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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]

1413 250410

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 3
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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 7
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 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 1205 33F15 1005 1205 2915 1005
Key 9a15e86b6f7fd7d38ffe7d513e1c14d2
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 16F15 1005 1400 1115 1005
Key 9a15e86b6f7fd7d38ffe7d513e1c14d2
SVID 16
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
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 3205 02F15 3415 3205 3015 3415
Key 9a15e86b6f7fd7d38ffe7d513e1c14d2
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 0000011101 1413 250350 7760 bits
N/A 1413 247020 2600 bits
0000011101 1413 248310 1600 bits
03 0000100010 1413 249930 360 bits
N/A 1413 249900 8920 bits
0000100010 1413 249930 360 bits
04 0000000000 1413 232410 3920 bits
N/A 1413 229260 4080 bits
0000000000 1413 229290 40 bits
05 0000011001 1413 244590 440 bits
N/A 1413 244620 10800 bits
0000011001 1413 244560 400 bits
06 0000000101 1413 236370 6520 bits
N/A 1413 232380 5160 bits
0000000101 1413 234630 1120 bits
07 0000011111 1413 249750 1560 bits
N/A 1413 248280 2840 bits
0000011111 1413 248370 640 bits
08 0000100000 1413 250350 3640 bits
N/A 1413 248400 5040 bits
0000100000 1413 250050 1000 bits
09 0000001001 1413 238590 8520 bits
N/A 1413 234600 3680 bits
0000001001 1413 238590 1800 bits
10 0000100011 1413 250380 200 bits
N/A 1413 250320 2440 bits
0000100010 1413 250080 520 bits
11 0000100010 1413 250380 1640 bits
N/A 1413 250080 6240 bits
0000100010 1413 250080 520 bits
12 0000100011 1413 250380 160 bits
N/A 1413 250380 4480 bits
0000100010 1413 250080 520 bits
13 0000000110 1413 233490 880 bits
N/A 1413 233100 4040 bits
0000000110 1413 233130 360 bits
14 - - -
- - -
- - -
15 0000000001 1413 230460 800 bits
N/A 1413 230400 2760 bits
0000000001 1413 230430 760 bits
16 0000011101 1413 250320 13880 bits
N/A 1413 247080 8560 bits
0000011101 1413 248370 1600 bits
18 - - -
- - -
- - -
19 0001101101 1413 222270 6800 bits
N/A 1413 218520 840 bits
0001101101 1413 219690 440 bits
21 0001110101 1413 223290 40 bits
N/A 1413 223260 2720 bits
0001110101 1413 223290 40 bits
23 0000000011 1413 233670 7520 bits
N/A 1413 231180 5520 bits
0000000011 1413 233670 2600 bits
25 0000011111 1413 250380 9880 bits
N/A 1413 248340 10960 bits
0000011111 1413 250050 4160 bits
26 0000010000 1413 238950 120 bits
N/A 1413 238920 2400 bits
0000010000 1413 238950 120 bits
27 0001100111 1413 215850 720 bits
N/A 1413 215100 5680 bits
0001100111 1413 215130 360 bits
28 0001111001 1413 225930 360 bits
N/A 1413 225960 2600 bits
0001111001 1413 225930 360 bits
29 0001100000 1413 215430 10040 bits
N/A 1413 210660 10360 bits
0001100000 1413 211530 560 bits
30 0000011111 1413 250380 2840 bits
N/A 1413 248340 720 bits
0000011111 1413 248370 680 bits
31 0000010011 1413 244830 5640 bits
N/A 1413 240720 7680 bits
0000010011 1413 241110 240 bits
32 0000100011 1413 250380 160 bits
N/A 1413 250380 6000 bits
0000100010 1413 250080 560 bits
33 0000011001 1413 247200 6640 bits
N/A 1413 244560 3560 bits
0000011001 1413 247050 1960 bits
34 0001111100 1413 227820 480 bits
N/A 1413 227820 4280 bits
0001111100 1413 227820 480 bits
36 0000011111 1413 250350 5000 bits
N/A 1413 248340 1400 bits
0000011111 1413 248370 680 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