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]

1405 331800

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 10
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 7
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 27F15 0715 15F15 0715 3415
Key a0a0aed831a7c44006fa1279d0e65b9a
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 34F15 1400 36F15 1400 2715
Key a0a0aed831a7c44006fa1279d0e65b9a
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1915 10F15 1915 12F15 1915 1115
Key a0a0aed831a7c44006fa1279d0e65b9a
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 23F15 2115 27F15 2115 2615
Key a0a0aed831a7c44006fa1279d0e65b9a
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2815 10F15 2815 12F15 2815 0415
Key a0a0aed831a7c44006fa1279d0e65b9a
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2915 27F15 2915 10F15 2915 1215
Key a0a0aed831a7c44006fa1279d0e65b9a
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3015 27F15 3015 36F15 3015 3415
Key a0a0aed831a7c44006fa1279d0e65b9a
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 0000101011 1405 331440 240 bits
N/A 1405 331500 11640 bits
0000101011 1405 331410 200 bits
03 0000011001 1405 320640 240 bits
N/A 1405 320640 7920 bits
0000011001 1405 320610 200 bits
04 0001101010 1405 293310 400 bits
N/A 1405 293280 1960 bits
0001101010 1405 293310 360 bits
05 0000001000 1405 313020 6320 bits
N/A 1405 310560 2560 bits
0000001000 1405 312870 1600 bits
06 0001110001 1405 297300 320 bits
N/A 1405 297300 5720 bits
0001110001 1405 297300 320 bits
07 0000101011 1405 331770 680 bits
N/A 1405 331740 10280 bits
0000101011 1405 331470 280 bits
08 0000101000 1405 329910 600 bits
N/A 1405 329880 8760 bits
0000101000 1405 329910 600 bits
09 0001110110 1405 302070 3040 bits
N/A 1405 300480 6680 bits
0001110110 1405 302070 960 bits
10 0000101001 1405 331770 5640 bits
N/A 1405 330000 3440 bits
0000101001 1405 331470 1120 bits
11 0000101010 1405 331770 2640 bits
N/A 1405 330780 480 bits
0000101010 1405 330810 200 bits
12 0000100010 1405 330210 13320 bits
N/A 1405 326220 3120 bits
0000100010 1405 329850 3360 bits
13 0000011000 1405 320430 760 bits
N/A 1405 320400 8200 bits
0000011000 1405 320430 760 bits
14 - - -
- - -
- - -
15 0000001111 1405 315810 2920 bits
N/A 1405 314400 4080 bits
0000001111 1405 315690 560 bits
16 0000010000 1405 316710 1240 bits
N/A 1405 315540 2160 bits
0000010000 1405 315570 680 bits
18 - - -
- - -
- - -
19 0000101011 1405 331770 680 bits
N/A 1405 331740 920 bits
0000101011 1405 331470 280 bits
21 0000101011 1405 331770 680 bits
N/A 1405 331740 2600 bits
0000101011 1405 331470 280 bits
23 0001111001 1405 303330 1600 bits
N/A 1405 301980 1160 bits
0001111001 1405 303330 880 bits
25 0000011100 1405 322830 720 bits
N/A 1405 322800 3520 bits
0000011100 1405 322800 680 bits
26 0000011111 1405 324540 640 bits
N/A 1405 324480 8240 bits
0000011111 1405 324510 600 bits
27 0000100110 1405 331770 17920 bits
N/A 1405 328620 4360 bits
0000100110 1405 331470 4440 bits
28 0000101011 1405 331770 680 bits
N/A 1405 331740 520 bits
0000101011 1405 331470 280 bits
29 0000101011 1405 331770 680 bits
N/A 1405 331740 5120 bits
0000101011 1405 331470 280 bits
30 0000101011 1405 331770 680 bits
N/A 1405 331740 4160 bits
0000101011 1405 331470 280 bits
31 0000000010 1405 309150 1560 bits
N/A 1405 306660 240 bits
0000000010 1405 306690 40 bits
32 0000100001 1405 325710 600 bits
N/A 1405 325680 4880 bits
0000100001 1405 325710 560 bits
33 0000100000 1405 328770 8160 bits
N/A 1405 324780 4520 bits
0000100000 1405 324810 200 bits
34 0000000100 1405 308040 240 bits
N/A 1405 307980 600 bits
0000000100 1405 308010 160 bits
36 0000101010 1405 331770 3400 bits
N/A 1405 330600 280 bits
0000101010 1405 331410 520 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