Development of CubeSat

Paper number

IAC-05-B5.6.A.05

Author

Mr. Nobuaki Kinoshita, Nihon University, Japan

Coauthor

Mr. Kazumasa Sase, Nihon University, Japan

Coauthor

Mr. Satoshi Okino, Nihon University, Japan

Coauthor

Mr. Shigeki Uchiyama, Nihon University, Japan

Coauthor

Mr. Sotaro Hashiguchi, Nihon University, Japan

Coauthor

Mr. Yosuke Onda, Nihon University, Japan

Coauthor

Mr. Hisayuki Nakatsuji, Nihon University, Japan

Coauthor

Mr. Masahiro Yanagisawa, Nihon University, Japan

Coauthor

Miss. Yuka iwai, Nihon University, Japan

Coauthor

Mr. Kanako Daigo, Nihon University, Japan

Coauthor

Prof. Yasuyuki Miyazaki, Nihon University, Japan

Year

2005

Abstract

We, Nihon University student team, have participated in "CubeSat" project, a nano-satellite development project from 2001. The purpose of the project is the education of space engineering.  The satellite, called CubeSat, has 10cm cubic shape, and 1kg weight. We named it SEEDS (Space Engineering EDucation Satellite). SEEDS is an amateur radio frequency satellite. SEEDS are going to be launched in this May. This paper reports the detail about the flight model of SEEDS and the ground station operating system as well as the latest status of the project.

The main missions of SEEDS are as followings.

1.Minimum Mission
We will get the house keeping data, e.g. the battery voltage, temperature distribution in SEEDS by receiving the CW signal from SEEDS.

2.Middle Mission
We will send the command to SEEDS by FM packet, and get the several sensor data, e.g. geomagnetic intensity and direction, angular velocity as well as the house keeping data by receiving the FM packet (1200bps, FSK, AX. 25 protocol) from SEEDS. We will analyze the attitude of the satellite with these data.

3.Advanced Mission
We will have SEEDS play the digi-talker device, and get the voice data from SEEDS. The voice data is already stored in SEEDS. The amateur radio people can also enjoy the voice data just with the portable FM receiver.

To achieve these missions, SEEDS has solar battery cells, Li-ion batteries, two monopole antennas, the antenna development mechanism, seventeen temperature sensors, a three-axes geomagnetic sensor, three one-axis gyro sensors, solar battery cell galvanometer, a CW/FM transmitter, a FM receiver, and a digi-talker.
We has built a ground station system to operate SEEDS. The station consists of the amateur radio frequency transmitter and receiver, cross-Yagi antennas, and PCs to control these hardware and handle the uplink command and the downlink data.
We has completed the various tests of SEEDS, and are under the final test of the ground station software such as the attitude analysis code, the database of the command and the data.
In the presentation, we will report the latest status of the project, and the results of the downlink data analysis if we will succeed the launch at this spring.

Abstract document

IAC-05-B5.6.A.05.pdf

Manuscript document

IAC-05-B5.6.A.05.pdf (🔒 authorized access only).

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