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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]

1391 110700

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 13
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 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0901 06F15 0915 11F08 0901 1015
Key 5bde10998c9ee9f84810392edb1984fc
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
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 1608 05F08 1615 03F15 1608 3115
Key 5bde10998c9ee9f84810392edb1984fc
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 05F08 1800 31F15 1800 1215
Key 5bde10998c9ee9f84810392edb1984fc
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2308 31F15 2315 21F15 2308 2608
Key 5bde10998c9ee9f84810392edb1984fc
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2508 05F08 2515 03F15 2508 3415
Key 5bde10998c9ee9f84810392edb1984fc
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3308 31F15 3315 26F08 3308 1215
Key 5bde10998c9ee9f84810392edb1984fc

Authenticated Data

02 0000000001 1391 77550 40 bits
N/A 1391 77460 3120 bits
0000000001 1391 77550 80 bits
03 0000110111 1391 110670 2800 bits
N/A 1391 109980 2240 bits
0000110111 1391 110370 920 bits
04 0000101111 1391 108750 8920 bits
N/A 1391 105120 4640 bits
0000101111 1391 105570 560 bits
05 0000111000 1391 110670 720 bits
N/A 1391 110400 4440 bits
0000110111 1391 110370 480 bits
06 0000110100 1391 110670 2640 bits
N/A 1391 108480 6880 bits
0000110100 1391 108510 600 bits
07 0000001000 1391 81810 200 bits
N/A 1391 81780 9760 bits
0000001000 1391 81810 200 bits
08 0001110010 1391 72570 10920 bits
N/A 1391 69420 11240 bits
0001110010 1391 72570 4800 bits
09 0000110010 1391 110670 11120 bits
N/A 1391 107280 4400 bits
0000110010 1391 110010 2640 bits
10 0000110010 1391 110670 360 bits
N/A 1391 88380 720 bits
0000010011 1391 88410 200 bits
11 0000011000 1391 91860 800 bits
N/A 1391 91860 560 bits
0000011000 1391 91830 760 bits
12 0000110100 1391 110670 4800 bits
N/A 1391 108540 1320 bits
0000110100 1391 108570 680 bits
13 0000110001 1391 109170 6880 bits
N/A 1391 106620 4920 bits
0000110001 1391 108930 1960 bits
14 - - -
- - -
- - -
15 0000100110 1391 99690 40 bits
N/A 1391 99660 1160 bits
0000100110 1391 99720 80 bits
16 0000111000 1391 110670 280 bits
N/A 1391 110640 5720 bits
0000110111 1391 110370 680 bits
18 - - -
- - -
- - -
19 0000100101 1391 99420 400 bits
N/A 1391 99360 3840 bits
0000100101 1391 99420 480 bits
21 0000101001 1391 101880 120 bits
N/A 1391 101820 4200 bits
0000101001 1391 101820 40 bits
23 0000111000 1391 110670 280 bits
N/A 1391 110640 9840 bits
0000110111 1391 110370 680 bits
25 0000111000 1391 110670 280 bits
N/A 1391 110640 2200 bits
0000110111 1391 110370 680 bits
26 0000111000 1391 110670 320 bits
N/A 1391 110580 4160 bits
0000110111 1391 110370 240 bits
27 0000010111 1391 94470 8040 bits
N/A 1391 90600 1480 bits
0000010111 1391 94470 2680 bits
28 - - -
- - -
- - -
29 0000010011 1391 92460 8320 bits
N/A 1391 88560 1000 bits
0000010011 1391 88590 440 bits
30 0000001110 1391 85410 200 bits
N/A 1391 85380 8760 bits
0000001110 1391 85410 200 bits
31 0000110101 1391 110670 8320 bits
N/A 1391 108960 4280 bits
0000110101 1391 110370 1640 bits
32 - - -
- - -
- - -
33 0000111000 1391 110670 280 bits
N/A 1391 110640 4120 bits
0000110111 1391 110370 680 bits
34 0000100001 1391 96720 40 bits
N/A 1391 93420 1080 bits
0000100001 1391 97050 40 bits
36 0000011101 1391 94950 720 bits
N/A 1391 94320 2160 bits
0000011101 1391 94350 120 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