Input Options:

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 68970

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 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 0215 10F15 1115 0215 3015 1115
Key c1921a1c95001677d2653acd730ceb1b
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 10F15 3015 0715 0815 3015
Key c1921a1c95001677d2653acd730ceb1b
SVID 8
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 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 25F15 0815 1800 3015 0815
Key c1921a1c95001677d2653acd730ceb1b
SVID 19
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 2715 19F15 3015 2715 0815 3015
Key c1921a1c95001677d2653acd730ceb1b
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2915 30F15 1215 2915 1915 1215
Key c1921a1c95001677d2653acd730ceb1b
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 3315 04F15 1915 3315 2615 1915
Key c1921a1c95001677d2653acd730ceb1b

Authenticated Data

02 0001110001 1404 68940 640 bits
N/A 1404 68940 8600 bits
0001110001 1404 68640 240 bits
03 0001101001 1404 63780 160 bits
N/A 1404 63780 9760 bits
0001101001 1404 63780 120 bits
04 0000111011 1404 36570 960 bits
N/A 1404 36180 5000 bits
0000111011 1404 36570 320 bits
05 0001011000 1404 54030 920 bits
N/A 1404 53640 4160 bits
0001011000 1404 54030 440 bits
06 0001000010 1404 44430 9240 bits
N/A 1404 40440 5920 bits
0001000010 1404 42990 1560 bits
07 0001110001 1404 68940 640 bits
N/A 1404 68940 8400 bits
0001110001 1404 68640 240 bits
08 0001101100 1404 68940 11000 bits
N/A 1404 65760 7920 bits
0001101100 1404 68610 2840 bits
09 0001000101 1404 46380 9760 bits
N/A 1404 42360 6520 bits
0001000101 1404 45330 1000 bits
10 0001101111 1404 68940 2000 bits
N/A 1404 67320 520 bits
0001101111 1404 67350 120 bits
11 0000110010 1404 35130 11440 bits
N/A 1404 31140 8440 bits
0000110010 1404 31230 720 bits
12 0001101100 1404 68940 5080 bits
N/A 1404 65640 440 bits
0001101100 1404 68610 1000 bits
13 0001101000 1404 63660 800 bits
N/A 1404 63600 6160 bits
0001101000 1404 63630 760 bits
14 - - -
- - -
- - -
15 0001011110 1404 58230 1960 bits
N/A 1404 57000 3840 bits
0001011110 1404 58230 560 bits
16 0001011111 1404 59250 1880 bits
N/A 1404 58080 1360 bits
0001011111 1404 58110 600 bits
18 - - -
- - -
- - -
19 0001110000 1404 68940 200 bits
N/A 1404 27300 1400 bits
0000101100 1404 27330 360 bits
21 0001000100 1404 45510 8600 bits
N/A 1404 41520 2680 bits
0001000100 1404 45510 2080 bits
23 0001001100 1404 46320 80 bits
N/A 1404 46320 840 bits
0001001011 1404 46260 800 bits
25 0001101100 1404 66030 80 bits
N/A 1404 66060 4000 bits
0001101100 1404 66030 80 bits
26 0001101101 1404 68940 4560 bits
N/A 1404 66060 5840 bits
0001101101 1404 67950 160 bits
27 0001110001 1404 68940 640 bits
N/A 1404 68940 3240 bits
0001110001 1404 68640 240 bits
28 0000110101 1404 32760 400 bits
N/A 1404 32760 3120 bits
0000110101 1404 32730 360 bits
29 0001110001 1404 68940 640 bits
N/A 1404 68940 3640 bits
0001110001 1404 68640 240 bits
30 0001110000 1404 68940 4360 bits
N/A 1404 68220 4240 bits
0001110000 1404 68610 1000 bits
31 0001010100 1404 51600 720 bits
N/A 1404 51600 1920 bits
0001010100 1404 51600 720 bits
32 - - -
- - -
- - -
33 0001110001 1404 68940 640 bits
N/A 1404 68940 3480 bits
0001110001 1404 68640 240 bits
34 0001010100 1404 51210 200 bits
N/A 1404 51180 1640 bits
0001010100 1404 51240 240 bits
36 0001000111 1404 43440 240 bits
N/A 1404 43380 12040 bits
0001000111 1404 43410 200 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