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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]

1399 407880

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 - - - - 0214 1015
Key 775b4d4c2af5574309ceeefcb8ee0123
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0714 30F15 0715 29F15 0714 1215
Key 775b4d4c2af5574309ceeefcb8ee0123
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 1114 10F15 1115 25F15 1114 1215
Key 775b4d4c2af5574309ceeefcb8ee0123
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
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 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2714 30F15 2715 29F15 2714 2615
Key 775b4d4c2af5574309ceeefcb8ee0123
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2814 19F15 2815 12F15 2814 1015
Key 775b4d4c2af5574309ceeefcb8ee0123
SVID 29
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3314 19F15 3315 26F15 3314 1215
Key 775b4d4c2af5574309ceeefcb8ee0123

Authenticated Data

02 0000101011 1399 407850 480 bits
N/A 1399 407820 4880 bits
0000101011 1399 407550 120 bits
03 0000010101 1399 394350 120 bits
N/A 1399 394320 1200 bits
0000010101 1399 394350 120 bits
04 0001110000 1399 376710 7800 bits
N/A 1399 368760 80 bits
0001110000 1399 373050 40 bits
05 0000001000 1399 389790 11200 bits
N/A 1399 386460 8840 bits
0000001000 1399 389430 1120 bits
06 0001110010 1399 374430 440 bits
N/A 1399 373620 1720 bits
0001110010 1399 374430 120 bits
07 0000101011 1399 407850 520 bits
N/A 1399 407820 5680 bits
0000101011 1399 407550 120 bits
08 0000100011 1399 403050 360 bits
N/A 1399 402900 2560 bits
0000100011 1399 402900 320 bits
09 0001110100 1399 378930 9000 bits
N/A 1399 375300 760 bits
0001110100 1399 376710 1800 bits
10 0000100110 1399 407850 8280 bits
N/A 1399 404700 800 bits
0000100110 1399 407550 1000 bits
11 0000101011 1399 407850 400 bits
N/A 1399 407820 160 bits
0000101011 1399 407550 40 bits
12 0000100110 1399 407850 14280 bits
N/A 1399 404580 1520 bits
0000100110 1399 406050 1000 bits
13 0000100000 1399 401430 720 bits
N/A 1399 401340 4400 bits
0000100000 1399 401400 720 bits
14 - - -
- - -
- - -
15 0000010010 1399 392850 440 bits
N/A 1399 392820 200 bits
0000010010 1399 392820 480 bits
16 0000011001 1399 399930 5600 bits
N/A 1399 352140 1280 bits
0000011001 1399 399270 1240 bits
18 - - -
- - -
- - -
19 0000100110 1399 407850 13200 bits
N/A 1399 404760 2320 bits
0000100110 1399 407550 4160 bits
21 0000001110 1399 390150 120 bits
N/A 1399 390120 9640 bits
0000001110 1399 390150 120 bits
23 0000010011 1399 393600 720 bits
N/A 1399 393600 760 bits
0000010011 1399 393600 720 bits
25 0000100000 1399 404700 8360 bits
N/A 1399 359460 3960 bits
0000100000 1399 404430 80 bits
26 0000101001 1399 407850 3000 bits
N/A 1399 406320 8240 bits
0000101001 1399 406350 120 bits
27 0000101011 1399 407850 520 bits
N/A 1399 407820 920 bits
0000101011 1399 407550 120 bits
28 0000101011 1399 407850 520 bits
N/A 1399 407820 1960 bits
0000101011 1399 407550 120 bits
29 0000101000 1399 407850 6680 bits
N/A 1399 406020 5840 bits
0000101000 1399 406050 520 bits
30 0000101001 1399 407850 5960 bits
N/A 1399 406260 2440 bits
0000101001 1399 407550 2440 bits
31 0000010110 1399 399000 4440 bits
N/A 1399 395040 1600 bits
0000010110 1399 395070 280 bits
32 - - -
- - -
- - -
33 0000101011 1399 407850 520 bits
N/A 1399 407820 6040 bits
0000101011 1399 407550 120 bits
34 0000000000 1399 385530 15120 bits
N/A 1399 381780 10680 bits
0000000000 1399 384570 3160 bits
36 0001110001 1399 373320 80 bits
N/A 1399 373260 6320 bits
0001110001 1399 373290 40 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