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Also written TJ3sat


Designation 39385 / 13064F
Launch date 20 Nov 2013
Country of origin United States
Mission Technology
Perigee/Apogee 495 km
Inclination 40.5°
Period 94.4 min
Launch vehicle Minotaur #15

First satellite built by a high school.

Developed, built and tested by students from the Thomas Jefferson High School for Science and Technology in Alexandria, Virginia. The program started in December 2006 and involved 50 students.

Volunteers from Orbital helped the students and Orbital provided technical assistance.

The payload is a phonetic voice synthesiser that converts strings of text to voice. Once converted, the voice is transmitted back to Earth.

Downlink: 437.320 MHz
Uplink: 145.98 MHz

End of life

Decay 17 Sep 2015

External resources


sat-index articles

n2yo.com tracking

Technical data


Prime contractor  
Platform 1U cubesat
Mass at launch  
Dry mass 0.89 kg
Dimension 10x10x11 cm
Solar array  
DC power 3 W
Design lifetime 6 months

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