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]

1389 110790

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 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 0211 11F15 2515 0211 0715 2515
Key a59a9b2059fc62f135cf3409f28a42da
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0311 10F15 2515 0311 3615 2515
Key a59a9b2059fc62f135cf3409f28a42da
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0811 10F15 2515 0811 0715 2515
Key a59a9b2059fc62f135cf3409f28a42da
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 11
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 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1611 11F15 1215 1611 1015 1215
Key a59a9b2059fc62f135cf3409f28a42da
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 - 2515 1800 1015 2515
Key a59a9b2059fc62f135cf3409f28a42da
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 3311 10F15 0715 3311 1215 0715
Key a59a9b2059fc62f135cf3409f28a42da

Authenticated Data

02 0000111000 1389 110760 400 bits
N/A 1389 110760 3560 bits
0000110111 1389 110460 800 bits
03 0000111000 1389 110760 400 bits
N/A 1389 110760 5920 bits
0000110111 1389 110460 800 bits
04 0000100100 1389 98730 680 bits
N/A 1389 98460 4320 bits
0000100100 1389 98730 80 bits
05 0000110110 1389 109740 640 bits
N/A 1389 109680 6880 bits
0000110110 1389 109710 600 bits
06 0000101011 1389 102690 40 bits
N/A 1389 102540 5600 bits
0000101011 1389 102690 40 bits
07 0001110011 1389 69990 440 bits
N/A 1389 69960 8520 bits
0001110011 1389 69990 440 bits
08 0000111000 1389 110760 400 bits
N/A 1389 110760 2280 bits
0000110111 1389 110460 800 bits
09 0000110001 1389 106320 80 bits
N/A 1389 106320 8480 bits
0000110001 1389 106320 80 bits
10 0000110011 1389 110760 13120 bits
N/A 1389 107520 1000 bits
0000110011 1389 107550 120 bits
11 0000110011 1389 110760 6160 bits
N/A 1389 89220 1440 bits
0000010100 1389 89220 440 bits
12 0000110011 1389 110760 14200 bits
N/A 1389 107460 1520 bits
0000110011 1389 110430 3040 bits
13 0000100101 1389 100500 3560 bits
N/A 1389 99420 720 bits
0000100101 1389 99420 480 bits
14 - - -
- - -
- - -
15 0000100010 1389 100710 5440 bits
N/A 1389 97380 1920 bits
0000100010 1389 100710 920 bits
16 0000111000 1389 110760 400 bits
N/A 1389 110760 8720 bits
0000110111 1389 110460 800 bits
18 - - -
- - -
- - -
19 0000010011 1389 88800 640 bits
N/A 1389 88740 680 bits
0000010011 1389 88770 680 bits
21 0000011000 1389 91800 720 bits
N/A 1389 91800 600 bits
0000011000 1389 91800 720 bits
23 0000100110 1389 100230 680 bits
N/A 1389 100200 5960 bits
0000100110 1389 100200 680 bits
25 0000110100 1389 110760 16960 bits
N/A 1389 108240 7920 bits
0000110100 1389 110430 5480 bits
26 0000101111 1389 105600 600 bits
N/A 1389 105600 4000 bits
0000101111 1389 105600 720 bits
27 0000001010 1389 83610 600 bits
N/A 1389 83280 4600 bits
0000001010 1389 83610 440 bits
28 - - -
- - -
- - -
29 0000000100 1389 82710 7920 bits
N/A 1389 79380 14200 bits
0000000100 1389 79710 320 bits
30 0001110111 1389 76230 11320 bits
N/A 1389 72360 720 bits
0001110111 1389 76230 4560 bits
31 0000110101 1389 109230 760 bits
N/A 1389 109200 4320 bits
0000110101 1389 109230 760 bits
32 - - -
- - -
- - -
33 0000111000 1389 110760 400 bits
N/A 1389 110760 4280 bits
0000110111 1389 110460 800 bits
34 0000100000 1389 96270 280 bits
N/A 1389 96240 3480 bits
0000100000 1389 96240 240 bits
36 0000011011 1389 93210 200 bits
N/A 1389 93180 2200 bits
0000011011 1389 93210 160 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