DK3WN SatBlog

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NEGAI*


05:53 UTC packet transmission captured by Noguchi san JA5BLZ, thanks Tetsu san for audio file

[67 Bytes KISS Frame (without CRC)] ctrl: 3   PID: F0 {UI}   48 Payload Bytes
from JQ1ZEX to JQ1ZSU: 
 1 > 01 20 11 40 10 71 00 0C 20 81 78 F5 FF 0E B9 B4 1A 2B 38 08 
21 > 4E 80 A9 DA FF 30 08 6C 04 0A AB A3 B1 A3 A0 A6 A6 A6 A6 A6 
41 > A6 A6 00 00 00 00 A6 A0 

[67 Bytes KISS Frame (without CRC)] ctrl: 3   PID: F0 {UI}   48 Payload Bytes
from JQ1ZEX to JQ1ZSU: 
 1 > 01 20 11 42 10 71 00 0C 20 81 78 E6 E6 0B B9 B4 1A FF FF 05 
21 > 4E 80 AA D9 FF 30 09 6D 04 09 AB A4 B1 A3 A0 A7 A7 A7 A7 A7 
41 > A7 A7 00 00 00 00 A7 A0 


NEGAI* via skype


14:55 UTC
soka 0b76980071900d20810bdc0007b6dc
soka 0b76e00071000d20800bdb0007b6bd
soka 0b77270071000d20810bda0007b7be

Today I made an exciting experiment together with my friend Tetsu san JA0CAW.
Since we can not hear NEGAI* in Central Europe we established a live link between our stations.
Tetsu gave me access to his PC via remote control (VNC) and I could control his transceiver.
We established a second connection via skype for audio.

sound CW beacon of NEGAI via skype

The audio quality was excellent and I could hear NEGAI at a 10 deg pass over the Pacific Ocean. Thank you Tetsu san.

PS: I remember on similiar experiments with skype and Teamviewer software together with Henk, PA3GUO for
a live presentation of COMPASS-1 at the AMSAT-DL symposium in Bochum last year.


Negai☆


20:51 UTC  437.305 MHz
soka0533530071000d208182e1ff19f7ce
soka0533990071000d208176dfa206c7cc
soka0533df0071000d20817ee3ff1067cd
soka0534230071000d20817ce3ff0fc7cb
soka0534680071000d20807fe4ff0fc7cc


Negai☆


22:20 UTC 437.305 MHz CW beacon

soka03f70300071000d20818ffff13c6cd
soka03f74a0071000d20817be4ff0fc7cb
soka03f78d0071000d208181e4ef0ec7cb


Negai☆, Waseda-Sat2


New-CubeSat Negai☆ 20:33 UTC 437.305 MHz CW-Beacon  Thanks Kuge san,JE1CVL and Thanks Image Kasei san,JA1GDE

SOKA013AEB0071000D208182DAFF12C8D1
SOKA013B300071000D208183FFFF15C9D1
SOKA013B770071000D208179DAED0DC9D0
SOKA013BBD0071000D208173DAC208CAFF

sound CW beacon

New-CubeSat  Waseda-Sat2 Nothing Heard

Robert, NH7WN: Shortly thereafter I heard CW at a speed similar to COMPASS on frequency 437.305 MHz. For a short time I tracked
Celestrak’s OBJECT A2010:020A at 17 deg. maximum elevation AOS from the west tracking slightly to the SE. The signal was
fading severely and I was unable to make any reasonable copy. Characters I did hear appeared to be:

1… (numbers) DDEFE0 EG CO/710

Very difficult with D700 (FM/Fades and 5 KHz steps in Doppler!!!): BUT something was there where Celestrak said OBJ. A would be !!
No packets heard: Only CW. Time 2051Z; azimuth 224 deg at 17 degs elevation;


H-IIA successfully launched



21:58 UTC The launch vehicle, a H-IIA rocket, took off from the Tanegashima space centre in southern Japan on schedule at 21:58 UTC, three days after its original launch was postponed by bad weather.

After the first-time combustion of the second stage engine was cut off, three small Cubesats (secondary payload) on the J-POD (WASEDA-SAT2, KSAT, and Negai*”) were separated at 22:13 UTC. After the second cutoff of the second stage engine, the AKATSUKI was injected into the Venus transfer orbit.

The H-IIA continued its coast flight and separated IKAROS and UNITEC-1 from the Payload Attach Fitting (PAF900M, the PAF primarily for the main payload, AKATSUKI.)


Negai*”


Negai*” sound sample

http://ja0caw-je0mzi.mo-blog.jp/syumi/files/Negai-0317-2.wav
437.305 MHz FM, 1k2 AFSK AX.25, 0.8W
I decoded it by MixW.


NEGAI*


Four CubeSats in Japan are planned to launch at 20 May 2010 together with PLANET-C which belongs to JAXA by H-IIA rocket. One of them is NEGAI. Her mission is earth imaging and image compression.
We got two test files from the NEGAI Cubesat-Team. Thanks to Ueda san and Tetsu san.

437.305 MHz CW 0.1 W
sound CW signal
SOKA00040F04720025257F000000007F74

437.305 MHz FM, 1k2 AFSK AX.25, 0.8W
sound AFSK signal

from JQ1ZEX to JQ1ZSU: 
   1 > 01 00 02 1B 01 71 00 04 20 81 27 BC 00 08 7E 7E 1E 1B 1C 00 
  21 > 4D 81 AA DA FE 33 08 69 04 0A 81 7F 7F 7E 7F 7F 7F 7F 7F 7F 
  41 > 7F 7F 00 00 00 00 7F 70 

from JQ1ZEX to JQ1ZSU: 
   1 > 01 00 02 1C 01 71 00 04 20 81 27 BC 00 08 7E 7E 1F 1C 1C 00 
  21 > 4E 81 A9 DA FF 33 08 69 04 0A 81 7F 7E 7F 7F 7F 7F 7F 7F 7F 
  41 > 7F 7F 00 00 00 00 7F 70 

from JQ1ZEX to JQ1ZSU: 
   1 > 01 00 02 1D 01 71 00 04 20 81 27 BC 00 09 7E 7E 1D 1A 1B 00 
  21 > 4F 81 A9 DA FF 33 08 69 04 09 81 7F 7F 7F 7F 7E 7E 7E 7E 7E 
  41 > 7E 7E 00 00 00 00 7E 70 

More information on the following websites:
http://kuro.t.soka.ac.jp/main.html
http://www.jaxa.jp/countdown/f17/overview/sub_payload_e.html