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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]

1393 246990

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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0615 05F15 1115 0615 0415 1115
Key 01aab84d7486f15a0c44b2707302a763
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0911 04F15 1115 0911 0615 1115
Key 01aab84d7486f15a0c44b2707302a763
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1011 23F15 1115 1011 0615 1115
Key 01aab84d7486f15a0c44b2707302a763
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2111 04F15 1915 2111 2915 1915
Key 01aab84d7486f15a0c44b2707302a763
SVID 23
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 2711 36F11 3415 2711 1915 3415
Key 01aab84d7486f15a0c44b2707302a763
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 0000001000 1393 240390 6920 bits
N/A 1393 194640 9760 bits
0000001000 1393 240330 960 bits
03 0001101011 1393 220290 6800 bits
N/A 1393 217200 1600 bits
0001101011 1393 220110 40 bits
04 0000011001 1393 246960 7560 bits
N/A 1393 244740 3160 bits
0000011001 1393 244770 440 bits
05 0001100011 1393 213660 4440 bits
N/A 1393 208500 640 bits
0001100011 1393 213510 640 bits
06 0000011000 1393 246960 9600 bits
N/A 1393 244020 2480 bits
0000011000 1393 246630 3280 bits
07 0000001001 1393 236430 3000 bits
N/A 1393 235080 3120 bits
0000001001 1393 236430 1240 bits
08 0001110111 1393 227550 4760 bits
N/A 1393 224940 1240 bits
0001110111 1393 226410 840 bits
09 0000011101 1393 246960 400 bits
N/A 1393 246960 1800 bits
0000011100 1393 246660 800 bits
10 0000011101 1393 246960 400 bits
N/A 1393 246960 1840 bits
0000011100 1393 246660 800 bits
11 0000011011 1393 246960 5400 bits
N/A 1393 245400 3880 bits
0000011011 1393 246630 1320 bits
12 0000011100 1393 246330 240 bits
N/A 1393 246300 5840 bits
0000011100 1393 246360 320 bits
13 0001110111 1393 225030 760 bits
N/A 1393 225000 2280 bits
0001110111 1393 225030 760 bits
14 - - -
- - -
- - -
15 0001100100 1393 216930 9320 bits
N/A 1393 213540 2280 bits
0001100100 1393 216270 3360 bits
16 0000000101 1393 232650 160 bits
N/A 1393 232620 3360 bits
0000000101 1393 232650 160 bits
18 - - -
- - -
- - -
19 0000011011 1393 246960 3920 bits
N/A 1393 245460 8320 bits
0000011011 1393 246630 1480 bits
21 0000011101 1393 246960 400 bits
N/A 1393 246960 2600 bits
0000011100 1393 246660 800 bits
23 0000011010 1393 246960 3120 bits
N/A 1393 245340 3040 bits
0000011010 1393 245370 680 bits
25 0000001001 1393 240630 7800 bits
N/A 1393 234780 1880 bits
0000001001 1393 235530 520 bits
26 0000001000 1393 234480 560 bits
N/A 1393 234480 8160 bits
0000001000 1393 234480 560 bits
27 0000011101 1393 246960 360 bits
N/A 1393 246960 1840 bits
0000011100 1393 246660 800 bits
28 - - -
- - -
- - -
29 0000011010 1393 246960 5480 bits
N/A 1393 244800 8400 bits
0000011010 1393 245490 720 bits
30 0000010100 1393 242490 1560 bits
N/A 1393 236460 400 bits
0000010100 1393 241650 80 bits
31 0000000000 1393 229320 80 bits
N/A 1393 229260 3960 bits
0000000000 1393 229290 40 bits
32 - - -
- - -
- - -
33 0000010100 1393 242520 2640 bits
N/A 1393 241560 8080 bits
0000010100 1393 241590 440 bits
34 0001010011 1393 206670 4960 bits
N/A 1393 202980 8800 bits
0001010011 1393 206670 480 bits
36 0000011101 1393 246960 400 bits
N/A 1393 246720 1800 bits
0000011100 1393 246660 800 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