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Re: CubeSats of Japan



(1)CubeSats of Japan

Two CubeSats XI-IV and CUTE-I were launched 30 Jun 2003,
14:15:26 UTC+2, by Japanese Universities,

'XI-IV'  : Tokyo University
'CUTE-I' : Tokyo of Institute of Technology University

Sat.     Uplink   Downlink   Beacon     Mode
XI-IV       .        .       436.8475   1200bd CW
XI-IV       .        .       437.490    1200bd FM Packet AX.25
CUTE-I      .        .       436.8375   1200bd CW
CUTE-I      .        .       437.470    1200bd FM Packet AX.25(or SRLL)

This SRLL is the protocol only using Tokyo of Institute of Technology
University.


(2)Correct Keps !

2003031H (CANX-1 in NORAD, but CUTE-I !)
1 27847U 03031H   03183.97426148  .00031980  00000-0  14985-1 0    36
2 27847  98.7106 190.9135 0017215 330.6038  29.4186 14.19943444   270
2003031J (CUBESAT XI-IV in NORAD, yes XI-IV !)
1 27848U 03031J   03206.52237362  .00000130  00000-0  81891-4 0    72
2 27848  98.7203 213.0755 0008917 230.9235 123.5542 14.19921647  3528


(3)Incorrect Keps ?

2003031D (MOST in NORAD, but XI-IV ?)
1 27843U 03031D   03190.03434298 -.00000421  00000-0 -17757-3 0    98
2 27843  98.7207 196.8269 0009551 285.8774  74.1332 14.19914869  1183
2003031E (CUTE-I in NORAD, but CUTE-I ?)
1 27844U 03031E   03199.96851457  .00000504  00000-0  25745-3 0   186
2 27844  98.7233 206.6367 0008642 248.7983 111.2270 14.20045847  2595


(4)Home Page (Japanese Language)

XI-IV HP, and CW, FM Packet telemetry format, and Image decoder.
http://www.space.t.u-tokyo.ac.jp/cubesat/mission/operation
http://www.space.t.u-tokyo.ac.jp/nlab_gs/satelliteinfo_ja.html
http://www.space.t.u-tokyo.ac.jp/nlab_gs/xi-iv_operation/index_ja.html
http://www.space.t.u-tokyo.ac.jp/nlab_gs/xi-iv_operation/
                                                  applications_ja.html
http://www.space.t.u-tokyo.ac.jp/cubesat2/tunaterm/index.html
http://www.vector.co.jp/soft/win95/net/se274639.html


CUTE-I HP, and CW, FM Packet telemetry format.
http://lss.mes.titech.ac.jp/ssp/cubesat/
http://gsas.mes.titech.ac.jp/


(5)Information

XI-IV works for CW, FM Packet telemetry, and Image.
When this pass within 10min, only CW mode over Japan.
When this pass over 10min, CW mode 3min after AOS and 3min befor LOS,
and FM Packet always between 3min after AOS and 3min befor LOS.

CUTE-I works for CW, FM Packet telemetry.
AX.25 or SRLL protocol is 1200bps, interval of 2sec, 15min over Japan.
This SRLL is the protocol only in Tokyo of Institute of Technology
University.


Please send any informations to the following URL for these CubeSats .

jamsat-bb@jamsat.or.jp

---------------------------------------------
Name: Mineo Wakita / JE9PEL, JAMSAT member
Mail: ei7m-wkt@asahi-net.or.jp
URL : http://www.ne.jp/asahi/hamradio/je9pel/
QTH : Yokohama Japan, GL:PM95TJ
Date: Jul 30, 2003
---------------------------------------------
----
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
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