Innovative Satellite Technology Demonstration Program

RAPIS-1 (RAPid Innovative payload demonstration Satellite-1) is a satellite within Innovative Satellite Technology Demonstration-1 that demonstrated selected projects as either parts or components. Of the 13 projects, 7 were demonstrated on board RAPIS-1.

• The NanoBridge based Field Programmable Gate Array (NBFPGA) was developed by NEC Corporation
• High data rate X-band Transmitter (HXTX) / X-band Middle Gain Antenna (XMGA) was developed by Keio University
• The Green Propellant Reaction Control System (GPRCS) was developed by Japan Space Systems
• The Space Particle Monitor (SPM) was developed by Japan Space Systems
• The Deep Learning Attitude Sensor (DLAS) was developed by Tokyo Institute of Technology
• The Thin Membrane Solar Array Paddle (TMSAP) was developed by JAXA
• Fireant (Miniature Spaceborne GNSS Receiver) was developed by Chubu University

MicroDragon is a microsatellite proposal submitted by VNSC (Vietnam National Satellite Center).[2]

Rapid International Scientific Experiment Satellite (RISESAT), previously called Hodoyoshi 2, was a microsatellite developed by Tohoku University. It was equipped with scientific instruments that were selected on an international scale.[5] RISESAT was selected for the Innovative Satellite Technology Demonstration Program to demonstrate highly precise attitude control and high resolution multispectral observation technology. RISESAT's high resolution multispectral camera was capable of measuring the growth rate and health of crops from space.[6] RISESAT's remote sensing instrument, High Precision Telescope (HPT) utilizes a liquid crystal tunable filter.[7] RISESAT decayed from orbit on 14 March 2023.[8]

ALE-1, also known as ALEe, was a microsatellite for demonstrating the creation of artificial shooting stars. Built and operated by ALE Co., Ltd., it was the company's first satellite. ALE-1 was equipped with a DOM2500 deorbit mechanism manufactured by Nakashimada Engineering Works, Ltd.[9][10] The DOM2500 was a membrane sail 2.5 m × 2.5 m (8 ft 2 in × 8 ft 2 in) large when deployed, and was used by ALE-1 to lower its altitude to less than 400 km (250 mi), the optimal altitude to conduct its main mission.[11] However, ALE-1 failed to deploy its payload and remains in orbit.[12][13] The DOM2500 reentered the atmosphere on 3 August 2022,[14] and ALE-1 is expected to re-enter the atmosphere in October 2023.[15]

OrigamiSat-1 (COSPAR 2019-003B, SATCAT 43933) was a 3U CubeSat developed by Tokyo Institute of Technology to demonstrate the deployment of large structures from a small, folded state. After being launched to an altitude of 500 km (310 mi), OrigamiSat-1 was designed to descend down to 400 km (250 mi), where it would deploy a 1-m² membrane.[16] The satellite decayed from orbit on 30 April 2022.[17]

Aoba VELOX-IV was a 2U CubeSat equipped with a low-light camera. It was jointly developed by Kyushu Institute of Technology in Japan and Nanyang Technological University (NTU) of Singapore. The pulsed plasma thrusters developed by NTU gave the CubeSat maneuvering capabilities, a necessity for a future lunar mission, as the Moon's irregular gravity field requires orbiters to perform orbit maintenance to extend its mission lifetime.[18] It had a design lifetime of 12 months in low Earth orbit.[19] The satellite decayed from orbit on 24 March 2023.[20]

NEXUS, short for NExt generation X Unique Satellite is a 1U CubeSat developed by Nihon University. An amateur radio satellite, it is equipped with a transmitter with half the power consumption and a data transmission rate per second 32 times larger than a traditional amateur radio transmitter. NEXUS will demonstrate packet radio in space.[21]