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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 37500

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 0208 36F15 0215 30F15 0208 1015
Key 3904fc247710b659562136cf502f7cd3
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 1108 10F15 1115 36F15 1108 1915
Key 3904fc247710b659562136cf502f7cd3
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1208 19F15 1215 10F15 1208 0415
Key 3904fc247710b659562136cf502f7cd3
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1608 06F15 1615 05F15 1608 0415
Key 3904fc247710b659562136cf502f7cd3
SVID 19
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 2508 36F15 2515 10F15 2508 0615
Key 3904fc247710b659562136cf502f7cd3
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3408 36F15 3415 08F15 3408 0515
Key 3904fc247710b659562136cf502f7cd3
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000111101 1394 37470 280 bits
N/A 1394 37440 4880 bits
0000111100 1394 37170 680 bits
03 0000101111 1394 33090 5600 bits
N/A 1394 29100 6120 bits
0000101111 1394 30330 1120 bits
04 0000011001 1394 17340 4200 bits
N/A 1394 15480 3440 bits
0000011001 1394 17070 680 bits
05 0000101010 1394 26850 2120 bits
N/A 1394 26040 7880 bits
0000101010 1394 26790 600 bits
06 0000011110 1394 18840 160 bits
N/A 1394 18720 4080 bits
0000011110 1394 18810 120 bits
07 0000110111 1394 34260 120 bits
N/A 1394 34200 40 bits
0000110111 1394 34230 160 bits
08 0000110001 1394 32310 2640 bits
N/A 1394 30540 3000 bits
0000110001 1394 31710 1440 bits
09 0000100010 1394 23850 3120 bits
N/A 1394 21480 8320 bits
0000100010 1394 21510 600 bits
10 0000111011 1394 37470 6680 bits
N/A 1394 36120 8560 bits
0000111011 1394 37170 800 bits
11 0000111101 1394 37470 280 bits
N/A 1394 37440 3360 bits
0000111100 1394 37170 680 bits
12 0000111101 1394 37470 280 bits
N/A 1394 37440 5080 bits
0000111100 1394 37170 680 bits
13 0000011001 1394 17250 3720 bits
N/A 1394 15780 2320 bits
0000011001 1394 17250 1160 bits
14 - - -
- - -
- - -
15 0000001100 1394 11910 9560 bits
N/A 1394 8160 1640 bits
0000001100 1394 11550 2120 bits
16 0000111101 1394 37470 280 bits
N/A 1394 37440 11560 bits
0000111100 1394 37170 680 bits
18 - - -
- - -
- - -
19 0000111000 1394 37470 2440 bits
N/A 1394 8160 2280 bits
0000111000 1394 37170 640 bits
21 0000001110 1394 13170 14120 bits
N/A 1394 9180 3000 bits
0000001110 1394 13170 4680 bits
23 0000011111 1394 23550 11360 bits
N/A 1394 19560 8080 bits
0000011111 1394 22350 3400 bits
25 0000111101 1394 37470 280 bits
N/A 1394 37440 8960 bits
0000111100 1394 37170 680 bits
26 0000100111 1394 24090 40 bits
N/A 1394 24060 5360 bits
0000100111 1394 24090 40 bits
27 0001110110 1394 3210 4880 bits
N/A 1394 360 8240 bits
0001110110 1394 3210 1640 bits
28 - - -
- - -
- - -
29 0000110110 1394 36330 5080 bits
N/A 1394 33000 360 bits
0000110101 1394 33030 760 bits
30 0000111100 1394 37470 1480 bits
N/A 1394 36660 720 bits
0000111100 1394 36690 40 bits
31 0000110001 1394 30240 240 bits
N/A 1394 30120 8200 bits
0000110001 1394 30210 200 bits
32 - - -
- - -
- - -
33 0000110011 1394 33030 2160 bits
N/A 1394 31380 5120 bits
0000110011 1394 33030 600 bits
34 0000111101 1394 37470 280 bits
N/A 1394 37440 880 bits
0000111100 1394 37170 320 bits
36 0000111010 1394 37470 9120 bits
N/A 1394 35880 3160 bits
0000111010 1394 37170 2520 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