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]

1407 379680

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 11
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 3
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 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 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 16
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 25
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2514 11F15 2515 10F15 2514 1214
Key 2ccbe2cc37c90a05f4c92ac649440339
SVID 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 29
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2914 26F15 2915 19F15 2914 0714
Key 2ccbe2cc37c90a05f4c92ac649440339
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3314 19F15 3315 26F15 3314 1214
Key 2ccbe2cc37c90a05f4c92ac649440339

Authenticated Data

02 0000111111 1407 343320 80 bits
N/A 1407 343320 16280 bits
0000111111 1407 343320 80 bits
03 0001100111 1407 370800 8360 bits
N/A 1407 367440 6000 bits
0001100111 1407 369270 720 bits
04 0001010001 1407 354510 160 bits
N/A 1407 354480 2560 bits
0001010001 1407 354510 160 bits
05 0001011101 1407 361770 600 bits
N/A 1407 361800 2880 bits
0001011101 1407 361800 720 bits
06 0001010010 1407 354930 360 bits
N/A 1407 354840 2680 bits
0001010010 1407 354900 320 bits
07 0001111011 1407 379620 520 bits
N/A 1407 379560 7880 bits
0001111011 1407 379350 120 bits
08 0001110101 1407 377010 3600 bits
N/A 1407 375720 5200 bits
0001110101 1407 376170 240 bits
09 0001010101 1407 357030 400 bits
N/A 1407 356940 1040 bits
0001010101 1407 357000 360 bits
10 0001111000 1407 379650 7160 bits
N/A 1407 377460 480 bits
0001111000 1407 379350 1320 bits
11 0001111001 1407 379650 360 bits
N/A 1407 339540 5480 bits
0000111000 1407 339540 640 bits
12 0001111011 1407 379650 520 bits
N/A 1407 379620 6760 bits
0001111011 1407 379350 120 bits
13 0001110001 1407 373710 600 bits
N/A 1407 373680 12240 bits
0001110001 1407 373680 560 bits
14 - - -
- - -
- - -
15 0001011011 1407 364170 17640 bits
N/A 1407 360180 7560 bits
0001011011 1407 362610 3960 bits
16 0001110110 1407 379650 7120 bits
N/A 1407 376560 4160 bits
0001110110 1407 377490 1480 bits
18 - - -
- - -
- - -
19 0001111000 1407 379650 8360 bits
N/A 1407 377520 1720 bits
0001111000 1407 379350 3240 bits
21 0001100010 1407 368670 14000 bits
N/A 1407 364680 8040 bits
0001100010 1407 368670 1480 bits
23 0001110001 1407 373830 720 bits
N/A 1407 373800 6640 bits
0001110001 1407 373770 680 bits
25 0001111011 1407 379650 520 bits
N/A 1407 379620 1960 bits
0001111011 1407 379350 120 bits
26 0001111010 1407 379650 2600 bits
N/A 1407 378960 12480 bits
0001111010 1407 379350 680 bits
27 0001011100 1407 360930 360 bits
N/A 1407 360900 7480 bits
0001011100 1407 360930 360 bits
28 0001110101 1407 379650 6320 bits
N/A 1407 352800 1680 bits
0001110101 1407 377850 160 bits
29 0001111011 1407 379650 520 bits
N/A 1407 379620 4920 bits
0001111011 1407 379350 120 bits
30 0001001111 1407 353130 360 bits
N/A 1407 353100 4400 bits
0001001111 1407 353130 360 bits
31 0001111000 1407 377880 240 bits
N/A 1407 377880 3800 bits
0001111000 1407 377880 280 bits
32 0001101111 1407 372270 280 bits
N/A 1407 372240 3600 bits
0001101111 1407 372270 280 bits
33 0001111011 1407 379650 520 bits
N/A 1407 379620 7080 bits
0001111011 1407 379350 120 bits
34 0001010000 1407 355650 4560 bits
N/A 1407 353940 5120 bits
0001010000 1407 355470 2040 bits
36 0001000100 1407 346620 480 bits
N/A 1407 346560 200 bits
0001000100 1407 346590 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 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