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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]

1412 474780

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 11
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 4
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 0504 03F15 0515 09F15 0504 3615
Key 6d29c8939e71c4a7c70215dca5e18b37
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0604 31F15 0615 09F15 0604 0415
Key 6d29c8939e71c4a7c70215dca5e18b37
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1504 03F15 1515 32F15 1504 2315
Key 6d29c8939e71c4a7c70215dca5e18b37
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1604 25F04 1615 31F15 1604 3615
Key 6d29c8939e71c4a7c70215dca5e18b37
SVID 23
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 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3404 03F15 3415 36F15 3404 3215
Key 6d29c8939e71c4a7c70215dca5e18b37
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 0000000011 1412 459810 80 bits
N/A 1412 459840 3240 bits
0000000011 1412 459840 120 bits
03 0000011011 1412 474750 2080 bits
N/A 1412 474240 4080 bits
0000011011 1412 474450 520 bits
04 0000010110 1412 474720 7360 bits
N/A 1412 471120 5560 bits
0000010110 1412 474150 1240 bits
05 0000011100 1412 474750 120 bits
N/A 1412 474720 5200 bits
0000011011 1412 474450 520 bits
06 0000011100 1412 474750 120 bits
N/A 1412 474720 9080 bits
0000011011 1412 474450 520 bits
07 0001110000 1412 449100 320 bits
N/A 1412 449100 4840 bits
0001110000 1412 449100 320 bits
08 0001100100 1412 445590 8160 bits
N/A 1412 441600 1800 bits
0001100100 1412 441870 40 bits
09 0000011010 1412 474750 3800 bits
N/A 1412 473820 6680 bits
0000011010 1412 473850 520 bits
10 0000010000 1412 467700 320 bits
N/A 1412 467700 10720 bits
0000010000 1412 467700 240 bits
11 0000010000 1412 471810 4880 bits
N/A 1412 467820 9960 bits
0000010000 1412 471750 800 bits
12 0000001010 1412 464130 280 bits
N/A 1412 464040 11200 bits
0000001010 1412 464070 280 bits
13 0001011010 1412 435870 280 bits
N/A 1412 435780 1120 bits
0001011010 1412 435810 200 bits
14 - - -
- - -
- - -
15 0000011100 1412 474750 120 bits
N/A 1412 474720 1960 bits
0000011011 1412 474450 520 bits
16 0000011100 1412 474750 120 bits
N/A 1412 474720 9520 bits
0000011011 1412 474450 520 bits
18 - - -
- - -
- - -
19 0000001011 1412 464970 680 bits
N/A 1412 464880 7960 bits
0000001011 1412 464940 640 bits
21 0000010101 1412 471450 1880 bits
N/A 1412 470520 3120 bits
0000010101 1412 471450 640 bits
23 0000011011 1412 474750 880 bits
N/A 1412 474120 4800 bits
0000011011 1412 474150 120 bits
25 0001111101 1412 456990 440 bits
N/A 1412 456960 4840 bits
0001111101 1412 456960 400 bits
26 0001101001 1412 449190 9640 bits
N/A 1412 445140 4640 bits
0001101001 1412 446070 1200 bits
27 0000001011 1412 465060 680 bits
N/A 1412 465060 2920 bits
0000001011 1412 465060 800 bits
28 0000010100 1412 473250 4760 bits
N/A 1412 470340 8040 bits
0000010100 1412 471150 1080 bits
29 0001111101 1412 456930 240 bits
N/A 1412 456900 4800 bits
0001111101 1412 456900 200 bits
30 0000000110 1412 461670 120 bits
N/A 1412 461580 360 bits
0000000110 1412 461610 160 bits
31 0000010111 1412 474750 9840 bits
N/A 1412 471600 5880 bits
0000010111 1412 474450 480 bits
32 0001011110 1412 438630 760 bits
N/A 1412 438600 3040 bits
0001011110 1412 438630 720 bits
33 0001111010 1412 455040 240 bits
N/A 1412 455040 6080 bits
0001111010 1412 455040 240 bits
34 0000011100 1412 474750 120 bits
N/A 1412 474720 4240 bits
0000011011 1412 474450 80 bits
36 0000010111 1412 474750 8520 bits
N/A 1412 471720 7200 bits
0000010111 1412 471750 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 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