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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]

1407 516300

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 3
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 5
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0508 16F15 0515 03F15 0508 3115
Key ba83c2dbf2884b94e42f5b9d5b2a7571
SVID 6
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0608 10F15 0615 12F15 0608 1115
Key ba83c2dbf2884b94e42f5b9d5b2a7571
SVID 9
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 0908 16F15 0915 10F15 0908 1215
Key ba83c2dbf2884b94e42f5b9d5b2a7571
SVID 12
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA
SVID 13
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1308 32F15 1315 03F15 1308 2608
Key ba83c2dbf2884b94e42f5b9d5b2a7571
SVID 14
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags 1400 31F15 1400 16F15 1400 3315
Key ba83c2dbf2884b94e42f5b9d5b2a7571
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 2308 26F08 2315 33F15 2308 3115
Key ba83c2dbf2884b94e42f5b9d5b2a7571
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 33
ADKD 0/12 1 2 3 4 5
ADKD 4 6 10
Tags Not transmitting OSNMA
Key Not transmitting OSNMA

Authenticated Data

02 0000110001 1407 487350 120 bits
N/A 1407 487320 4960 bits
0000110001 1407 487350 120 bits
03 0001100000 1407 516270 2120 bits
N/A 1407 515700 600 bits
0001100000 1407 515730 360 bits
04 0001011011 1407 515610 6560 bits
N/A 1407 512640 6720 bits
0001011011 1407 515610 320 bits
05 0001100001 1407 516270 280 bits
N/A 1407 516240 4680 bits
0001100000 1407 515970 680 bits
06 0001100001 1407 516270 280 bits
N/A 1407 516240 7160 bits
0001011011 1407 515970 640 bits
07 0000111011 1407 493440 240 bits
N/A 1407 493380 5560 bits
0000111011 1407 493410 200 bits
08 0000101000 1407 483570 5600 bits
N/A 1407 482040 1520 bits
0000101000 1407 483210 1040 bits
09 0001100001 1407 516270 280 bits
N/A 1407 516240 7800 bits
0001100000 1407 515970 240 bits
10 0000111100 1407 497130 3360 bits
N/A 1407 494040 4920 bits
0000111100 1407 494130 320 bits
11 0001000001 1407 500670 5640 bits
N/A 1407 497340 4880 bits
0001000001 1407 497370 680 bits
12 0001100000 1407 516270 1080 bits
N/A 1407 494100 5680 bits
0000111100 1407 494130 360 bits
13 0001100001 1407 516270 280 bits
N/A 1407 516240 8840 bits
0001100000 1407 515970 680 bits
14 - - -
- - -
- - -
15 0001010011 1407 511770 13400 bits
N/A 1407 507720 2240 bits
0001010011 1407 511530 2640 bits
16 0001100000 1407 516270 3120 bits
N/A 1407 515580 4000 bits
0001100000 1407 515970 440 bits
18 - - -
- - -
- - -
19 0001010101 1407 512910 13360 bits
N/A 1407 508980 10720 bits
0001010101 1407 512550 1840 bits
21 0001011100 1407 513630 480 bits
N/A 1407 513600 12600 bits
0001011100 1407 513630 440 bits
23 0001100001 1407 516270 280 bits
N/A 1407 516240 5480 bits
0001100000 1407 515970 640 bits
25 0000100010 1407 482010 9880 bits
N/A 1407 478200 760 bits
0000100010 1407 482010 1800 bits
26 0001100001 1407 516270 360 bits
N/A 1407 516120 11560 bits
0001100000 1407 515970 680 bits
27 0001001100 1407 503610 200 bits
N/A 1407 503520 8600 bits
0001001100 1407 503580 160 bits
28 0001011010 1407 513690 6400 bits
N/A 1407 511860 7800 bits
0001011010 1407 513090 840 bits
29 0001001001 1407 502200 720 bits
N/A 1407 502140 9360 bits
0001001001 1407 502170 680 bits
30 0000111010 1407 496950 10920 bits
N/A 1407 492900 5320 bits
0000111010 1407 496950 1280 bits
31 0001100000 1407 516270 2880 bits
N/A 1407 515760 4640 bits
0001100000 1407 515970 600 bits
32 0000100010 1407 482310 11040 bits
N/A 1407 478260 800 bits
0000100010 1407 482070 1800 bits
33 0001011100 1407 516270 12480 bits
N/A 1407 513060 7600 bits
0001011100 1407 515970 3360 bits
34 0001001001 1407 505050 9800 bits
N/A 1407 501660 520 bits
0001001001 1407 504210 720 bits
36 0001000001 1407 501210 9760 bits
N/A 1407 497340 3760 bits
0001000001 1407 500970 2320 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