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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]

1400 493080

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 11
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0814 03F15 0815 05F15 0814 2915
Key 2c6d72c288ec1ddc17246b29723fabe8
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1314 03F15 1315 31F15 1314 0515
Key 2c6d72c288ec1ddc17246b29723fabe8
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1510 03F15 1515 05F15 1510 3615
Key 2c6d72c288ec1ddc17246b29723fabe8
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1614 05F15 1615 31F15 1614 0315
Key 2c6d72c288ec1ddc17246b29723fabe8
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2514 05F15 2515 36F15 2514 0315
Key 2c6d72c288ec1ddc17246b29723fabe8
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
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 34
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3414 36F15 3415 03F15 3414 0515
Key 2c6d72c288ec1ddc17246b29723fabe8

Authenticated Data

02 0000011101 1400 475530 400 bits
N/A 1400 475200 7120 bits
0000011100 1400 475230 760 bits
03 0000111001 1400 493050 3520 bits
N/A 1400 492540 3840 bits
0000111001 1400 492750 840 bits
04 0000100011 1400 482370 6760 bits
N/A 1400 478980 360 bits
0000100011 1400 482190 720 bits
05 0000110101 1400 493050 16560 bits
N/A 1400 490080 4160 bits
0000110101 1400 492750 2760 bits
06 0000101010 1400 486570 5920 bits
N/A 1400 483000 2360 bits
0000101010 1400 484710 1040 bits
07 0000000001 1400 459030 120 bits
N/A 1400 453720 240 bits
0000000001 1400 459030 80 bits
08 0000111010 1400 493050 520 bits
N/A 1400 493020 3720 bits
0000111010 1400 492750 120 bits
09 0000101111 1400 489810 9960 bits
N/A 1400 486540 2240 bits
0000101111 1400 489810 2560 bits
10 0000010111 1400 475290 8640 bits
N/A 1400 472020 7240 bits
0000010111 1400 475290 1280 bits
11 0000100011 1400 479430 240 bits
N/A 1400 479400 120 bits
0000100011 1400 479400 160 bits
12 0000001100 1400 471450 14440 bits
N/A 1400 465540 6520 bits
0000001100 1400 471450 1600 bits
13 0000111010 1400 493050 520 bits
N/A 1400 493020 5280 bits
0000111010 1400 492750 120 bits
14 - - -
- - -
- - -
15 0000111010 1400 493050 360 bits
N/A 1400 493020 1720 bits
0000110011 1400 492750 6720 bits
16 0000111010 1400 493050 520 bits
N/A 1400 493020 1720 bits
0000111010 1400 492750 120 bits
18 - - -
- - -
- - -
19 0000010111 1400 475410 9720 bits
N/A 1400 471960 4440 bits
0000010111 1400 475170 2360 bits
21 0000011101 1400 479340 880 bits
N/A 1400 438600 2600 bits
0001011110 1400 438630 760 bits
23 0000101000 1400 483270 1200 bits
N/A 1400 482160 360 bits
0000101000 1400 482190 440 bits
25 0000111010 1400 493050 520 bits
N/A 1400 493020 1600 bits
0000111010 1400 492750 120 bits
26 0001101111 1400 450690 5400 bits
N/A 1400 448680 8120 bits
0001101111 1400 448770 640 bits
27 0000100010 1400 481410 6000 bits
N/A 1400 478200 760 bits
0000100010 1400 480630 1600 bits
28 0000011101 1400 476670 760 bits
N/A 1400 475380 5920 bits
0000011101 1400 475410 200 bits
29 0000001001 1400 466590 4240 bits
N/A 1400 463320 2840 bits
0000001001 1400 465090 520 bits
30 0000011110 1400 479490 12120 bits
N/A 1400 476280 2960 bits
0000011110 1400 478230 2400 bits
31 0000110110 1400 493050 7000 bits
N/A 1400 490260 2120 bits
0000110110 1400 490290 40 bits
32 - - -
- - -
- - -
33 0000000010 1400 459480 520 bits
N/A 1400 459420 7800 bits
0000000010 1400 459450 480 bits
34 0000111010 1400 493050 520 bits
N/A 1400 493020 5000 bits
0000111010 1400 492750 120 bits
36 0000110001 1400 487290 40 bits
N/A 1400 487200 2720 bits
0000110000 1400 487230 760 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