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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]

1408 507870

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 13
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 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0407 31F15 2315 0407 2815 2315
Key c1a3ce198889c0de78e8976b63db537f
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0907 31F15 0615 0907 0515 0615
Key c1a3ce198889c0de78e8976b63db537f
SVID 13
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 23F15 2815 1400 3115 2815
Key c1a3ce198889c0de78e8976b63db537f
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 19
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1907 26F15 2815 1907 2915 2815
Key c1a3ce198889c0de78e8976b63db537f
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2107 28F15 1315 2107 1507 1315
Key c1a3ce198889c0de78e8976b63db537f
SVID 23
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2707 32F15 1315 2707 1507 1315
Key c1a3ce198889c0de78e8976b63db537f
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

Authenticated Data

02 0000111000 1408 491970 640 bits
N/A 1408 491940 8960 bits
0000111000 1408 491970 680 bits
03 0000100100 1408 480060 520 bits
N/A 1408 479760 2120 bits
0000100100 1408 479790 440 bits
04 0001010011 1408 507840 240 bits
N/A 1408 507840 3480 bits
0001010010 1408 507540 200 bits
05 0000010100 1408 470430 600 bits
N/A 1408 470400 8440 bits
0000010100 1408 470400 560 bits
06 0001010010 1408 507840 1600 bits
N/A 1408 507180 2600 bits
0001010010 1408 507510 280 bits
07 0001000100 1408 498720 80 bits
N/A 1408 498720 10280 bits
0001000100 1408 498780 120 bits
08 0000110101 1408 489870 280 bits
N/A 1408 489840 3800 bits
0000110101 1408 489870 280 bits
09 0001010011 1408 507840 240 bits
N/A 1408 507840 520 bits
0001010010 1408 507540 120 bits
10 0000111010 1408 496770 10640 bits
N/A 1408 492720 1520 bits
0000111010 1408 495810 2000 bits
11 0001000000 1408 498090 2920 bits
N/A 1408 496560 3360 bits
0001000000 1408 498090 1400 bits
12 0000111101 1408 498240 3880 bits
N/A 1408 494460 5080 bits
0000111101 1408 494490 40 bits
13 0001010010 1408 507840 2080 bits
N/A 1408 507300 4360 bits
0001010010 1408 507510 480 bits
14 - - -
- - -
- - -
15 0001010011 1408 507840 280 bits
N/A 1408 507780 3280 bits
0001010010 1408 507540 640 bits
16 0000011010 1408 477810 19280 bits
N/A 1408 473820 3680 bits
0000011010 1408 474150 760 bits
18 - - -
- - -
- - -
19 0001010011 1408 507840 240 bits
N/A 1408 507840 6200 bits
0001010010 1408 507540 120 bits
21 0001010011 1408 507840 240 bits
N/A 1408 507840 7680 bits
0001010010 1408 507540 640 bits
23 0001001111 1408 507840 9480 bits
N/A 1408 505740 3560 bits
0001001111 1408 507510 1680 bits
25 0000101001 1408 486750 9880 bits
N/A 1408 482880 3360 bits
0000101001 1408 486510 1360 bits
26 0001010010 1408 507840 440 bits
N/A 1408 488580 8080 bits
0000110011 1408 488580 160 bits
27 0001010011 1408 507840 240 bits
N/A 1408 507840 9040 bits
0001001101 1408 507510 2760 bits
28 0001010000 1408 507840 9280 bits
N/A 1408 505800 2920 bits
0001010000 1408 507510 760 bits
29 0001010000 1408 506400 720 bits
N/A 1408 506340 10720 bits
0001010000 1408 506370 680 bits
30 0001000101 1408 503310 13680 bits
N/A 1408 499260 5360 bits
0001000101 1408 503310 4720 bits
31 0001010010 1408 507840 1760 bits
N/A 1408 507240 1240 bits
0001010010 1408 507270 280 bits
32 0000101001 1408 486510 10920 bits
N/A 1408 482640 1480 bits
0000101001 1408 485130 3000 bits
33 0000111001 1408 492390 440 bits
N/A 1408 492360 9320 bits
0000111001 1408 492390 440 bits
34 0001010010 1408 507210 200 bits
N/A 1408 507180 3320 bits
0001010010 1408 507210 200 bits
36 0001001000 1408 501090 40 bits
N/A 1408 501060 1520 bits
0001000111 1408 501060 680 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