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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]

1397 61350

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 7
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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0403 19F15 2815 0403 2315 2815
Key b8e2c9cc5de98509cbbbf18fc67932a3
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0503 02F15 3615 0503 0915 3615
Key b8e2c9cc5de98509cbbbf18fc67932a3
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0603 34F15 0915 0603 3615 0915
Key b8e2c9cc5de98509cbbbf18fc67932a3
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 1003 33F15 2515 1003 0915 2515
Key b8e2c9cc5de98509cbbbf18fc67932a3
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1102 23F15 0915 1102 3615 0915
Key b8e2c9cc5de98509cbbbf18fc67932a3
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 09F15 2515 1400 0215 2515
Key b8e2c9cc5de98509cbbbf18fc67932a3
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2103 27F15 2815 2103 1915 2815
Key b8e2c9cc5de98509cbbbf18fc67932a3
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
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 Not transmitting OSNMA
Key Not transmitting OSNMA
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 0001011001 1397 54480 560 bits
N/A 1397 54480 3040 bits
0001011001 1397 54510 600 bits
03 0000101110 1397 28770 400 bits
N/A 1396 592260 6680 bits
0001100001 1396 595830 4360 bits
04 0001100101 1397 61320 80 bits
N/A 1397 61320 6280 bits
0001100100 1397 61020 480 bits
05 0001100101 1397 61320 80 bits
N/A 1397 61320 1080 bits
0001011111 1397 57750 120 bits
06 0001100101 1397 61320 80 bits
N/A 1397 61320 5160 bits
0001100100 1397 61020 480 bits
07 0001000111 1397 43530 80 bits
N/A 1397 42900 10360 bits
0001000111 1397 43530 40 bits
08 0000111011 1397 39570 16680 bits
N/A 1397 35100 2200 bits
0000111011 1397 39570 3200 bits
09 0001100100 1397 61320 1560 bits
N/A 1397 61080 5600 bits
0001100100 1397 61020 480 bits
10 0001100101 1397 61320 80 bits
N/A 1397 61320 5680 bits
0001100100 1397 61020 480 bits
11 0001100101 1397 61320 40 bits
N/A 1397 61320 3640 bits
0001011111 1397 60990 1560 bits
12 0001011111 1397 60450 4240 bits
N/A 1397 57720 4160 bits
0001011111 1397 60450 1840 bits
13 0000110001 1397 30420 480 bits
N/A 1397 30420 13120 bits
0000110001 1397 30480 520 bits
14 - - -
- - -
- - -
15 0000100011 1397 23490 3000 bits
N/A 1397 21840 8640 bits
0000100011 1397 23490 360 bits
16 0001001111 1397 48210 200 bits
N/A 1397 48180 2480 bits
0001001111 1397 48210 160 bits
18 - - -
- - -
- - -
19 0001100010 1397 59520 40 bits
N/A 1397 59520 5200 bits
0001100010 1397 59490 40 bits
21 0001100101 1397 61320 80 bits
N/A 1397 61320 120 bits
0001011111 1397 59490 880 bits
23 0001100100 1397 61320 960 bits
N/A 1397 60840 240 bits
0001100100 1397 60870 280 bits
25 0001010101 1397 51690 40 bits
N/A 1397 51660 880 bits
0001010100 1397 51660 680 bits
26 0001000001 1397 43860 15680 bits
N/A 1397 39840 12800 bits
0001000001 1397 43110 4160 bits
27 0001011001 1397 57570 5920 bits
N/A 1397 19500 6760 bits
0001011001 1397 57570 1960 bits
28 0001011110 1397 61320 12200 bits
N/A 1397 57240 4200 bits
0001011110 1397 60990 2960 bits
29 0001010010 1397 51510 320 bits
N/A 1397 49980 3680 bits
0001010010 1397 50010 200 bits
30 0001011101 1397 56760 200 bits
N/A 1397 56760 960 bits
0001011101 1397 56760 200 bits
31 0001000101 1397 42090 40 bits
N/A 1397 42060 5960 bits
0001000101 1397 42300 40 bits
32 - - -
- - -
- - -
33 0001010001 1397 49680 560 bits
N/A 1397 49680 1680 bits
0001010001 1397 49680 560 bits
34 0001100000 1397 61320 3680 bits
N/A 1397 58200 480 bits
0001011111 1397 58230 760 bits
36 0001011110 1397 61320 15880 bits
N/A 1397 57360 4000 bits
0001011110 1397 60990 4120 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