ESTCube-1 has started downloading a new image that it has taken with the onboard camera. I’m going to try once again to decode the image data. One of the problems I face, is a strong local generated carrier on 437.495 that makes it impossible for me to decode all the data during a pass.

There is a new decoder version that is also able to generate the image. Take a look at the software page from Mike DK3WN. (estcube_fm.zip)

Information about my latest pass:

Date and Time: 29-07-2013 11:35 - 11:47 UTC
Object       : ESTCUBE-1 - 13021C
Max elevation: 46 degree
Azimuth      : 008 - 213 degree
Polarization : LHCP Because of the carrier at 437.495
Signal       : max 25 dB above noise
Frequency    : 437.505000 MHz FM +/- Doppler
Status       : Active
Remark       : Interference from a local generated carrier

Kiss file generated between 08:24 – 11:47 UTC: ESTCube-1_29072013_0752.kss

I had a couple of nice ESTCube-1 passes this day and I gave it a try.

I used my FUNcube Dongle Pro+, SDRSharp, DDE Plugin and SatPC32. To decode the signals I used my sound card modem setup. This gave me a total of 277 frames that I tried to decode with the ESTCube-1 FM decode software from DK3WN.

Below is a raw TLM kiss frame:

2013-07-10 11:35:53.570 UTC: [236 Bytes KISS Frame (without CRC)]
ctrl: 3   PID: F0 {UI}   217 Payload Bytes
from ES5E-11 to ES5EC-1: 
   1 > 05 06 00 D5 02 42 51 D1 04 E8 18 09 00 C8 00 00 00 95 02 8E 
  21 > 03 D3 02 6B 03 22 02 99 01 6F 01 66 01 40 01 17 01 13 01 FC 
  41 > 00 2D 01 6B 01 AE 01 0A 02 90 01 67 01 55 01 54 01 C4 01 08 
  61 > 02 9D 01 7E 01 54 01 2D 01 4F 01 B2 01 AD 01 C9 01 99 01 A5 
  81 > 01 7C 01 55 01 31 01 44 01 36 01 15 01 53 01 6E 01 37 01 34 
 101 > 01 79 01 96 01 61 01 58 01 57 01 8A 01 6C 01 CB 01 52 01 A2 
 121 > 01 85 01 94 01 5B 01 79 01 5F 01 60 01 5C 01 3B 01 22 01 57 
 141 > 01 14 01 20 01 0F 01 18 01 0D 01 0E 01 46 01 EA 01 50 01 2C 
 161 > 01 54 01 B0 01 A3 01 9C 01 4C 01 96 01 A9 01 6D 01 2F 01 62 
 181 > 01 4E 01 36 01 50 01 AB 01 9A 01 89 01 42 01 61 01 42 01 3F 
 201 > 01 49 01 9E 01 5F 01 B0 01 A2 01 C7 01 8E 01 99 01 
...Õ.BQÑ.è...È...•.Ž.Ó.k.".™.o.f.@.....ü.-.k.®....g.U.T.Ä....~.T.-.O.².­.É.™.¥.|.U.1.D.6...S.n.7.4.y.–.a.X.W.Š.l.Ë.R.¢.….”.[.y._.`.\.;.".W... .........F.ê.P.,.T.°.£.œ.L.–.©.m./.b.N.6.P.«.š.‰.B.a.B.?.I.ž._.°.¢.Ç.Ž.™.

Decoded TLM data:

When I used this software it also created a image.raw file but I am unable to convert it into an image. The kiss file can be downloaded at the following location so if somebody else can give it a try, be my guest.

07-05-2013 09:15 UTC

ESTCube-1 working in CW on 437.251500 MHz

With the use of following TLE:

ESTCube-1
1 99999U 99999    13127.17171296  .00000000  00000-0  10000-3 0 00005
2 99999 098.1390 205.7730 0134000 220.5400 211.2631 14.71982716000009

First Telemetry decoded by DK3WN:

09:12 UTC ES5E/S T WMTC5ET ZFHB6E ATTT DNTTTT TTFSFS 5A5NTT TTTZ TZTT KN

Congratulation for the ESTCube-1 team.