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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]

1397 287580

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 13
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 4
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 0704 26F15 0715 08F04 0704 2915
Key 6bf0593c49c11e97f9b5a88195037e35
SVID 8
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 1004 12F15 1015 31F15 1004 1604
Key 6bf0593c49c11e97f9b5a88195037e35
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1104 09F15 1115 12F15 1104 0415
Key 6bf0593c49c11e97f9b5a88195037e35
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 33F15 1400 31F15 1400 1215
Key 6bf0593c49c11e97f9b5a88195037e35
SVID 16
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 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 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 31
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 32
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 Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000100100 1397 253860 3600 bits
N/A 1397 251220 7360 bits
0000100100 1397 251250 520 bits
03 0001011111 1397 286890 400 bits
N/A 1397 286200 1280 bits
0001011110 1397 286230 760 bits
04 0001001111 1397 280530 10400 bits
N/A 1397 277020 6320 bits
0001001111 1397 279630 2200 bits
05 0001011000 1397 285510 6160 bits
N/A 1397 282360 4120 bits
0001011000 1397 284430 1720 bits
06 0001010011 1397 279660 800 bits
N/A 1397 279600 4600 bits
0001010011 1397 279630 760 bits
07 0001100001 1397 287550 40 bits
N/A 1397 258900 16120 bits
0000110001 1397 258930 320 bits
08 0001100001 1397 287550 40 bits
N/A 1397 250020 12360 bits
0001011011 1397 284310 120 bits
09 0001010111 1397 281610 200 bits
N/A 1397 281580 5960 bits
0001010111 1397 281610 200 bits
10 0001100001 1397 287550 120 bits
N/A 1397 287520 1120 bits
0001100000 1397 287250 240 bits
11 0001100001 1397 287550 120 bits
N/A 1397 287520 240 bits
0001100000 1397 287250 80 bits
12 0001100000 1397 287550 2520 bits
N/A 1397 286860 4120 bits
0001100000 1397 287250 400 bits
13 0001010101 1397 283230 4000 bits
N/A 1397 280380 9560 bits
0001010101 1397 280410 200 bits
14 - - -
- - -
- - -
15 0001001010 1397 277890 8680 bits
N/A 1397 273840 5880 bits
0001001010 1397 275010 840 bits
16 0001100001 1397 287550 120 bits
N/A 1397 287520 5040 bits
0001100000 1397 287250 520 bits
18 - - -
- - -
- - -
19 0001000011 1397 269940 560 bits
N/A 1397 269880 4920 bits
0001000100 1397 270510 40 bits
21 0001010100 1397 280080 560 bits
N/A 1397 280080 8000 bits
0001010100 1397 280110 600 bits
23 0001011101 1397 286890 3520 bits
N/A 1397 285360 10640 bits
0001011101 1397 285390 440 bits
25 0001011011 1397 287520 4440 bits
N/A 1397 242340 4120 bits
0001011011 1397 286710 1920 bits
26 0001011011 1397 287550 5040 bits
N/A 1397 284280 8160 bits
0001011011 1397 284310 600 bits
27 0001000011 1397 271350 6920 bits
N/A 1397 269520 2360 bits
0001000011 1397 271350 1600 bits
28 0001000111 1397 276150 13560 bits
N/A 1397 272220 2440 bits
0001000111 1397 276150 3280 bits
29 0000111101 1397 266460 360 bits
N/A 1397 266460 920 bits
0000111101 1397 266460 360 bits
30 0000110100 1397 263190 6320 bits
N/A 1397 260700 560 bits
0000110100 1397 263190 2480 bits
31 0001100000 1397 287550 2320 bits
N/A 1397 286800 4680 bits
0001011111 1397 286830 760 bits
32 - - -
- - -
- - -
33 0001011011 1397 287550 12720 bits
N/A 1397 284340 3560 bits
0001011011 1397 287250 3600 bits
34 0000111111 1397 271170 6000 bits
N/A 1397 262560 1160 bits
0000110111 1397 264690 1880 bits
36 0000101110 1397 260880 8840 bits
N/A 1397 256200 200 bits
0000101110 1397 257430 200 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