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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 437700

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 5
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 0208 08F15 0215 30F15 0208 2515
Key 357dc41584b365de27297ea9dbaa63e1
SVID 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0308 08F15 0315 30F15 0308 2515
Key 357dc41584b365de27297ea9dbaa63e1
SVID 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0708 33F15 0715 08F15 0708 3015
Key 357dc41584b365de27297ea9dbaa63e1
SVID 8
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1008 16F15 1015 12F15 1008 2515
Key 357dc41584b365de27297ea9dbaa63e1
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1108 16F15 1115 36F15 1108 -
Key 357dc41584b365de27297ea9dbaa63e1
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 30
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001011101 1395 437670 280 bits
N/A 1395 437640 3200 bits
0001011100 1395 437370 600 bits
03 0001011101 1395 437670 280 bits
N/A 1395 437640 1200 bits
0001011100 1395 437370 680 bits
04 0000111010 1395 420630 10720 bits
N/A 1395 416640 8440 bits
0000111010 1395 420450 760 bits
05 0001011011 1395 437370 1920 bits
N/A 1395 436260 280 bits
0001011011 1395 437370 440 bits
06 0001000100 1395 422850 520 bits
N/A 1395 422820 9680 bits
0001000100 1395 422820 480 bits
07 0001011101 1395 437670 280 bits
N/A 1395 437640 2800 bits
0001011100 1395 437370 680 bits
08 0001010111 1395 437670 17600 bits
N/A 1395 434280 280 bits
0001010111 1395 437370 2240 bits
09 0001001100 1395 427590 440 bits
N/A 1395 427560 9280 bits
0001001100 1395 427590 440 bits
10 0001011101 1395 437670 280 bits
N/A 1395 437640 440 bits
0001011100 1395 437370 480 bits
11 0001011101 1395 437670 280 bits
N/A 1395 437640 280 bits
0001011100 1395 437370 160 bits
12 0001011000 1395 437670 5720 bits
N/A 1395 406800 5120 bits
0001011000 1395 436530 1160 bits
13 0001001110 1395 431910 9040 bits
N/A 1395 428580 1240 bits
0001001110 1395 431310 2200 bits
14 - - -
- - -
- - -
15 0001001110 1395 428970 640 bits
N/A 1395 428940 4400 bits
0001001110 1395 428940 600 bits
16 0001011011 1395 437670 2200 bits
N/A 1395 436500 1360 bits
0001011011 1395 437130 680 bits
18 - - -
- - -
- - -
19 0000101010 1395 407730 1600 bits
N/A 1395 406860 5320 bits
0000101010 1395 407730 480 bits
21 0000110100 1395 413400 680 bits
N/A 1395 413340 1000 bits
0000110100 1395 413370 680 bits
23 0001000010 1395 421590 400 bits
N/A 1395 421560 4720 bits
0001000010 1395 421590 400 bits
25 0001011010 1395 437670 6800 bits
N/A 1395 435720 1120 bits
0001011010 1395 436170 360 bits
26 0001010111 1395 435810 2840 bits
N/A 1395 433860 480 bits
0001010111 1395 435810 1240 bits
27 0000101010 1395 408450 2400 bits
N/A 1395 365160 6560 bits
0000101010 1395 407430 360 bits
28 0000110000 1395 414510 10320 bits
N/A 1395 410520 6200 bits
0000110000 1395 412890 2200 bits
29 0000011001 1395 400170 1520 bits
N/A 1395 397020 1600 bits
0000011001 1395 397050 520 bits
30 0001011100 1395 437670 1760 bits
N/A 1395 437160 1800 bits
0001011100 1395 437190 440 bits
31 0001001111 1395 429300 280 bits
N/A 1395 429240 3920 bits
0001001111 1395 429240 240 bits
32 - - -
- - -
- - -
33 0001011100 1395 437670 560 bits
N/A 1395 433440 80 bits
0001011100 1395 437370 80 bits
34 0001001000 1395 425310 600 bits
N/A 1395 425280 7840 bits
0001001000 1395 425310 600 bits
36 0000111110 1395 421230 2000 bits
N/A 1395 419160 8320 bits
0000111110 1395 419190 440 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