卫星研制与发射
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科技日报:卫星互联网低轨19组卫星成功发射
Ke Ji Ri Bao· 2026-01-21 08:53
Core Viewpoint - The successful launch of 19 low Earth orbit satellites for satellite internet by China using the Long March 12 rocket marks a significant advancement in China's commercial space capabilities [1] Group 1: Launch Details - The Long March 12 rocket was launched from the Hainan commercial space launch site at 15:48 on January 19 [1] - The mission was successful, with the satellites entering their designated orbits [1] Group 2: Rocket Specifications - The Long March 12 is a new generation of cryogenic liquid launch vehicle developed by the China Aerospace Science and Technology Corporation's Eighth Academy [1] - It is China's first 4-meter single-core launch vehicle, with a near-Earth orbit carrying capacity of no less than 12 tons and a 700-kilometer sun-synchronous orbit capacity of no less than 6 tons [1] - The rocket can adapt to different mission requirements with fairing configurations of 4.2 meters and 5.2 meters in diameter, supporting both single and multiple satellite launches [1] Group 3: Satellite Technology - The 19 low Earth orbit satellites were developed by Galaxy Space, which focuses on cost-effective technologies such as phased array, millimeter-wave antennas, and integrated electronics [1] - The company achieved a fully digital process for the first time during the development, enhancing efficiency through automated testing, intelligent assembly, and launch site process optimization [1]
我国首颗具备全极化业务化观测能力的商业SAR卫星发射成功
Xin Jing Bao· 2025-08-19 08:27
Core Viewpoint - The successful launch of China's first commercial SAR satellite "AIRSAT-05" marks a significant advancement in space-based observation capabilities, particularly in multi-dimensional and multi-frequency observation systems for various applications [1][2] Group 1: Satellite Launch and Capabilities - "AIRSAT-05" was launched on August 19 and successfully entered its designated orbit, supported by national major projects [1] - The satellite features an X-band multi-polarization synthetic aperture radar with a maximum imaging resolution better than 1 meter and a maximum observation width exceeding 300 kilometers [1] - It integrates an intelligent on-orbit processing module for high-quality radar imaging and intelligent extraction of ice and ocean information, enhancing the timeliness of remote sensing services [1] Group 2: Strategic Importance and Innovation - "AIRSAT-05" is positioned at the forefront of international technology for space-based SAR observation across land, sea, and ice, addressing major national needs and commercial aerospace strategic industries [2] - The satellite exemplifies the deep integration of technological and industrial innovation in the field of space information in China [2]
印度成功发射一颗地球观测卫星
news flash· 2025-07-30 12:27
Core Viewpoint - India successfully launched a synthetic aperture radar satellite, NISAR, developed in collaboration with NASA, marking the first joint Earth observation mission between the Indian Space Research Organisation (ISRO) and NASA [1] Group 1 - The NISAR satellite aims to study land and glacier changes, terrestrial ecosystems, and oceans [1] - This collaboration signifies a significant milestone in international space research partnerships [1]