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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]

1373 274740

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 14
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 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
SVID 4
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 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 1015 04F15 1015 19F15 1015 0615
Key a58cd540fe8ffaf0a7555164edb830c6
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1115 04F15 1115 19F15 1115 0615
Key a58cd540fe8ffaf0a7555164edb830c6
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1215 04F15 1215 19F15 1215 0615
Key a58cd540fe8ffaf0a7555164edb830c6
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 25F15 1400 06F15 1400 0915
Key a58cd540fe8ffaf0a7555164edb830c6
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 - - - - 2115 1315
Key a58cd540fe8ffaf0a7555164edb830c6
SVID 27
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 2915 27F15 2915 19F15 2915 0415
Key a58cd540fe8ffaf0a7555164edb830c6
SVID 30
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3315 31F15 3315 04F15 3315 0615
Key a58cd540fe8ffaf0a7555164edb830c6
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3611 02F15 3615 34F15 3611 2515
Key a58cd540fe8ffaf0a7555164edb830c6

Authenticated Data

02 0000111111 1373 271410 10360 bits
N/A 1373 228600 5960 bits
0000111111 1373 270330 2120 bits
03 0000100111 1373 252690 40 bits
N/A 1373 252720 5280 bits
0000100111 1373 252720 80 bits
04 0001001000 1373 274710 9080 bits
N/A 1373 272760 4280 bits
0001001000 1373 274410 1720 bits
05 0000011101 1373 248790 7280 bits
N/A 1373 242580 1440 bits
0000011101 1373 248430 480 bits
06 0001001010 1373 274710 2720 bits
N/A 1373 274080 1760 bits
0001001010 1373 274110 600 bits
07 0001000010 1373 270390 1160 bits
N/A 1373 268980 3480 bits
0001000010 1373 270390 560 bits
08 0000110101 1373 261450 520 bits
N/A 1373 261420 880 bits
0000110101 1373 261450 520 bits
09 0001001010 1373 274710 120 bits
N/A 1373 240600 320 bits
0000010010 1373 240570 560 bits
10 0001001011 1373 274710 600 bits
N/A 1373 274680 4720 bits
0001001011 1373 274410 200 bits
11 0001001011 1373 274710 600 bits
N/A 1373 274680 3080 bits
0001001011 1373 274410 200 bits
12 0001001011 1373 274710 600 bits
N/A 1373 274680 4880 bits
0001001011 1373 274410 200 bits
13 0000110001 1373 259080 560 bits
N/A 1373 259020 13240 bits
0000110001 1373 259050 520 bits
14 - - -
- - -
- - -
15 0000011101 1373 251010 18160 bits
N/A 1373 247140 8600 bits
0000011101 1373 251010 6600 bits
16 0000111111 1373 271500 7640 bits
N/A 1373 267480 2400 bits
0000111111 1373 269310 720 bits
18 - - -
- - -
- - -
19 0001001010 1373 274710 4800 bits
N/A 1373 273720 5280 bits
0001001010 1373 274170 320 bits
21 0000100110 1373 252150 120 bits
N/A 1373 252120 9160 bits
0000100110 1373 252150 120 bits
23 0000110001 1373 259140 640 bits
N/A 1373 259140 5200 bits
0000110001 1373 259140 640 bits
25 0001000001 1373 268860 800 bits
N/A 1373 268800 3120 bits
0001000001 1373 268860 800 bits
26 0001000001 1373 268440 240 bits
N/A 1373 268380 3480 bits
0001000001 1373 268410 200 bits
27 0001001010 1373 274710 1520 bits
N/A 1373 274140 240 bits
0001001010 1373 274410 720 bits
29 0001001011 1373 274710 600 bits
N/A 1373 274680 5160 bits
0001001011 1373 274410 200 bits
30 0001001011 1373 274590 320 bits
N/A 1373 274620 520 bits
0001001011 1373 274410 80 bits
31 0000111000 1373 263370 680 bits
N/A 1373 263280 2120 bits
0000111000 1373 263310 600 bits
33 0001001011 1373 274710 600 bits
N/A 1373 274680 4240 bits
0001001011 1373 274410 200 bits
34 0000001101 1373 241350 8960 bits
N/A 1373 237360 5560 bits
0000001101 1373 241350 1360 bits
36 0001001011 1373 274710 400 bits
N/A 1373 274680 200 bits
0001000110 1373 274410 160 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