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]

1406 446580

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 6
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 0404 - - - 0404 2115
Key 8982798c579f84871724be52d883b39f
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 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 15
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1504 30F15 1515 13F15 1504 2115
Key 8982798c579f84871724be52d883b39f
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 21F15 1800 13F15 1800 2315
Key 8982798c579f84871724be52d883b39f
SVID 21
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2704 30F15 2715 21F15 2704 1315
Key 8982798c579f84871724be52d883b39f
SVID 30
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 3404 09F15 3415 30F15 3404 0615
Key 8982798c579f84871724be52d883b39f
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3604 09F15 3615 05F15 3604 0615
Key 8982798c579f84871724be52d883b39f

Authenticated Data

02 0001101011 1406 446010 200 bits
N/A 1406 445980 2840 bits
0001101011 1406 445980 160 bits
03 0001010000 1406 429900 320 bits
N/A 1406 429900 9040 bits
0001010000 1406 429960 360 bits
04 0001101100 1406 446550 80 bits
N/A 1406 446520 2680 bits
0001101011 1406 446250 520 bits
05 0001000101 1406 423540 640 bits
N/A 1406 423540 13240 bits
0001000101 1406 423540 640 bits
06 0001100111 1406 446550 9720 bits
N/A 1406 443760 400 bits
0001100111 1406 445590 2120 bits
07 0001011110 1406 438720 880 bits
N/A 1406 438420 1640 bits
0001011110 1406 438450 520 bits
08 0001011000 1406 435030 760 bits
N/A 1406 435000 1560 bits
0001011000 1406 435030 760 bits
09 0001101001 1406 446550 4760 bits
N/A 1406 444600 80 bits
0001101001 1406 446250 120 bits
10 0001010101 1406 437130 14880 bits
N/A 1406 433140 320 bits
0001010101 1406 437130 3320 bits
11 0001011111 1406 439560 320 bits
N/A 1406 438600 3960 bits
0001011110 1406 438630 760 bits
12 0001001111 1406 433290 15200 bits
N/A 1406 429360 7440 bits
0001001111 1406 433170 3880 bits
13 0001101010 1406 446550 3560 bits
N/A 1406 445620 600 bits
0001101010 1406 445650 520 bits
14 - - -
- - -
- - -
15 0001101100 1406 446550 120 bits
N/A 1406 446520 4040 bits
0001101011 1406 446250 520 bits
16 0001001010 1406 429600 12120 bits
N/A 1406 426540 10720 bits
0001001010 1406 426870 880 bits
18 - - -
- - -
- - -
19 0001010111 1406 444000 21720 bits
N/A 1406 394200 2680 bits
0001010111 1406 443970 4640 bits
21 0001101000 1406 446550 8880 bits
N/A 1406 444540 1000 bits
0001101000 1406 446250 1040 bits
23 0000101101 1406 409200 720 bits
N/A 1406 409200 4360 bits
0000101101 1406 409200 720 bits
25 0001011011 1406 436770 680 bits
N/A 1406 436740 560 bits
0001011011 1406 436740 640 bits
26 0000111101 1406 418320 40 bits
N/A 1406 418320 1840 bits
0000111101 1406 418320 80 bits
27 0001101100 1406 446550 120 bits
N/A 1406 446520 7120 bits
0001101011 1406 446250 520 bits
28 0001101000 1406 444600 640 bits
N/A 1406 444600 3040 bits
0001101000 1406 444600 680 bits
29 0001011010 1406 444690 19200 bits
N/A 1406 435720 2040 bits
0001011010 1406 441810 4000 bits
30 0001101000 1406 446550 11720 bits
N/A 1406 444480 6360 bits
0001101000 1406 446250 4080 bits
31 0000111000 1406 419250 5320 bits
N/A 1406 415260 5440 bits
0000111000 1406 415470 120 bits
32 0001010101 1406 432990 440 bits
N/A 1406 432960 200 bits
0001010101 1406 432990 440 bits
33 0001000111 1406 424350 120 bits
N/A 1406 424200 2480 bits
0001000111 1406 424320 80 bits
34 0001101100 1406 446550 120 bits
N/A 1406 446520 7000 bits
0001101011 1406 446250 520 bits
36 0001101100 1406 446550 120 bits
N/A 1406 446520 3720 bits
0001101011 1406 446250 80 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