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]

1386 127860

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 0415 23F15 0415 09F15 0415 2115
Key 3598b0e61ab184228ef1fa63a8d37cc1
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0615 09F15 0615 23F15 0615 2115
Key 3598b0e61ab184228ef1fa63a8d37cc1
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1315 27F15 1315 21F15 1315 0715
Key 3598b0e61ab184228ef1fa63a8d37cc1
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1515 27F15 1515 34F15 1515 2115
Key 3598b0e61ab184228ef1fa63a8d37cc1
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 Not transmitting OSNMA
Key Not transmitting OSNMA
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3015 27F15 3015 03F15 3015 3415
Key 3598b0e61ab184228ef1fa63a8d37cc1
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001000101 1386 121950 7440 bits
N/A 1386 118680 10160 bits
0001000101 1386 121770 2560 bits
03 0000110001 1386 109890 9960 bits
N/A 1386 106440 8400 bits
0000110001 1386 108210 680 bits
04 0001010100 1386 127830 760 bits
N/A 1386 127800 1440 bits
0001010100 1386 127530 360 bits
05 0000100110 1386 100200 720 bits
N/A 1386 100200 7520 bits
0000100110 1386 100200 720 bits
06 0001010100 1386 127830 200 bits
N/A 1386 127800 80 bits
0001010001 1386 126870 840 bits
07 0001001000 1386 124380 9760 bits
N/A 1386 120420 8400 bits
0001001000 1386 124290 1440 bits
08 0000111111 1386 115110 600 bits
N/A 1386 115020 14760 bits
0000111111 1386 115080 560 bits
09 0000010101 1386 93060 10000 bits
N/A 1386 89460 840 bits
0000010101 1386 92190 160 bits
10 0000111100 1386 117300 5760 bits
N/A 1386 111420 4160 bits
0000111100 1386 117150 160 bits
11 0000111101 1386 116370 8240 bits
N/A 1386 113520 2520 bits
0000111101 1386 113550 120 bits
12 0000110101 1386 109530 1040 bits
N/A 1386 103080 240 bits
0000110101 1386 109530 240 bits
13 0001010100 1386 127830 760 bits
N/A 1386 127800 2880 bits
0001010100 1386 127530 360 bits
14 - - -
- - -
- - -
15 0001010100 1386 127830 760 bits
N/A 1386 127800 3360 bits
0001010100 1386 127530 360 bits
16 0000101010 1386 102150 120 bits
N/A 1386 102120 5320 bits
0000101010 1386 102120 80 bits
18 - - -
- - -
- - -
19 0001010011 1386 127830 1440 bits
N/A 1386 126660 2800 bits
0001010011 1386 126690 40 bits
21 0001001111 1386 127830 10680 bits
N/A 1386 124620 1440 bits
0001001111 1386 125610 1160 bits
23 0001010001 1386 127830 2920 bits
N/A 1386 86040 2400 bits
0001010001 1386 127530 760 bits
25 0000110111 1386 113190 9680 bits
N/A 1386 110100 9480 bits
0000110111 1386 112290 1520 bits
26 0000100101 1386 103110 10600 bits
N/A 1386 99060 3920 bits
0000100101 1386 103110 960 bits
27 0001010000 1386 127830 13400 bits
N/A 1386 124800 1560 bits
0001010000 1386 127530 5000 bits
28 - - -
- - -
- - -
29 0001010001 1386 126030 320 bits
N/A 1386 126000 160 bits
0001010001 1386 126000 280 bits
30 0001010100 1386 127830 760 bits
N/A 1386 127800 3240 bits
0001010100 1386 127530 360 bits
31 0000011010 1386 96210 7560 bits
N/A 1386 92820 1200 bits
0000011010 1386 95010 1760 bits
32 - - -
- - -
- - -
33 0000101111 1386 105510 80 bits
N/A 1386 105240 2000 bits
0000101111 1386 105330 80 bits
34 0001010001 1386 127830 6040 bits
N/A 1386 125520 600 bits
0001010001 1386 125550 120 bits
36 0001001011 1386 125190 4680 bits
N/A 1386 121980 3480 bits
0001001011 1386 122010 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