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 554340

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 8
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 4
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0615 04F15 0615 05F15 0615 1015
Key ad99f64474756f3d3a54c60ef760f876
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0915 04F15 0915 05F15 0915 1315
Key ad99f64474756f3d3a54c60ef760f876
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 Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 23
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2315 13F15 2315 21F15 2315 0415
Key ad99f64474756f3d3a54c60ef760f876
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3115 04F15 3115 05F15 3115 1315
Key ad99f64474756f3d3a54c60ef760f876

Authenticated Data

02 0001110010 1375 526770 120 bits
N/A 1375 526320 440 bits
0001110010 1375 526320 80 bits
03 0001011110 1375 515070 1760 bits
N/A 1375 514740 9840 bits
0001011110 1375 515070 760 bits
04 0000011111 1375 554310 6960 bits
N/A 1375 552840 8800 bits
0000011111 1375 554010 2240 bits
05 0000011111 1375 554310 6360 bits
N/A 1375 553080 3240 bits
0000011111 1375 553110 600 bits
06 0000100001 1375 554310 600 bits
N/A 1375 554280 7600 bits
0000100001 1375 554010 200 bits
07 0001111010 1375 531390 440 bits
N/A 1375 531360 5640 bits
0001111010 1375 531360 400 bits
08 0001101100 1375 523020 480 bits
N/A 1375 523020 2640 bits
0001101100 1375 522990 440 bits
09 0000100001 1375 554310 600 bits
N/A 1375 554280 7320 bits
0000100001 1375 554010 200 bits
10 0000010000 1375 548130 8080 bits
N/A 1375 544140 7320 bits
0000010000 1375 546930 2320 bits
11 0000010101 1375 546960 360 bits
N/A 1375 546960 4320 bits
0000010101 1375 546960 360 bits
12 0000001110 1375 542670 280 bits
N/A 1375 542640 8240 bits
0000001110 1375 542670 280 bits
13 0000100000 1375 554310 2800 bits
N/A 1375 553260 1960 bits
0000100000 1375 554010 400 bits
14 - - -
- - -
- - -
15 0000011001 1375 553050 17760 bits
N/A 1375 511740 14200 bits
0000100000 1375 553680 40 bits
16 0001000100 1375 120690 7440 bits
N/A 1375 117720 6480 bits
0001000100 1375 120690 2040 bits
18 - - -
- - -
- - -
19 0000011011 1375 550770 600 bits
N/A 1375 550680 12240 bits
0000011011 1375 550710 600 bits
21 0000011100 1375 554310 7600 bits
N/A 1375 550860 8120 bits
0000011100 1375 553470 600 bits
23 0000100001 1375 554310 600 bits
N/A 1375 554280 8760 bits
0000100001 1375 554010 200 bits
25 0001110001 1375 525720 80 bits
N/A 1375 525720 80 bits
0001110001 1375 525720 80 bits
26 0001111000 1375 533970 14840 bits
N/A 1375 529800 6160 bits
0001111000 1375 533970 3920 bits
27 0000010001 1375 544710 600 bits
N/A 1375 544680 6640 bits
0000010001 1375 544680 560 bits
29 0000001101 1375 541980 160 bits
N/A 1375 541980 12400 bits
0000001101 1375 541980 160 bits
30 0000000100 1375 536940 520 bits
N/A 1375 536760 4280 bits
0000000100 1375 536940 280 bits
31 0000100001 1375 554310 600 bits
N/A 1375 554280 3440 bits
0000100001 1375 554010 200 bits
33 0000000001 1375 535260 760 bits
N/A 1375 535260 9840 bits
0000000010 1375 535860 80 bits
34 0000011111 1375 552900 320 bits
N/A 1375 552900 5280 bits
0000011111 1375 552900 320 bits
36 0000010111 1375 551190 8320 bits
N/A 1375 547980 3560 bits
0000010111 1375 551070 1520 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