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]

1401 579750

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 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 0403 21F15 2803 0403 0615 2803
Key a57493ca0e056ec69e9ca9afcc497861
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 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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 12
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2315 29F15 1915 2315 2803 1915
Key a57493ca0e056ec69e9ca9afcc497861
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2703 - - 2703 - -
Key a57493ca0e056ec69e9ca9afcc497861
SVID 28
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
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3603 34F15 0903 3603 0615 0903
Key a57493ca0e056ec69e9ca9afcc497861

Authenticated Data

02 0000110100 1401 566700 1840 bits
N/A 1401 525720 1640 bits
0000101011 1401 563130 160 bits
03 0000011011 1401 550860 80 bits
N/A 1401 549900 5040 bits
0000011010 1401 549870 280 bits
04 0001001100 1401 579720 80 bits
N/A 1401 579720 4360 bits
0001001011 1401 579420 480 bits
05 0000000110 1401 541470 8040 bits
N/A 1401 537900 400 bits
0000000110 1401 539550 1200 bits
06 0001000111 1401 579720 16840 bits
N/A 1401 576660 3560 bits
0001000111 1401 579390 3880 bits
07 0000110110 1401 566520 80 bits
N/A 1401 566460 400 bits
0000110110 1401 566610 120 bits
08 0000101000 1401 562470 7440 bits
N/A 1401 558480 5800 bits
0000101000 1401 561030 1200 bits
09 0001001100 1401 579720 160 bits
N/A 1401 579600 2600 bits
0001001011 1401 579420 480 bits
10 0001001000 1401 579630 4280 bits
N/A 1401 577380 2440 bits
0001001000 1401 578130 560 bits
11 0001000111 1401 579720 14440 bits
N/A 1401 576600 3680 bits
0001000111 1401 578610 1760 bits
12 0001001001 1401 578850 680 bits
N/A 1401 578100 5480 bits
0001001001 1401 578130 280 bits
13 0000100100 1401 556110 560 bits
N/A 1401 555960 11600 bits
0000100100 1401 556170 640 bits
14 - - -
- - -
- - -
15 0000010010 1401 548370 12280 bits
N/A 1401 544980 7640 bits
0000010010 1401 547290 4520 bits
16 0000110001 1401 563700 320 bits
N/A 1401 563700 6560 bits
0000110001 1401 563670 280 bits
18 - - -
- - -
- - -
19 0001000111 1401 579720 13080 bits
N/A 1401 576660 5240 bits
0001000111 1401 579390 3600 bits
21 0001001011 1401 579720 1080 bits
N/A 1401 579540 2760 bits
0001001011 1401 579420 480 bits
23 0001000110 1401 579660 6840 bits
N/A 1401 576540 800 bits
0001000110 1401 576570 680 bits
25 0000110000 1401 566730 8080 bits
N/A 1401 562920 1920 bits
0000110000 1401 564150 1280 bits
26 0000110100 1401 566490 640 bits
N/A 1401 565320 840 bits
0000110100 1401 565500 200 bits
27 0001001100 1401 579720 40 bits
N/A 1401 579720 4320 bits
0001001011 1401 579420 440 bits
28 0001001100 1401 579720 80 bits
N/A 1401 579660 4040 bits
0001001011 1401 579420 480 bits
29 0001000000 1401 576750 10720 bits
N/A 1401 572880 3960 bits
0001000000 1401 576690 3120 bits
30 0001000001 1401 576030 7560 bits
N/A 1401 571740 1840 bits
0001000001 1401 575610 920 bits
31 0000101011 1401 564330 9240 bits
N/A 1401 560220 7840 bits
0000101011 1401 563430 560 bits
32 - - -
- - -
- - -
33 0000111010 1401 573330 3000 bits
N/A 1401 569340 1560 bits
0000111010 1401 569370 680 bits
34 0001000101 1401 579720 2040 bits
N/A 1401 533820 8760 bits
0001000101 1401 579390 360 bits
36 0001001100 1401 579720 80 bits
N/A 1401 579720 4440 bits
0001001011 1401 579420 480 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