits
0000111101 1408 418560 120 bits
14 - - -
- - -
- - -
15 0000110011 1408 416070 7880 bits
N/A 1408 412440 2680 bits
0000110011 1408 416070 1560 bits
16 0000111100 1408 419430 6400 bits
N/A 1408 417840 3640 bits
0000111100 1408 419130 2640 bits
18 - - -
- - -
- - -
19 0000101101 1408 408780 160 bits
N/A 1408 408780 9120 bits
0000101101 1408 408810 200 bits
21 0000101101 1408 411990 7000 bits
N/A 1408 408600 5120 bits
0000101101 1408 411150 1120 bits
23 0000111110 1408 419430 920 bits
N/A 1408 419340 8040 bits
0000111110 1408 419130 360 bits
25 0000111110 1408 419430 760 bits
N/A 1408 419400 2440 bits
0000111110 1408 419130 360 bits
26 0000111110 1408 419430 760 bits
N/A 1408 419400 1520 bits
0000111110 1408 419130 360 bits
27 0000100010 1408 402390 400 bits
N/A 1408 402360 4880 bits
0000100010 1408 402390 360 bits
28 0000110011 1408 416670 7640 bits
N/A 1408 412680 4640 bits
0000110011 1408 416490 1040 bits
29 0000011011 1408 400710 4920 bits
N/A 1408 398220 2360 bits
0000011011 1408 400710 1680 bits
30 0000010110 1408 395160 400 bits
N/A 1408 395160 2960 bits
0000010110 1408 395130 360 bits
31 0000111110 1408 419430 760 bits
N/A 1408 419400 6280 bits
0000111110 1408 419130 360 bits
32 0000111001 1408 419400 1800 bits
N/A 1408 374160 5920 bits
0001110010 1408 378150 3360 bits
33 0000111110 1408 419430 760 bits
N/A 1408 419400 3560 bits
0000111110 1408 419130 360 bits
34 0000110000 1408 410760 320 bits
N/A 1408 410760 4120 bits
0000110000 1408 410760 360 bits
36 0000101100 1408 408120 80 bits
N/A 1408 408060 6760 bits
0000101100 1408 408090 40 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