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]

1384 249900

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 8
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0708 29F15 0715 25F15 0708 1015
Key 071d393acb940930ec68335db2bf3471
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 1208 10F15 1215 25F15 1208 2915
Key 071d393acb940930ec68335db2bf3471
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1908 29F15 1915 23F15 1908 2115
Key 071d393acb940930ec68335db2bf3471
SVID 25
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 2608 29F15 2615 21F15 2608 2315
Key 071d393acb940930ec68335db2bf3471
SVID 29
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 3308 29F15 3315 10F15 3308 2515
Key 071d393acb940930ec68335db2bf3471

Authenticated Data

02 0001101100 1384 217980 160 bits
N/A 1384 217980 80 bits
0001101100 1384 217980 160 bits
03 0000010011 1384 243750 11680 bits
N/A 1384 240600 5200 bits
0000010011 1384 243750 920 bits
04 0001110010 1384 221610 400 bits
N/A 1384 178080 920 bits
0001110010 1384 221610 80 bits
05 0000000110 1384 233370 520 bits
N/A 1384 233220 5560 bits
0000000110 1384 233310 560 bits
06 0001110110 1384 226290 7520 bits
N/A 1384 183120 2720 bits
0001101101 1384 219510 280 bits
07 0000100010 1384 249870 280 bits
N/A 1384 249840 9960 bits
0000100001 1384 249570 680 bits
08 0000100001 1384 249270 280 bits
N/A 1384 249240 12960 bits
0000100001 1384 249270 280 bits
09 0001110001 1384 225150 16000 bits
N/A 1384 221160 80 bits
0001110001 1384 225150 3160 bits
10 0000100001 1384 249870 2440 bits
N/A 1384 249420 640 bits
0000100001 1384 249570 600 bits
11 0001100001 1384 214530 6880 bits
N/A 1384 211620 240 bits
0001100001 1384 213930 1160 bits
12 0000100010 1384 249870 280 bits
N/A 1384 249840 1440 bits
0000100001 1384 249570 680 bits
13 0000011111 1384 247980 160 bits
N/A 1384 247980 12120 bits
0000011111 1384 248010 200 bits
14 - - -
- - -
- - -
15 0000001101 1384 240150 12120 bits
N/A 1384 237060 10200 bits
0000001101 1384 237090 40 bits
16 0000100010 1384 249870 280 bits
N/A 1384 249840 3560 bits
0000011100 1384 249450 2320 bits
18 - - -
- - -
- - -
19 0000100010 1384 249870 280 bits
N/A 1384 249840 2320 bits
0000100001 1384 249570 680 bits
21 0000010001 1384 243870 15600 bits
N/A 1384 239460 9920 bits
0000010001 1384 243210 2080 bits
23 0000011000 1384 244080 560 bits
N/A 1384 244080 9520 bits
0000011000 1384 244080 560 bits
25 0000011110 1384 249870 11560 bits
N/A 1384 207660 5640 bits
0000011110 1384 249210 1760 bits
26 0000100010 1384 249870 280 bits
N/A 1384 249840 11880 bits
0000100001 1384 249570 680 bits
27 0000000101 1384 232740 640 bits
N/A 1384 232680 7160 bits
0000000101 1384 232740 640 bits
28 - - -
- - -
- - -
29 0000100000 1384 249870 8120 bits
N/A 1384 248640 5560 bits
0000100000 1384 249570 2360 bits
30 0001111010 1384 226500 320 bits
N/A 1384 226440 4440 bits
0001111010 1384 226530 360 bits
31 0000011110 1384 247290 40 bits
N/A 1384 247260 5600 bits
0000011101 1384 247260 800 bits
32 - - -
- - -
- - -
33 0000100010 1384 249870 280 bits
N/A 1384 249840 7560 bits
0000100001 1384 249570 680 bits
34 0001111000 1384 229230 15040 bits
N/A 1384 225120 1960 bits
0001111000 1384 229230 6400 bits
36 0001101111 1384 221790 1520 bits
N/A 1384 219540 1120 bits
0001101111 1384 221190 320 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