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]

1395 549720

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 9
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 2
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 2
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 1102 10F15 1115 28F02 1102 1902
Key a7488e95fa338a2e7e2f5f13e8f88bd1
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 Not transmitting OSNMA
Key Not transmitting OSNMA
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 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 3602 02F02 3615 25F02 3602 3415
Key a7488e95fa338a2e7e2f5f13e8f88bd1

Authenticated Data

02 0000011010 1395 549690 40 bits
N/A 1395 549660 6640 bits
0000011001 1395 549390 440 bits
03 0000000101 1395 542250 9240 bits
N/A 1395 537540 5240 bits
0000000101 1395 542070 1600 bits
04 0001110000 1395 525480 560 bits
N/A 1395 525420 2080 bits
0001110000 1395 525450 520 bits
05 0000000110 1395 537990 440 bits
N/A 1395 537960 8200 bits
0000000110 1395 537990 440 bits
06 0001110001 1395 529890 9120 bits
N/A 1395 525840 2240 bits
0001110001 1395 529890 480 bits
07 0000010110 1395 547500 320 bits
N/A 1395 547500 3080 bits
0000010110 1395 547500 320 bits
08 0000001101 1395 546030 12000 bits
N/A 1395 542220 4960 bits
0000001101 1395 545850 4840 bits
09 0001111001 1395 533790 6480 bits
N/A 1395 530760 2600 bits
0001111001 1395 533610 920 bits
10 0000010011 1395 549690 17160 bits
N/A 1395 545880 6000 bits
0000010011 1395 549390 3160 bits
11 0000011010 1395 549690 40 bits
N/A 1395 549660 6040 bits
0000011001 1395 549390 440 bits
12 0000010100 1395 549690 7640 bits
N/A 1395 546360 7200 bits
0000010100 1395 549390 1080 bits
13 0001101011 1395 526020 13080 bits
N/A 1395 522360 640 bits
0001101011 1395 525870 4080 bits
14 - - -
- - -
- - -
15 0001100101 1395 522750 9160 bits
N/A 1395 518700 560 bits
0001100101 1395 522630 1280 bits
16 0000010011 1395 549630 9920 bits
N/A 1395 545880 7720 bits
0000010011 1395 549390 2560 bits
18 - - -
- - -
- - -
19 0000011010 1395 549690 40 bits
N/A 1395 549660 840 bits
0000011001 1395 549390 440 bits
21 0001011111 1395 518970 5200 bits
N/A 1395 515220 7000 bits
0001011111 1395 518970 1960 bits
23 0001110101 1395 528150 80 bits
N/A 1395 528060 5040 bits
0001110101 1395 528180 80 bits
25 0000011010 1395 549690 80 bits
N/A 1395 549600 11480 bits
0000011001 1395 549390 440 bits
26 0001111101 1395 532980 160 bits
N/A 1395 532980 6760 bits
0001111101 1395 532980 120 bits
27 0001010011 1395 511110 4880 bits
N/A 1395 507780 5280 bits
0001010011 1395 510270 640 bits
28 0001101010 1395 521940 640 bits
N/A 1395 521880 1880 bits
0001101010 1395 521880 560 bits
29 0000010011 1395 549660 6480 bits
N/A 1395 505980 8520 bits
0001010000 1395 506010 200 bits
30 0000010100 1395 549690 9280 bits
N/A 1395 546000 1520 bits
0000010100 1395 549330 2680 bits
31 0000000011 1395 542070 12960 bits
N/A 1395 536040 8480 bits
0000000011 1395 537030 1000 bits
32 - - -
- - -
- - -
33 0000000101 1395 542460 7200 bits
N/A 1395 537480 5400 bits
0000000101 1395 537510 600 bits
34 0000010100 1395 549690 11760 bits
N/A 1395 546060 280 bits
0000010100 1395 549390 1960 bits
36 0000011010 1395 549690 40 bits
N/A 1395 549660 3720 bits
0000011001 1395 549390 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 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