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 25080

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 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 0514 36F15 0515 03F15 0514 1115
Key f474980143bbe97befe9cc49339defb5
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0814 03F15 0815 33F15 0814 1615
Key f474980143bbe97befe9cc49339defb5
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1014 11F15 1015 16F15 1014 0615
Key f474980143bbe97befe9cc49339defb5
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 1214 16F15 1215 11F15 1214 3315
Key f474980143bbe97befe9cc49339defb5
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 2514 03F15 2515 16F15 2514 3315
Key f474980143bbe97befe9cc49339defb5
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3114 33F15 3115 16F15 3114 1115
Key f474980143bbe97befe9cc49339defb5
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 Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001011110 1393 591390 1120 bits
N/A 1393 590880 3520 bits
0001011110 1393 590940 640 bits
03 0000100110 1394 25050 5960 bits
N/A 1394 23640 4960 bits
0000100110 1394 24750 2120 bits
04 0000011001 1394 17340 4200 bits
N/A 1394 15480 3440 bits
0000011001 1394 17070 680 bits
05 0000101000 1394 25050 520 bits
N/A 1394 25020 7200 bits
0000101000 1394 24750 120 bits
06 0000011110 1394 18840 160 bits
N/A 1394 18720 4080 bits
0000011110 1394 18810 120 bits
07 0001100110 1393 595380 160 bits
N/A 1393 595380 11880 bits
0001100110 1393 595380 160 bits
08 0000101000 1394 25050 520 bits
N/A 1394 25020 880 bits
0000101000 1394 24750 120 bits
09 0000100010 1394 23850 3120 bits
N/A 1394 21480 8320 bits
0000100010 1394 21510 600 bits
10 0000101000 1394 25050 520 bits
N/A 1394 25020 2640 bits
0000101000 1394 24750 120 bits
11 0000100100 1394 25050 7480 bits
N/A 1394 600 4480 bits
0000100100 1394 24750 840 bits
12 0000101000 1394 25050 520 bits
N/A 1394 25020 2280 bits
0000101000 1394 24750 120 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 0000100100 1394 25050 12240 bits
N/A 1394 22620 6440 bits
0000100100 1394 24750 1640 bits
18 - - -
- - -
- - -
19 0000001100 1394 8160 120 bits
N/A 1394 8160 2280 bits
0000001100 1394 8160 120 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 0000101000 1394 25050 520 bits
N/A 1394 25020 3320 bits
0000101000 1394 24750 120 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 0001110110 1394 4050 5360 bits
N/A 1394 240 6400 bits
0001110110 1394 4050 720 bits
30 0001101001 1393 599850 3120 bits
N/A 1393 597480 6240 bits
0001101001 1393 597510 600 bits
31 0000101000 1394 25050 520 bits
N/A 1394 25020 7440 bits
0000101000 1394 24750 120 bits
32 - - -
- - -
- - -
33 0000100100 1394 25050 8840 bits
N/A 1394 22560 4560 bits
0000100100 1394 24750 1640 bits
34 0000001000 1394 8070 3480 bits
N/A 1394 3300 520 bits
0000001000 1394 7350 1040 bits
36 0000000100 1394 4800 1800 bits
N/A 1394 3240 480 bits
0000000100 1394 3210 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