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]

1375 28200

Authenticated NMA Status
NMAS OPERATIONAL CID 0 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 29 30 31 33 34 36
Satellites Transmitting OSNMA 7
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 18 19 21 23 25 26 27 29 30 31 33 34 36
SVID 4
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0415 10F15 0415 19F15 0415 1615
Key 18296bdf4a762b0e25ec04cced206242
SVID 7
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1115 10F15 1115 19F15 1115 2515
Key 18296bdf4a762b0e25ec04cced206242
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1205 10F15 1215 19F15 1205 2315
Key 18296bdf4a762b0e25ec04cced206242
SVID 14
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2115 29F15 2115 23F15 2115 0715
Key 18296bdf4a762b0e25ec04cced206242
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2715 29F15 2715 07F15 2715 1915
Key 18296bdf4a762b0e25ec04cced206242
SVID 29
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 3015 29F15 3015 07F15 3015 1915
Key 18296bdf4a762b0e25ec04cced206242
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3315 23F15 3315 26F15 3315 3115
Key 18296bdf4a762b0e25ec04cced206242

Authenticated Data

02 0000101000 1375 24810 160 bits
N/A 1375 24780 3040 bits
0000101000 1375 24810 200 bits
03 0000010001 1375 14730 10680 bits
N/A 1375 10920 4200 bits
0000010001 1375 13470 1840 bits
04 0000101101 1375 28170 680 bits
N/A 1375 28140 960 bits
0000101101 1375 27870 280 bits
05 0000000011 1375 3630 3640 bits
N/A 1375 2580 1280 bits
0000000011 1375 3630 640 bits
06 0001100111 1374 596730 2280 bits
N/A 1374 594960 3680 bits
0001100111 1374 596730 400 bits
07 0000101000 1375 28170 13120 bits
N/A 1375 24600 15360 bits
0000101000 1375 26550 3080 bits
08 0000100001 1375 20910 560 bits
N/A 1375 20880 7600 bits
0000100001 1375 20910 600 bits
09 0001101100 1374 599430 680 bits
N/A 1374 599400 6040 bits
0001101100 1374 599430 680 bits
10 0000101011 1375 28170 6640 bits
N/A 1375 26700 1920 bits
0000101011 1375 27870 1560 bits
11 0000101101 1375 28170 680 bits
N/A 1375 28140 1400 bits
0000101101 1375 27870 280 bits
12 0000101101 1375 28170 160 bits
N/A 1375 28140 5320 bits
0000100111 1375 27210 3160 bits
13 0000011011 1375 21270 12080 bits
N/A 1375 16680 6640 bits
0000011011 1375 21270 3160 bits
14 - - -
- - -
- - -
15 0000001111 1375 9840 280 bits
N/A 1375 9660 5600 bits
0000001111 1375 9690 40 bits
16 0000010001 1375 14850 14800 bits
N/A 1375 10800 560 bits
0000010001 1375 14850 1920 bits
18 - - -
- - -
- - -
19 0000101010 1375 28170 10800 bits
N/A 1375 25860 3400 bits
0000101010 1375 26730 480 bits
21 0000101101 1375 28170 680 bits
N/A 1375 28140 3280 bits
0000101101 1375 27870 280 bits
23 0000000111 1375 6030 5800 bits
N/A 1375 4920 2840 bits
0000000111 1375 6030 1720 bits
25 0000011011 1375 21090 19160 bits
N/A 1375 16260 2840 bits
0000011011 1375 18990 760 bits
26 0000100110 1375 23520 80 bits
N/A 1375 23520 13640 bits
0000100110 1375 23520 80 bits
27 0000101101 1375 28170 680 bits
N/A 1375 28140 4560 bits
0000101101 1375 27870 280 bits
29 0000100111 1375 28170 17680 bits
N/A 1375 24540 7360 bits
0000100111 1375 27870 2600 bits
30 0000101101 1375 28170 680 bits
N/A 1375 28140 7000 bits
0000101101 1375 27870 280 bits
31 0000001011 1375 7710 600 bits
N/A 1375 7680 1760 bits
0000001011 1375 7710 600 bits
33 0000101101 1375 28170 680 bits
N/A 1375 28140 12080 bits
0000101101 1375 27870 280 bits
34 0000000000 1375 990 440 bits
N/A 1375 960 200 bits
0000000000 1375 960 400 bits
36 0001100110 1374 595860 760 bits
N/A 1374 595740 9400 bits
0001100110 1374 595740 640 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.

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