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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]

1396 69450

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 5
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 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0913 28F15 1615 0913 0415 1615
Key 1ea82fe291cfd943d701b4470fc2f62d
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1313 33F15 0315 1313 0513 0315
Key 1ea82fe291cfd943d701b4470fc2f62d
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1513 05F13 0315 1513 0815 0315
Key 1ea82fe291cfd943d701b4470fc2f62d
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
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 2513 10F15 1115 2513 1615 1115
Key 1ea82fe291cfd943d701b4470fc2f62d
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3108 28F15 0513 3108 1615 0513
Key 1ea82fe291cfd943d701b4470fc2f62d
SVID 32
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

Authenticated Data

02 0001011001 1396 54120 80 bits
N/A 1396 54120 3680 bits
0001011001 1396 54090 40 bits
03 0001101111 1396 69420 8120 bits
N/A 1396 67440 3240 bits
0001101111 1396 69090 3360 bits
04 0001101000 1396 65190 5160 bits
N/A 1396 63420 7280 bits
0001101000 1396 65190 1360 bits
05 0001110010 1396 69420 1280 bits
N/A 1396 69000 6400 bits
0001110001 1396 69030 760 bits
06 0001110000 1396 68370 680 bits
N/A 1396 68340 8200 bits
0001110000 1396 68370 680 bits
07 0000111111 1396 39060 80 bits
N/A 1396 39060 2840 bits
0001000000 1396 39120 80 bits
08 0001101101 1396 69420 760 bits
N/A 1395 597120 4680 bits
0000110101 1396 33030 440 bits
09 0001110010 1396 69420 480 bits
N/A 1396 69420 8120 bits
0001110010 1396 69120 80 bits
10 0001011111 1396 57840 240 bits
N/A 1396 57840 4200 bits
0001011111 1396 57810 200 bits
11 0001100101 1396 61380 160 bits
N/A 1396 61380 5320 bits
0001100101 1396 61560 200 bits
12 0001010101 1396 54270 3680 bits
N/A 1396 51960 2120 bits
0001010101 1396 51990 440 bits
13 0001110010 1396 69420 480 bits
N/A 1396 69420 440 bits
0001110010 1396 69120 80 bits
14 - - -
- - -
- - -
15 0001110010 1396 69420 480 bits
N/A 1396 69420 5560 bits
0001110010 1396 69120 80 bits
16 0001101101 1396 69420 6920 bits
N/A 1396 66240 640 bits
0001101101 1396 66270 280 bits
18 - - -
- - -
- - -
19 0001010011 1396 53250 3120 bits
N/A 1396 50940 2360 bits
0001010011 1396 51810 1080 bits
21 0001100111 1396 66360 4360 bits
N/A 1396 23280 7600 bits
0001100111 1396 64470 720 bits
23 0001110001 1396 69000 120 bits
N/A 1396 68940 3040 bits
0001110001 1396 68970 160 bits
25 0001110010 1396 69420 120 bits
N/A 1396 69420 3960 bits
0001010010 1396 50460 800 bits
26 0000110111 1396 33930 320 bits
N/A 1396 33840 11560 bits
0000110111 1396 33900 240 bits
27 0001100000 1396 62550 8080 bits
N/A 1396 58560 760 bits
0001100000 1396 62550 3080 bits
28 0001011011 1396 59610 7560 bits
N/A 1396 55740 1280 bits
0001011011 1396 58650 2560 bits
29 0001001101 1396 48390 1880 bits
N/A 1396 46920 1520 bits
0001001101 1396 47730 400 bits
30 0001011101 1396 59850 7160 bits
N/A 1396 56580 3040 bits
0001011101 1396 58590 1520 bits
31 0001110010 1396 69420 280 bits
N/A 1396 69420 1800 bits
0001101111 1396 69090 1800 bits
32 - - -
- - -
- - -
33 0001000111 1396 43410 200 bits
N/A 1396 43380 4760 bits
0001000111 1396 43380 160 bits
34 0001110001 1396 69420 1680 bits
N/A 1396 68640 8080 bits
0001110001 1396 68670 280 bits
36 0001110001 1396 68910 440 bits
N/A 1396 68880 4600 bits
0001110001 1396 68910 520 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