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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 261900

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 4
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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0608 04F15 0615 23F15 0608 3115
Key 69b0a954ccb6f81dae8816957ad50cd2
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0908 04F15 0915 23F15 0908 3415
Key 69b0a954ccb6f81dae8816957ad50cd2
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1503 27F08 1515 21F15 1503 3415
Key 69b0a954ccb6f81dae8816957ad50cd2
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 27F08 1800 21F15 1800 1308
Key 69b0a954ccb6f81dae8816957ad50cd2
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
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 34
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 0001111001 1395 229770 13840 bits
N/A 1395 225780 2960 bits
0001111001 1395 225810 200 bits
04 0000110101 1395 261870 2160 bits
N/A 1395 261180 880 bits
0000110101 1395 261570 480 bits
05 0001110000 1395 221580 3240 bits
N/A 1395 220260 2000 bits
0001110000 1395 221070 200 bits
06 0000110110 1395 261870 280 bits
N/A 1395 261840 1320 bits
0000110101 1395 261570 680 bits
07 0000011001 1395 248070 13160 bits
N/A 1395 244200 11960 bits
0000011001 1395 246810 1760 bits
08 0000001101 1395 237390 400 bits
N/A 1395 237420 10640 bits
0000001101 1395 237420 440 bits
09 0000110110 1395 261870 280 bits
N/A 1395 261840 600 bits
0000110101 1395 261570 680 bits
10 0000101011 1395 255660 800 bits
N/A 1395 255600 3640 bits
0000101011 1395 255630 760 bits
11 0000101110 1395 257370 680 bits
N/A 1395 257340 5000 bits
0000101110 1395 257370 680 bits
12 0000101001 1395 253950 80 bits
N/A 1395 253800 6040 bits
0000101001 1395 253920 40 bits
13 0000001011 1395 235890 40 bits
N/A 1395 235860 10440 bits
0000001010 1395 235860 800 bits
14 - - -
- - -
- - -
15 0000110110 1395 261870 80 bits
N/A 1395 261840 120 bits
0000110011 1395 261570 1200 bits
16 0000000110 1395 236790 9240 bits
N/A 1395 232980 160 bits
0000000110 1395 233850 640 bits
18 - - -
- - -
- - -
19 0000110101 1395 261330 360 bits
N/A 1395 261300 600 bits
0000110101 1395 261330 360 bits
21 0000110101 1395 261870 1320 bits
N/A 1395 261240 920 bits
0000110101 1395 261270 280 bits
23 0000110011 1395 261870 8120 bits
N/A 1395 260220 240 bits
0000110011 1395 261330 2280 bits
25 0000000000 1395 233520 10240 bits
N/A 1395 193740 8240 bits
0000000000 1395 233430 1680 bits
26 0000010111 1395 247230 13640 bits
N/A 1395 242460 14160 bits
0000010111 1395 246750 3360 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 0000110100 1395 261870 3040 bits
N/A 1395 260700 560 bits
0000110100 1395 260730 360 bits
32 - - -
- - -
- - -
33 0000100000 1395 249060 800 bits
N/A 1395 248940 12120 bits
0000100000 1395 248970 680 bits
34 0000110101 1395 261870 1160 bits
N/A 1395 260280 280 bits
0000110101 1395 261570 200 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