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]

1412 547500

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 10
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 5
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 7
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0708 02F15 0715 29F08 0708 1215
Key 0665e248b05f3551f8e9d2c250bfaa03
SVID 10
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1008 12F15 1015 11F15 1008 2515
Key 0665e248b05f3551f8e9d2c250bfaa03
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
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 26
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2608 29F08 2615 19F15 2608 1215
Key 0665e248b05f3551f8e9d2c250bfaa03
SVID 28
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 2808 19F15 2815 31F15 2808 0615
Key 0665e248b05f3551f8e9d2c250bfaa03
SVID 29
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 3308 29F08 3315 19F15 3308 1215
Key 0665e248b05f3551f8e9d2c250bfaa03

Authenticated Data

02 0001011110 1412 516090 3040 bits
N/A 1412 514560 15960 bits
0001011110 1412 514590 440 bits
03 0000000111 1412 538290 40 bits
N/A 1412 538260 6000 bits
0000000111 1412 538290 40 bits
04 0001100101 1412 520710 6760 bits
N/A 1412 518580 3640 bits
0001100101 1412 520710 1600 bits
05 0001111001 1412 530880 520 bits
N/A 1412 530880 6560 bits
0001111001 1412 530910 600 bits
06 0001101010 1412 525510 15720 bits
N/A 1412 520860 1200 bits
0001101010 1412 525510 4240 bits
07 0000010110 1412 547470 280 bits
N/A 1412 547440 10120 bits
0000010101 1412 547170 680 bits
08 0000001110 1412 546750 15040 bits
N/A 1412 542760 7760 bits
0000001110 1412 546690 3000 bits
09 0001101110 1412 524100 240 bits
N/A 1412 524100 3360 bits
0001101110 1412 524070 240 bits
10 0000010110 1412 547470 280 bits
N/A 1412 547440 360 bits
0000010101 1412 547170 320 bits
11 0001010101 1412 512610 6200 bits
N/A 1412 509100 5600 bits
0001010101 1412 511650 1560 bits
12 0000010101 1412 547470 2840 bits
N/A 1412 546780 1080 bits
0000010101 1412 547170 520 bits
13 0000010010 1412 545100 280 bits
N/A 1412 545100 9760 bits
0000010010 1412 545100 280 bits
14 - - -
- - -
- - -
15 0001111010 1412 535290 14320 bits
N/A 1412 531300 6200 bits
0001111010 1412 534750 2600 bits
16 0000010101 1412 546960 40 bits
N/A 1412 546960 3600 bits
0000010101 1412 546960 40 bits
18 - - -
- - -
- - -
19 0000010101 1412 547470 2880 bits
N/A 1412 546600 2440 bits
0000010101 1412 547170 240 bits
21 0000000100 1412 536520 80 bits
N/A 1412 536520 5720 bits
0000000100 1412 536580 80 bits
23 0000001011 1412 541170 640 bits
N/A 1412 541140 5600 bits
0000001011 1412 541170 680 bits
25 0000010101 1412 547470 1480 bits
N/A 1412 546720 2520 bits
0000010101 1412 546750 120 bits
26 0000010110 1412 547470 280 bits
N/A 1412 547440 13960 bits
0000010101 1412 547170 680 bits
27 0001111000 1412 530460 600 bits
N/A 1412 530220 3400 bits
0001111000 1412 530250 520 bits
28 0000010110 1412 547470 240 bits
N/A 1412 547440 160 bits
0001100011 1412 518610 1240 bits
29 0000010110 1412 547470 880 bits
N/A 1412 547260 3520 bits
0000010101 1412 547170 560 bits
30 0001101101 1412 523530 280 bits
N/A 1412 523440 2560 bits
0001101101 1412 523440 240 bits
31 0000010001 1412 544350 120 bits
N/A 1412 544320 5040 bits
0000010001 1412 544350 80 bits
32 0000001000 1412 543210 12320 bits
N/A 1412 539280 4320 bits
0000001000 1412 543210 3120 bits
33 0000010110 1412 547470 280 bits
N/A 1412 547440 8160 bits
0000010101 1412 547170 880 bits
34 0001110000 1412 525330 320 bits
N/A 1412 525240 2880 bits
0001110000 1412 525300 320 bits
36 0001100010 1412 516780 120 bits
N/A 1412 516780 8040 bits
0001100010 1412 516750 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 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