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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]

1411 35520

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 10
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 7
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0702 33F15 0715 02F15 0702 2515
Key 3518e22fe6722961807c7fd4866b66d7
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0802 02F15 0815 25F15 0802 3315
Key 3518e22fe6722961807c7fd4866b66d7
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1202 16F15 1215 25F15 1202 1115
Key 3518e22fe6722961807c7fd4866b66d7
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1302 15F15 1315 21F15 1302 3315
Key 3518e22fe6722961807c7fd4866b66d7
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1902 31F15 1915 21F15 1902 3315
Key 3518e22fe6722961807c7fd4866b66d7
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2602 33F15 2615 21F15 2602 0215
Key 3518e22fe6722961807c7fd4866b66d7
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2902 33F15 2915 31F15 2902 2115
Key 3518e22fe6722961807c7fd4866b66d7
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 0000111000 1411 35490 3280 bits
N/A 1411 6720 3240 bits
0000111000 1411 35190 800 bits
03 0000101111 1411 29430 760 bits
N/A 1411 29400 9920 bits
0000101111 1411 29430 760 bits
04 0000000100 1411 7440 12920 bits
N/A 1411 3120 520 bits
0000000100 1411 7290 2480 bits
05 0000100010 1411 21510 600 bits
N/A 1411 21480 7120 bits
0000100010 1411 21510 600 bits
06 0000001101 1411 12210 8120 bits
N/A 1411 8580 1240 bits
0000001101 1411 8610 200 bits
07 0000111010 1411 35490 40 bits
N/A 1411 35460 7600 bits
0000111001 1411 35190 440 bits
08 0000111010 1411 35490 40 bits
N/A 1411 35460 8360 bits
0000111001 1411 35190 440 bits
09 0000010110 1411 14340 600 bits
N/A 1411 14340 3520 bits
0000010110 1411 14340 560 bits
10 0001101111 1410 600690 40 bits
N/A 1410 600660 4880 bits
0001101111 1410 600690 40 bits
11 0001110110 1411 210 200 bits
N/A 1411 180 7080 bits
0001110110 1411 210 200 bits
12 0000111010 1411 35490 40 bits
N/A 1411 35460 440 bits
0000111001 1411 35190 400 bits
13 0000111010 1411 35490 40 bits
N/A 1411 35460 16560 bits
0000111001 1411 35190 440 bits
14 - - -
- - -
- - -
15 0000101101 1411 27870 280 bits
N/A 1411 27840 14600 bits
0000101101 1411 27870 280 bits
16 0000110100 1411 35490 8680 bits
N/A 1411 32220 1120 bits
0000110100 1411 35190 1800 bits
18 - - -
- - -
- - -
19 0000111010 1411 35490 40 bits
N/A 1411 35460 1800 bits
0000111001 1411 35190 440 bits
21 0000100101 1411 27150 18200 bits
N/A 1411 23160 6360 bits
0000100101 1411 27030 2080 bits
23 0000101110 1411 28590 440 bits
N/A 1411 28560 6840 bits
0000101110 1411 28590 440 bits
25 0000110101 1411 35490 8160 bits
N/A 1411 32940 520 bits
0000110101 1411 34350 1440 bits
26 0000111010 1411 35490 40 bits
N/A 1411 35460 12360 bits
0000111001 1411 35190 440 bits
27 0000100000 1411 20130 360 bits
N/A 1411 20100 6080 bits
0000100000 1411 20100 320 bits
28 0000000110 1411 8850 17240 bits
N/A 1411 4740 680 bits
0000000110 1411 8610 2200 bits
29 0000111010 1411 35490 40 bits
N/A 1411 35460 1440 bits
0000111001 1411 35190 440 bits
30 0000010110 1411 14220 440 bits
N/A 1411 14160 4120 bits
0000010110 1411 14130 360 bits
31 0000101101 1411 31710 12480 bits
N/A 1411 27720 2600 bits
0000101101 1411 31410 3080 bits
32 - - -
- - -
- - -
33 0000111001 1411 35490 1640 bits
N/A 1411 35280 7600 bits
0000111001 1411 35190 440 bits
34 0000011100 1411 18060 800 bits
N/A 1411 18060 8000 bits
0000011100 1411 18030 760 bits
36 0000001011 1411 11370 13760 bits
N/A 1411 7380 4480 bits
0000001011 1411 11370 4320 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 4 ADKD types are: ADKD0, ADKD2, 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 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 or may not authenticate their own navigation message (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