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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]

1391 227190

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 2
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 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 1111 12F15 1015 1111 3615 1015
Key 4c50359ec86fb0d0f5984334471ec9c1
SVID 12
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 1611 12F15 3615 1611 0415 3615
Key 4c50359ec86fb0d0f5984334471ec9c1
SVID 19
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 2511 12F15 3615 2511 1015 3615
Key 4c50359ec86fb0d0f5984334471ec9c1
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2911 26F15 1215 2911 1915 1215
Key 4c50359ec86fb0d0f5984334471ec9c1
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3311 04F15 1915 3311 2615 1915
Key 4c50359ec86fb0d0f5984334471ec9c1

Authenticated Data

02 0001111001 1391 227160 1640 bits
N/A 1391 225840 40 bits
0001111001 1391 225870 160 bits
03 0001011111 1391 215370 6640 bits
N/A 1391 171480 11320 bits
0001011111 1391 214830 1480 bits
04 0001111000 1391 227160 2080 bits
N/A 1391 204060 3720 bits
0001111000 1391 225150 40 bits
05 0001011111 1391 210810 1280 bits
N/A 1391 210240 2520 bits
0001011111 1391 210810 560 bits
06 0001011001 1391 206550 120 bits
N/A 1391 206520 4680 bits
0001011001 1391 206550 120 bits
07 0001111000 1391 226170 1200 bits
N/A 1391 226200 4240 bits
0001111001 1391 226200 40 bits
08 0001100111 1391 219150 9920 bits
N/A 1391 215340 240 bits
0001100111 1391 218190 3120 bits
09 0001011011 1391 210210 3520 bits
N/A 1391 207540 4920 bits
0001011011 1391 208890 320 bits
10 0001111001 1391 227160 5760 bits
N/A 1391 225960 2760 bits
0001111001 1391 226830 1520 bits
11 0001111011 1391 227160 400 bits
N/A 1391 227160 5040 bits
0001111010 1391 226860 800 bits
12 0001111001 1391 227160 4840 bits
N/A 1391 225900 2840 bits
0001111001 1391 226830 760 bits
13 0001100001 1391 215370 6120 bits
N/A 1391 211560 6600 bits
0001100001 1391 215370 1880 bits
14 - - -
- - -
- - -
15 0001010001 1391 204660 4520 bits
N/A 1391 201780 6320 bits
0001010001 1391 204150 600 bits
16 0001111011 1391 227160 400 bits
N/A 1391 227160 3080 bits
0001111010 1391 226860 800 bits
18 - - -
- - -
- - -
19 0001111001 1391 227160 3720 bits
N/A 1391 225660 2160 bits
0001111001 1391 226830 760 bits
21 0001100000 1391 211260 800 bits
N/A 1391 211200 12400 bits
0001100000 1391 211230 760 bits
23 0001100111 1391 219180 13400 bits
N/A 1391 215220 2080 bits
0001100111 1391 218190 1840 bits
25 0001111011 1391 227160 400 bits
N/A 1391 227160 2640 bits
0001111010 1391 226860 800 bits
26 0001110011 1391 223050 2120 bits
N/A 1391 222420 1360 bits
0001110011 1391 222390 440 bits
27 0001010001 1391 202020 480 bits
N/A 1391 202020 9520 bits
0001010001 1391 201990 440 bits
28 - - -
- - -
- - -
29 0001111011 1391 227160 400 bits
N/A 1391 227160 3320 bits
0001111010 1391 226860 800 bits
30 0001000001 1391 192390 440 bits
N/A 1391 192360 6240 bits
0001000001 1391 192390 440 bits
31 0001110011 1391 226350 5320 bits
N/A 1391 222300 720 bits
0001110011 1391 226350 480 bits
32 - - -
- - -
- - -
33 0001111011 1391 227160 400 bits
N/A 1391 227160 4000 bits
0001111010 1391 226860 800 bits
34 0001000101 1391 198210 6560 bits
N/A 1391 194880 1640 bits
0001000101 1391 197550 1360 bits
36 0000111000 1391 190950 7440 bits
N/A 1391 186900 760 bits
0000111000 1391 190950 720 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