Input Options:

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]

1385 39000

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 8
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 0315 25F15 0315 13F15 0315 3115
Key 53ddc940bbd6adc33545b69b03c9db02
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0515 25F15 0515 31F15 0515 0215
Key 53ddc940bbd6adc33545b69b03c9db02
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0915 11F15 0915 10F15 0915 0415
Key 53ddc940bbd6adc33545b69b03c9db02
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 31F15 1400 12F15 1400 1015
Key 53ddc940bbd6adc33545b69b03c9db02
SVID 16
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1615 25F15 1615 31F15 1615 1215
Key 53ddc940bbd6adc33545b69b03c9db02
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2315 31F15 2315 12F15 2315 1015
Key 53ddc940bbd6adc33545b69b03c9db02
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2615 31F15 2615 13F15 2615 1215
Key 53ddc940bbd6adc33545b69b03c9db02
SVID 31
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 3315 31F15 3315 12F15 3315 1015
Key 53ddc940bbd6adc33545b69b03c9db02

Authenticated Data

02 0000001011 1385 7770 680 bits
N/A 1385 7740 4520 bits
0000001011 1385 7770 680 bits
03 0000111111 1385 38970 680 bits
N/A 1385 38940 1520 bits
0000111111 1385 38670 280 bits
04 0000110101 1385 36750 11440 bits
N/A 1385 32760 8760 bits
0000110101 1385 33210 640 bits
05 0000111111 1385 38970 680 bits
N/A 1385 38940 560 bits
0000111111 1385 38670 280 bits
06 0000111111 1385 38610 200 bits
N/A 1385 38580 1240 bits
0000111111 1385 38580 160 bits
07 0000010011 1385 14430 6000 bits
N/A 1385 12060 3800 bits
0000010011 1385 14010 1240 bits
08 0000000100 1385 4710 5920 bits
N/A 1385 3540 1720 bits
0000000100 1385 4530 2280 bits
09 0000111111 1385 38970 680 bits
N/A 1385 38940 1600 bits
0000111111 1385 38670 280 bits
10 0000011001 1385 17760 2160 bits
N/A 1385 15960 4600 bits
0000011001 1385 15990 440 bits
11 0000011001 1385 18240 4800 bits
N/A 1385 15840 2560 bits
0000011001 1385 17790 1480 bits
12 0000111100 1385 38970 13400 bits
N/A 1385 12180 5880 bits
0000111100 1385 36870 40 bits
13 0000111100 1385 38970 10120 bits
N/A 1385 36600 360 bits
0000111100 1385 38550 1120 bits
14 - - -
- - -
- - -
15 0000110001 1385 33390 11360 bits
N/A 1385 25560 1520 bits
0000110001 1385 32670 3520 bits
16 0000111111 1385 38970 680 bits
N/A 1385 38940 1480 bits
0000111111 1385 38670 280 bits
18 - - -
- - -
- - -
19 0000101100 1385 31170 11440 bits
N/A 1385 27180 9600 bits
0000101100 1385 31170 1280 bits
21 0000110110 1385 36600 15600 bits
N/A 1385 33360 12680 bits
0000110110 1385 36510 5800 bits
23 0000111111 1385 38970 680 bits
N/A 1385 38940 1920 bits
0000111111 1385 38670 280 bits
25 0001110011 1385 2250 11840 bits
N/A 1384 603120 4320 bits
0001110011 1385 2010 760 bits
26 0000111111 1385 38970 680 bits
N/A 1385 38940 1760 bits
0000111111 1385 38670 280 bits
27 0000100110 1385 27450 11480 bits
N/A 1385 23520 10720 bits
0000100110 1385 27450 4600 bits
28 - - -
- - -
- - -
29 0000100100 1385 22620 480 bits
N/A 1385 22620 9160 bits
0000100100 1385 22620 480 bits
30 0000010011 1385 16110 5840 bits
N/A 1385 12120 3760 bits
0000010011 1385 14910 680 bits
31 0000111100 1385 38970 16720 bits
N/A 1385 36840 520 bits
0000111100 1385 38670 5200 bits
32 - - -
- - -
- - -
33 0000111111 1385 38970 680 bits
N/A 1385 38940 1720 bits
0000111111 1385 38670 280 bits
34 0000100110 1385 25350 8280 bits
N/A 1385 17520 200 bits
0000100110 1385 25290 800 bits
36 0000100001 1385 20670 280 bits
N/A 1385 20640 2800 bits
0000100001 1385 20670 280 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