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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]

1417 373920

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 14
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 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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0902 06F15 0915 04F15 0902 1615
Key f1500d28bda9dd94cc4f96e46d13940c
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1002 04F15 1015 11F15 1002 0615
Key f1500d28bda9dd94cc4f96e46d13940c
SVID 11
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 1202 04F15 1215 06F15 1202 1115
Key f1500d28bda9dd94cc4f96e46d13940c
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2702 29F15 2715 19F15 2702 2115
Key f1500d28bda9dd94cc4f96e46d13940c
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2802 04F15 2815 19F15 2802 1115
Key f1500d28bda9dd94cc4f96e46d13940c
SVID 29
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 3002 36F15 3015 29F15 3002 1915
Key f1500d28bda9dd94cc4f96e46d13940c
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 0001100110 1417 370980 5920 bits
N/A 1417 367020 1440 bits
0001100110 1417 369870 680 bits
03 0001001100 1417 351510 600 bits
N/A 1417 351480 3080 bits
0001001100 1417 351510 600 bits
04 0001101110 1417 373890 8600 bits
N/A 1417 371700 3920 bits
0001101110 1417 373590 1600 bits
05 0000111110 1417 345990 6560 bits
N/A 1417 343140 3920 bits
0000111110 1417 344550 1240 bits
06 0001110000 1417 373890 3280 bits
N/A 1417 373080 2920 bits
0001110000 1417 373590 800 bits
07 0001100101 1417 368550 3560 bits
N/A 1417 366240 10880 bits
0001100101 1417 368070 1240 bits
08 0001011001 1417 359130 360 bits
N/A 1417 359100 5320 bits
0001011001 1417 359130 360 bits
09 0001110010 1417 373890 40 bits
N/A 1417 373860 360 bits
0001110001 1417 373590 320 bits
10 0001110010 1417 373890 40 bits
N/A 1417 373860 5160 bits
0001110001 1417 373590 440 bits
11 0001110000 1417 373890 3200 bits
N/A 1417 373140 2720 bits
0001110000 1417 373170 680 bits
12 0001110010 1417 373890 40 bits
N/A 1417 373860 8520 bits
0001110001 1417 373590 440 bits
13 0001010101 1417 356730 360 bits
N/A 1417 356700 4320 bits
0001010101 1417 356700 320 bits
14 - - -
- - -
- - -
15 0001000000 1417 347790 13520 bits
N/A 1417 343800 10280 bits
0001000000 1417 346050 1480 bits
16 0001011100 1417 364890 6440 bits
N/A 1417 360900 2120 bits
0001011100 1417 362010 1080 bits
18 - - -
- - -
- - -
19 0001110000 1417 373890 3200 bits
N/A 1417 372900 4120 bits
0001110000 1417 372930 360 bits
21 0001101111 1417 373860 2040 bits
N/A 1417 372300 1720 bits
0001101111 1417 372330 40 bits
23 0001010101 1417 356820 480 bits
N/A 1417 356820 2520 bits
0001010101 1417 356820 480 bits
25 0001100101 1417 366450 520 bits
N/A 1417 366420 1800 bits
0001100101 1417 366480 520 bits
26 0001100100 1417 366060 200 bits
N/A 1417 366060 6520 bits
0001100100 1417 366060 200 bits
27 0001110010 1417 373890 40 bits
N/A 1417 373860 1240 bits
0001110001 1417 373590 440 bits
28 0001110010 1417 373890 40 bits
N/A 1417 373860 3360 bits
0001110001 1417 373590 400 bits
29 0001101110 1417 373890 5920 bits
N/A 1417 371880 9360 bits
0001101110 1417 373590 1720 bits
30 0001110010 1417 373890 40 bits
N/A 1417 373860 1640 bits
0001110001 1417 373590 440 bits
31 0001011010 1417 363870 6800 bits
N/A 1417 359760 4760 bits
0001011010 1417 363690 480 bits
32 0001010001 1417 358470 9600 bits
N/A 1417 354420 1240 bits
0001010001 1417 358410 2120 bits
33 0001101111 1417 373890 1160 bits
N/A 1417 372360 8440 bits
0001101111 1417 372390 440 bits
34 0000110001 1417 338490 5800 bits
N/A 1417 334980 7440 bits
0000110001 1417 338490 640 bits
36 0001101110 1417 373890 4440 bits
N/A 1417 371820 400 bits
0001101110 1417 373590 1800 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