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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]

1416 524940

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 14
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 7
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 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 0915 06F15 0915 04F15 0915 1215
Key 17cfd14900511717734eaaa6150b7ca1
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1015 12F15 1015 06F15 1015 0415
Key 17cfd14900511717734eaaa6150b7ca1
SVID 11
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1115 06F15 1115 04F15 1115 1215
Key 17cfd14900511717734eaaa6150b7ca1
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 30F15 1400 27F15 1400 1515
Key 17cfd14900511717734eaaa6150b7ca1
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 27
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2815 04F15 2815 19F15 2815 0615
Key 17cfd14900511717734eaaa6150b7ca1
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 3415 30F15 3415 02F15 3415 1515
Key 17cfd14900511717734eaaa6150b7ca1
SVID 36
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 3615 06F15 3615 04F15 3615 3015
Key 17cfd14900511717734eaaa6150b7ca1

Authenticated Data

02 0001101101 1416 524910 5160 bits
N/A 1416 523500 2960 bits
0001101101 1416 523650 440 bits
03 0001010101 1416 511470 9320 bits
N/A 1416 508980 6240 bits
0001010101 1416 511230 840 bits
04 0001101101 1416 524910 8280 bits
N/A 1416 523560 1840 bits
0001101101 1416 524610 2120 bits
05 0001001111 1416 505800 720 bits
N/A 1416 505800 6880 bits
0001001111 1416 505800 680 bits
06 0001101101 1416 524910 7760 bits
N/A 1416 523260 2480 bits
0001101101 1416 524610 1080 bits
07 0001011100 1416 513360 400 bits
N/A 1416 513300 3520 bits
0001011100 1416 513330 360 bits
08 0001011001 1416 511620 480 bits
N/A 1416 511560 3400 bits
0001011001 1416 511590 440 bits
09 0001101111 1416 524910 600 bits
N/A 1416 524880 1040 bits
0001101111 1416 524610 200 bits
10 0001101111 1416 524910 600 bits
N/A 1416 524880 1240 bits
0001101111 1416 524610 200 bits
11 0001101111 1416 524910 600 bits
N/A 1416 524880 1240 bits
0001101111 1416 524610 200 bits
12 0001101000 1416 520800 680 bits
N/A 1416 520740 760 bits
0001101000 1416 520860 680 bits
13 0000111111 1416 499290 10800 bits
N/A 1416 496140 5560 bits
0000111111 1416 499290 2720 bits
14 - - -
- - -
- - -
15 0000110100 1416 489270 280 bits
N/A 1416 489300 1320 bits
0000110100 1416 489300 320 bits
16 0001011100 1416 519690 14520 bits
N/A 1416 513240 5000 bits
0001011100 1416 519690 1920 bits
18 - - -
- - -
- - -
19 0001101100 1416 524910 4600 bits
N/A 1416 523020 2240 bits
0001101100 1416 523890 840 bits
21 0000110110 1416 490290 40 bits
N/A 1416 490320 3400 bits
0000110110 1416 490320 80 bits
23 0001000110 1416 500400 680 bits
N/A 1416 500400 8040 bits
0001000110 1416 500400 640 bits
25 0001101111 1416 524850 520 bits
N/A 1416 524820 3480 bits
0001101111 1416 524610 200 bits
26 0001001100 1416 503670 280 bits
N/A 1416 503640 7440 bits
0001001100 1416 503640 240 bits
27 0001101110 1416 524910 2080 bits
N/A 1416 523860 280 bits
0001101110 1416 523890 40 bits
28 0001101111 1416 524910 600 bits
N/A 1416 524880 1080 bits
0001101111 1416 524610 200 bits
29 0001011011 1416 519630 10520 bits
N/A 1416 512520 2280 bits
0001011011 1416 519630 160 bits
30 0001101010 1416 524910 12200 bits
N/A 1416 521640 1320 bits
0001101010 1416 524610 4480 bits
31 0001010010 1416 510150 3440 bits
N/A 1416 507060 8240 bits
0001010010 1416 507090 40 bits
32 0001010111 1416 510420 480 bits
N/A 1416 510420 5040 bits
0001010111 1416 510420 480 bits
33 0001010101 1416 512730 8760 bits
N/A 1416 509220 7400 bits
0001010101 1416 512550 2000 bits
34 0001101111 1416 524910 600 bits
N/A 1416 524880 3720 bits
0001101111 1416 524610 200 bits
36 0001101111 1416 524910 600 bits
N/A 1416 524880 1240 bits
0001101111 1416 524610 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 4 ADKD types are: ADKD0, ADKD2, 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 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 or may not authenticate their own navigation message (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