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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]

1404 155100

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 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 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0208 30F15 0215 25F08 0208 1515
Key fddc42946ed3e6238fb45daeed3eddf9
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0303 25F08 0315 08F15 0303 2615
Key fddc42946ed3e6238fb45daeed3eddf9
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0508 25F08 0515 09F15 0508 1015
Key fddc42946ed3e6238fb45daeed3eddf9
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1308 08F15 1315 26F15 1308 1515
Key fddc42946ed3e6238fb45daeed3eddf9
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1601 25F08 1615 31F08 1601 0915
Key fddc42946ed3e6238fb45daeed3eddf9
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags - - - 36F15 1800 2508
Key fddc42946ed3e6238fb45daeed3eddf9
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 26
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 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000000011 1404 155070 280 bits
N/A 1404 155040 1440 bits
0000000010 1404 154770 680 bits
03 0000000011 1404 155070 80 bits
N/A 1404 155040 6320 bits
0000000000 1404 154770 840 bits
04 0001101100 1404 145770 10280 bits
N/A 1404 142080 2720 bits
0001101100 1404 142110 600 bits
05 0000000011 1404 155070 280 bits
N/A 1404 155040 10240 bits
0000000010 1404 154770 680 bits
06 0001111000 1404 149100 40 bits
N/A 1404 149100 4040 bits
0001111000 1404 149100 40 bits
07 0001000100 1404 118050 520 bits
N/A 1404 118020 6240 bits
0001000100 1404 118020 480 bits
08 0000000000 1404 155070 3000 bits
N/A 1404 153180 2320 bits
0000000000 1404 154770 1200 bits
09 0000000000 1404 155040 2480 bits
N/A 1404 153180 7960 bits
0000000000 1404 153210 200 bits
10 0001100011 1404 136680 560 bits
N/A 1404 136560 1800 bits
0001100011 1404 136620 480 bits
11 0001101010 1404 140580 120 bits
N/A 1404 140520 3120 bits
0001101010 1404 140520 80 bits
12 0001011101 1404 133020 480 bits
N/A 1404 132960 760 bits
0001011101 1404 132990 440 bits
13 0000000011 1404 155070 280 bits
N/A 1404 155040 2560 bits
0000000010 1404 154770 680 bits
14 - - -
- - -
- - -
15 0000000000 1404 155040 2960 bits
N/A 1404 153120 6520 bits
0000000000 1404 153150 120 bits
16 0001111100 1404 155070 13880 bits
N/A 1404 151500 3440 bits
0001111100 1404 154770 3560 bits
18 - - -
- - -
- - -
19 0001011011 1404 134430 8160 bits
N/A 1404 131400 6360 bits
0001011011 1404 134070 560 bits
21 0001100110 1404 142050 10080 bits
N/A 1404 138300 1760 bits
0001100110 1404 142050 2360 bits
23 0001110100 1404 149550 5320 bits
N/A 1404 146520 2800 bits
0001110100 1404 148590 920 bits
25 0000000011 1404 155070 600 bits
N/A 1404 154920 3000 bits
0000000010 1404 154770 680 bits
26 0001111011 1404 155070 7920 bits
N/A 1404 107580 8080 bits
0001111011 1404 154710 1560 bits
27 0001011111 1404 134100 200 bits
N/A 1404 134100 160 bits
0001011111 1404 134100 280 bits
28 0001101000 1404 139350 120 bits
N/A 1404 139320 400 bits
0001101000 1404 139320 80 bits
29 0001010001 1404 127050 1680 bits
N/A 1404 125460 6120 bits
0001010001 1404 126870 720 bits
30 0001010100 1404 130710 4360 bits
N/A 1404 127740 1280 bits
0001010100 1404 130710 1600 bits
31 0000000011 1404 155070 120 bits
N/A 1404 154860 6440 bits
0000000010 1404 154770 680 bits
32 - - -
- - -
- - -
33 0001001110 1404 123960 400 bits
N/A 1404 123960 7200 bits
0001001110 1404 123960 400 bits
34 0001111001 1404 153450 11080 bits
N/A 1404 149640 5000 bits
0001111001 1404 153450 2880 bits
36 0001110010 1404 149670 9560 bits
N/A 1404 145620 2560 bits
0001110010 1404 149670 2560 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