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]

1391 14700

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 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
SVID 2
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0208 03F15 0215 34F15 0208 2715
Key 9d678f9e4758a17536877d5b18fd39cd
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0508 03F15 0515 09F15 0508 1115
Key 9d678f9e4758a17536877d5b18fd39cd
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0808 03F15 0815 26F15 0808 3115
Key 9d678f9e4758a17536877d5b18fd39cd
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 31F15 1208 1115
Key 9d678f9e4758a17536877d5b18fd39cd
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1608 10F15 1615 31F15 1608 1115
Key 9d678f9e4758a17536877d5b18fd39cd
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 03F15 1800 11F15 1800 1015
Key 9d678f9e4758a17536877d5b18fd39cd
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2508 03F15 2515 10F15 2508 1115
Key 9d678f9e4758a17536877d5b18fd39cd
SVID 32
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 31F15 3315 26F15 3308 1015
Key 9d678f9e4758a17536877d5b18fd39cd

Authenticated Data

02 0000010111 1391 14670 280 bits
N/A 1391 14640 3440 bits
0000010110 1391 14370 680 bits
03 0000010101 1391 14670 7600 bits
N/A 1391 13680 7120 bits
0000010101 1391 14370 2240 bits
04 0000000001 1391 1830 760 bits
N/A 1391 1800 640 bits
0000000001 1391 1800 720 bits
05 0000010111 1391 14670 280 bits
N/A 1391 14640 4440 bits
0000010110 1391 14370 400 bits
06 0000001001 1391 6420 480 bits
N/A 1391 6360 3600 bits
0000001001 1391 6390 440 bits
07 0001001010 1390 578730 360 bits
N/A 1390 578700 6800 bits
0001001010 1390 578730 360 bits
08 0000010111 1391 14670 280 bits
N/A 1391 14640 1200 bits
0000010110 1391 14370 680 bits
09 0000001110 1391 10170 1600 bits
N/A 1391 9420 2800 bits
0000001110 1391 9870 800 bits
10 0000010100 1391 14670 3840 bits
N/A 1390 596340 9760 bits
0000010100 1391 14370 440 bits
11 0001101101 1390 600630 440 bits
N/A 1390 599340 7080 bits
0001101100 1390 599370 600 bits
12 0000010111 1391 14670 280 bits
N/A 1391 14640 800 bits
0000010110 1391 14370 680 bits
13 0000001111 1391 10020 480 bits
N/A 1391 9960 4120 bits
0000001111 1391 9990 440 bits
14 - - -
- - -
- - -
15 0000001010 1391 7020 480 bits
N/A 1391 7020 1840 bits
0000001010 1391 7020 480 bits
16 0000010111 1391 14670 280 bits
N/A 1391 14640 5120 bits
0000010110 1391 14370 680 bits
18 - - -
- - -
- - -
19 0001100100 1390 598470 3880 bits
N/A 1390 594480 6600 bits
0001100100 1390 596370 1360 bits
21 0001101111 1390 604290 5560 bits
N/A 1390 600660 2800 bits
0001101111 1390 604290 480 bits
23 0000000100 1391 3900 1600 bits
N/A 1391 3060 1600 bits
0000000100 1391 3810 520 bits
25 0000010111 1391 14670 280 bits
N/A 1391 14640 2400 bits
0000010110 1391 14370 680 bits
26 0000010101 1391 14670 3760 bits
N/A 1391 10140 40 bits
0000010101 1391 13890 280 bits
27 0001100000 1390 591990 360 bits
N/A 1390 591960 3600 bits
0001100000 1390 592050 480 bits
28 - - -
- - -
- - -
29 0001010110 1390 589890 7920 bits
N/A 1390 585900 8880 bits
0001010110 1390 589890 3720 bits
30 0001011000 1390 588600 3360 bits
N/A 1390 546780 13560 bits
0001011000 1390 588510 1080 bits
31 0000010011 1391 12210 200 bits
N/A 1391 12180 3600 bits
0000010011 1391 12210 200 bits
32 - - -
- - -
- - -
33 0000010111 1391 14670 280 bits
N/A 1391 14640 600 bits
0000010110 1391 14370 640 bits
34 0000000110 1391 4320 80 bits
N/A 1391 4260 200 bits
0000000110 1391 4290 40 bits
36 0001110110 1391 480 560 bits
N/A 1391 420 4920 bits
0001110110 1391 450 520 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