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]

1394 536970

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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0715 10F15 0215 0715 2615 0215
Key 8b61c9c2831991662d30da8c70d5d782
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0815 10F15 0215 0815 0315 0215
Key 8b61c9c2831991662d30da8c70d5d782
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 1115 02F15 1615 1115 1015 1615
Key 8b61c9c2831991662d30da8c70d5d782
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1215 26F15 1015 1215 1615 1015
Key 8b61c9c2831991662d30da8c70d5d782
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2515 03F15 1015 2515 1615 1015
Key 8b61c9c2831991662d30da8c70d5d782
SVID 32
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3615 10F15 0315 3615 1615 0315
Key 8b61c9c2831991662d30da8c70d5d782

Authenticated Data

02 0000000010 1394 536940 6800 bits
N/A 1394 535380 2400 bits
0000000010 1394 536610 1000 bits
03 0001111110 1394 536940 11120 bits
N/A 1394 533640 4840 bits
0001111110 1394 536610 2320 bits
04 0001101001 1394 521190 600 bits
N/A 1394 520800 1000 bits
0001101001 1394 520890 40 bits
05 0000000000 1394 534270 280 bits
N/A 1394 534240 4760 bits
0000000000 1394 534270 280 bits
06 0001101111 1394 524850 80 bits
N/A 1394 524820 520 bits
0001101111 1394 524850 80 bits
07 0000000100 1394 536940 640 bits
N/A 1394 536940 1080 bits
0000000100 1394 536640 240 bits
08 0000000100 1394 536940 640 bits
N/A 1394 536940 5400 bits
0000000100 1394 536640 240 bits
09 0001110100 1394 531870 19840 bits
N/A 1394 527880 3240 bits
0001110100 1394 531690 2200 bits
10 0001111110 1394 536940 14920 bits
N/A 1394 533760 3440 bits
0001111110 1394 536610 3320 bits
11 0000000100 1394 536940 640 bits
N/A 1394 536940 4160 bits
0000000100 1394 536640 240 bits
12 0000000100 1394 536940 640 bits
N/A 1394 536940 4120 bits
0000000100 1394 536640 240 bits
13 0001101100 1394 522690 40 bits
N/A 1394 520140 280 bits
0001101011 1394 522270 40 bits
14 - - -
- - -
- - -
15 0001101001 1394 521220 480 bits
N/A 1394 521160 1160 bits
0001101001 1394 521160 400 bits
16 0001111110 1394 536940 17520 bits
N/A 1394 533820 6320 bits
0001111110 1394 536610 2120 bits
18 - - -
- - -
- - -
19 0001010101 1394 511890 7760 bits
N/A 1394 509220 13720 bits
0001010101 1394 509730 760 bits
21 0001011101 1394 514800 3560 bits
N/A 1394 513600 5440 bits
0001011101 1394 514770 800 bits
23 0001101011 1394 522510 600 bits
N/A 1394 522480 1880 bits
0001101011 1394 522510 600 bits
25 0000000100 1394 536940 640 bits
N/A 1394 536940 7640 bits
0000000100 1394 536640 240 bits
26 0001110100 1394 527880 360 bits
N/A 1394 527820 1920 bits
0001110100 1394 527850 320 bits
27 0001010000 1394 507960 6800 bits
N/A 1394 505260 4040 bits
0001010000 1394 507930 1080 bits
28 - - -
- - -
- - -
29 0001000111 1394 504510 8200 bits
N/A 1394 500520 11080 bits
0001000111 1394 504510 240 bits
30 0001000001 1394 497460 600 bits
N/A 1394 497460 680 bits
0001000001 1394 497460 600 bits
31 0001111010 1394 531600 720 bits
N/A 1394 531540 8000 bits
0001111010 1394 531570 680 bits
32 - - -
- - -
- - -
33 0000000011 1394 536190 400 bits
N/A 1394 536160 4000 bits
0000000011 1394 536220 360 bits
34 0001100101 1394 518550 120 bits
N/A 1394 518520 5760 bits
0001100101 1394 518550 120 bits
36 0000000100 1394 536940 640 bits
N/A 1394 536940 800 bits
0000000100 1394 536640 240 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