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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]

1409 363030

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 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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1515 27F15 0515 1515 0315 0515
Key f93107347e7c568ef6a11a94706a9263
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 05F15 1315 1800 2315 1315
Key f93107347e7c568ef6a11a94706a9263
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 33F15 1315 2115 2315 1315
Key f93107347e7c568ef6a11a94706a9263
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2615 23F15 3315 2615 1315 3315
Key f93107347e7c568ef6a11a94706a9263
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3215 05F15 0815 3215 0315 0815
Key f93107347e7c568ef6a11a94706a9263
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3415 31F15 0515 3415 0315 0515
Key f93107347e7c568ef6a11a94706a9263

Authenticated Data

02 0001010010 1409 354780 160 bits
N/A 1409 354720 4960 bits
0001010010 1409 354750 120 bits
03 0001011111 1409 363000 1640 bits
N/A 1409 362640 2720 bits
0001011111 1409 362670 280 bits
04 0001010010 1409 356790 8760 bits
N/A 1409 355080 3360 bits
0001010010 1409 355170 640 bits
05 0001011011 1409 363000 12000 bits
N/A 1409 360420 1680 bits
0001011011 1409 362670 3920 bits
06 0001011000 1409 358860 800 bits
N/A 1409 358860 3400 bits
0001011000 1409 358860 800 bits
07 0001000010 1409 347790 7840 bits
N/A 1409 345480 8560 bits
0001000010 1409 346770 1320 bits
08 0001011111 1409 363000 800 bits
N/A 1409 362700 120 bits
0001011111 1409 362700 200 bits
09 0001011110 1409 362370 680 bits
N/A 1409 362340 2720 bits
0001011110 1409 362370 640 bits
10 0000111111 1409 347550 9880 bits
N/A 1409 343680 6240 bits
0000111111 1409 347550 2240 bits
11 0001000111 1409 348240 240 bits
N/A 1409 348180 1280 bits
0001000111 1409 348210 200 bits
12 0000111010 1409 340320 80 bits
N/A 1409 340260 6800 bits
0000111010 1409 340290 40 bits
13 0001011011 1409 363000 11360 bits
N/A 1409 360420 3560 bits
0001011011 1409 362670 2560 bits
14 - - -
- - -
- - -
15 0001011111 1409 363000 720 bits
N/A 1409 363000 7280 bits
0001011111 1409 362700 320 bits
16 0000101111 1409 338070 9200 bits
N/A 1409 334080 8840 bits
0000101111 1409 334230 680 bits
18 - - -
- - -
- - -
19 0001001100 1409 353010 8120 bits
N/A 1409 351120 2040 bits
0001001100 1409 352830 1280 bits
21 0001011111 1409 363000 720 bits
N/A 1409 363000 3040 bits
0001011111 1409 362700 320 bits
23 0001011011 1409 363000 9040 bits
N/A 1409 360480 440 bits
0001011011 1409 361710 1080 bits
25 0000111100 1409 345810 7920 bits
N/A 1409 341760 9240 bits
0000111100 1409 341790 440 bits
26 0001011111 1409 363000 720 bits
N/A 1409 363000 800 bits
0001011111 1409 362700 320 bits
27 0001011011 1409 363000 11200 bits
N/A 1409 360420 7920 bits
0001011011 1409 360450 520 bits
28 0001001111 1409 356970 15000 bits
N/A 1409 352800 1000 bits
0001001111 1409 356970 2720 bits
29 0001000110 1409 351510 11480 bits
N/A 1409 347520 840 bits
0001000110 1409 351510 3200 bits
30 0001011001 1409 362820 11840 bits
N/A 1409 358860 5120 bits
0001011001 1409 362670 1840 bits
31 0000011110 1409 327690 7400 bits
N/A 1409 323520 3720 bits
0000011110 1409 327630 960 bits
32 0001011111 1409 363000 720 bits
N/A 1409 363000 1680 bits
0001011111 1409 362700 320 bits
33 0000101010 1409 334350 11800 bits
N/A 1409 330900 1080 bits
0000101010 1409 334350 1160 bits
34 0001011111 1409 363000 720 bits
N/A 1409 363000 5760 bits
0001011111 1409 362700 320 bits
36 0001010100 1409 356340 640 bits
N/A 1409 356340 3240 bits
0001010100 1409 356340 640 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