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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]

1403 72300

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 12
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 7
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 1107 10F15 1115 28F15 - 0615
Key da4cd68ebf9b37da82560271c1ac0cc2
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1208 10F15 1215 28F15 1208 0615
Key da4cd68ebf9b37da82560271c1ac0cc2
SVID 18
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1800 07F15 1800 29F15 1800 1515
Key da4cd68ebf9b37da82560271c1ac0cc2
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 2108 29F15 2115 23F15 2108 0715
Key da4cd68ebf9b37da82560271c1ac0cc2
SVID 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2708 29F15 2715 07F15 2708 1915
Key da4cd68ebf9b37da82560271c1ac0cc2
SVID 28
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 3008 36F08 3015 29F15 3008 0715
Key da4cd68ebf9b37da82560271c1ac0cc2
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0001110001 1403 70440 2320 bits
N/A 1403 68760 5280 bits
0001110001 1403 68790 440 bits
03 0001011110 1403 57480 560 bits
N/A 1403 57420 1920 bits
0001011110 1403 57450 520 bits
04 0000110011 1403 31980 1040 bits
N/A 1403 31080 2880 bits
0000110011 1403 31650 240 bits
05 0001001111 1403 48150 120 bits
N/A 1403 48060 1000 bits
0001001111 1403 48090 40 bits
06 0000111010 1403 35880 480 bits
N/A 1403 35760 2720 bits
0000111010 1403 35850 440 bits
07 0001110110 1403 72270 2160 bits
N/A 1403 71880 12240 bits
0001110110 1403 71970 640 bits
08 0001101111 1403 67560 320 bits
N/A 1403 67500 6920 bits
0001101111 1403 67530 320 bits
09 0001000001 1403 39780 160 bits
N/A 1403 39720 4080 bits
0001000001 1403 39750 120 bits
10 0001110110 1403 72270 1240 bits
N/A 1403 71520 3760 bits
0001110110 1403 71550 120 bits
11 0001110111 1403 72270 120 bits
N/A 1403 72240 680 bits
0001110100 1403 70290 40 bits
12 0001110111 1403 72270 280 bits
N/A 1403 72240 2640 bits
0001110110 1403 71970 680 bits
13 0001100010 1403 60030 120 bits
N/A 1403 58320 3560 bits
0001100010 1403 59940 120 bits
14 - - -
- - -
- - -
15 0001011001 1403 54330 360 bits
N/A 1403 54300 2520 bits
0001011001 1403 54300 320 bits
16 0001011010 1403 55260 40 bits
N/A 1403 53580 1160 bits
0001011000 1403 53580 160 bits
18 - - -
- - -
- - -
19 0001110100 1403 72270 4840 bits
N/A 1403 70260 3480 bits
0001110100 1403 70290 40 bits
21 0001110111 1403 72270 280 bits
N/A 1403 72240 1080 bits
0001110110 1403 71970 680 bits
23 0001001010 1403 46650 2720 bits
N/A 1403 45240 520 bits
0001001010 1403 46650 1200 bits
25 0001100011 1403 63900 6280 bits
N/A 1403 60000 3200 bits
0001100010 1403 60030 760 bits
26 0001101101 1403 66300 320 bits
N/A 1403 66300 6080 bits
0001101101 1403 66270 280 bits
27 0001110111 1403 72270 280 bits
N/A 1403 72240 4720 bits
0001110110 1403 71970 320 bits
28 0001110001 1403 72270 9120 bits
N/A 1403 68820 280 bits
0001110001 1403 71970 3400 bits
29 0001110001 1403 72270 11000 bits
N/A 1403 68940 7480 bits
0001110001 1403 71970 1720 bits
30 0001110111 1403 72270 280 bits
N/A 1403 72240 4240 bits
0001110110 1403 71970 680 bits
31 0000000110 1403 8370 8440 bits
N/A 1403 4560 2600 bits
0000000110 1403 4590 440 bits
32 - - -
- - -
- - -
33 0001101110 1403 70230 4720 bits
N/A 1403 66600 5360 bits
0001101101 1403 66630 760 bits
34 0001000110 1403 46770 3640 bits
N/A 1403 46800 8040 bits
0001000110 1403 46770 320 bits
36 0001110111 1403 72270 240 bits
N/A 1403 35520 7280 bits
0000111010 1403 35550 120 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