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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]

1395 281070

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 0307 33F15 2515 0307 3015 2515
Key 84477b388b0d90e381dc68e8d9ba5235
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0507 10F15 0915 0507 2515 0915
Key 84477b388b0d90e381dc68e8d9ba5235
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0807 30F15 0715 0807 2515 0715
Key 84477b388b0d90e381dc68e8d9ba5235
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 25F15 1215 1400 3315 1215
Key 84477b388b0d90e381dc68e8d9ba5235
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1607 10F15 1215 1607 3315 1215
Key 84477b388b0d90e381dc68e8d9ba5235
SVID 25
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 3107 11F15 1215 3107 3315 1215
Key 84477b388b0d90e381dc68e8d9ba5235
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 0000010111 1395 243090 40 bits
N/A 1395 243060 3520 bits
0000010110 1395 243060 760 bits
03 0001010110 1395 281040 240 bits
N/A 1395 281040 3640 bits
0001010101 1395 280740 640 bits
04 0001001000 1395 273990 7680 bits
N/A 1395 266940 2320 bits
0001001000 1395 272730 80 bits
05 0001010110 1395 281040 240 bits
N/A 1395 281040 4560 bits
0001010101 1395 280740 640 bits
06 0001001100 1395 277620 12080 bits
N/A 1395 275100 6320 bits
0001001100 1395 277590 3640 bits
07 0000011001 1395 248070 13160 bits
N/A 1395 244200 11960 bits
0000011001 1395 246810 1760 bits
08 0001010110 1395 281040 240 bits
N/A 1395 281040 1360 bits
0001010101 1395 280740 640 bits
09 0001010001 1395 278460 800 bits
N/A 1395 278460 7240 bits
0001010001 1395 278460 800 bits
10 0001010100 1395 281040 2480 bits
N/A 1395 279780 2440 bits
0001010100 1395 279810 200 bits
11 0001010011 1395 281040 680 bits
N/A 1395 257340 5000 bits
0000101110 1395 257370 680 bits
12 0001010010 1395 281040 9880 bits
N/A 1395 278400 3280 bits
0001010010 1395 280710 3120 bits
13 0001001001 1395 273480 520 bits
N/A 1395 273420 4240 bits
0001001001 1395 273450 440 bits
14 - - -
- - -
- - -
15 0000111010 1395 265590 4200 bits
N/A 1395 264000 1560 bits
0000111010 1395 265590 520 bits
16 0001010110 1395 281040 240 bits
N/A 1395 281040 7120 bits
0001010101 1395 280740 640 bits
18 - - -
- - -
- - -
19 0000111011 1395 268350 6880 bits
N/A 1395 264600 1800 bits
0000111011 1395 265050 200 bits
21 0000111110 1395 270210 11080 bits
N/A 1395 266760 1960 bits
0000111110 1395 270210 3800 bits
23 0001001011 1395 278550 18680 bits
N/A 1395 274500 7120 bits
0001001011 1395 278250 7920 bits
25 0001010001 1395 281040 14760 bits
N/A 1395 278160 3560 bits
0001010001 1395 280710 4520 bits
26 0001010101 1395 280860 800 bits
N/A 1395 280860 7840 bits
0001010101 1395 280740 640 bits
27 0000101111 1395 261450 10200 bits
N/A 1395 257700 9240 bits
0000101111 1395 260010 1400 bits
28 - - -
- - -
- - -
29 0000101110 1395 257250 520 bits
N/A 1395 257220 12960 bits
0000101110 1395 257250 520 bits
30 0000100011 1395 250860 800 bits
N/A 1395 250860 6440 bits
0000100011 1395 250860 800 bits
31 0001010110 1395 281040 240 bits
N/A 1395 281040 5320 bits
0001010101 1395 280740 640 bits
32 - - -
- - -
- - -
33 0001010001 1395 281040 14400 bits
N/A 1395 278340 6520 bits
0001010001 1395 280710 2360 bits
34 0000110101 1395 263220 4760 bits
N/A 1395 260280 280 bits
0000110101 1395 263190 560 bits
36 0000110010 1395 261810 7040 bits
N/A 1395 259320 3400 bits
0000110010 1395 261210 320 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