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国际空间站两颗搭载业余无线电载荷的人造卫星已顺利进入运行轨道

Satellite Package Carrying Amateur Radio Payloads Released into Orbit from ISS

A package of two satellites carrying Amateur Radio payloads has been deployed into orbit from the International Space Station (ISS) as part of a collaborative Texas A&M and University of Texas at Austin research effort. Built by Texas A&M students, AggieSat4 (AGS4) will release UT's Bevo-2 CubeSat in about a month, once it is far enough away from the ISS. Both schools received support from NASA’s Johnson Spaceflight Center (JSC) for the design, construction, testing, and launch phases. The goal of the overarching LONESTAR (Low Earth Orbiting Navigation Experiment for Spacecraft Testing Autonomous Rendezvous and Docking) program is for the two satellites to individually rendezvous with each other and perform docking and undocking maneuvers.

国际空间站两颗搭载业余无线电载荷的人造卫星已顺利进入运行轨道，该项目为国际空间站与德州农工大学和德克萨斯大学的合作研究成果的一部分。一旦AggieSat4 (AGS4) 卫星离开国际空间站的距离足够，大约在一个月内它就会释放由德州农工大学学生设计制造的UT's Bevo-2 立方体卫星。上述两所学校的项目在设计、制造、测试和发射阶段得到了NASA的林顿·约翰逊太空中心 (JSC) 的支持。LONESTAR(低地球轨道航天器测试导航实验自主交会对接)项目的首要目的是为两颗卫星能够独立相互对接，并能执行对接-分离动作。

“The overall objective is to find ways for small spacecraft to join together autonomously in space,” Helen Reed, KD7GPX, professor of aerospace engineering and director of the AggieSat Lab at Texas A&M told NASA. “We need simple systems that will allow rendezvous and docking with little to no help from a human, which will become especially important as we venture farther out into space. Applications could include in-space assembly or reconfiguration of larger structures or systems as well as servicing and repair.”

德州农工大学航空航天工程教授，AggieSat实验室主任Helen Reed（呼号：KD7GPX）告知NASA他们的总目标是寻找小飞船在太空中自主结合的方法。“我们需要简单的系统，它将允许在无人协助的情况下交会对接，这将变得尤其重要，因为我们将探索更深领域的太空。这些应用包括在太空内的维修或大型结构或系统的参数调整，也包括服务和维修工作。”

The AggieSat team received its first beacon signal from the satellite at its Texas A&M Riverside Campus ground station. The AggieSat4 team is asking any Amateur Radio operators receiving the beacon signal to send any data to the AGS4 team. AggieSat4 will transmit 9.6 kbps FSK telemetry and 153.6 kbps FSK on 436.250 MHz. Once it’s placed into its own orbit, Bevo-2 will transmit on 437.325 on CW and 38.4 kbps FSK.

AggieSat团队在德州农工大学河滨校区地面站首次收到卫星发来的信标信号。他们希望业余无线电爱好者将接收到的任何有关信标信号的数据反馈过来。AggieSat4 将在436.250MHz 9.6 kbps FSK 遥测and 153.6 kbps FSK发射，一旦它进入自己的轨道， Bevo-2将在 437.325 用 CW 模式和 38.4 kbps FSK.

Both satellites were launched to the space station during a December 6, 2015, resupply mission. Earlier last week, Astronauts Tim Peake, KG5BVI, and Scott Kelly made preparations to deploy the sizeable LONESTAR phase 2 mission satellite package from the ISS, using the SSIKLOPS deployer. The satellite mission also will demonstrate communication cross links, data exchange, GPS-based navigation, and other tasks. AggieSat4 will capture images of the Bevo-2 release.

两颗卫星已于2015年12月6日发射到空间站进行补给任务。上周的早些时候，航天员Tim Peake（呼号： KG5BVI）和Scott Kelly 准备在第二阶段从空间站部署大量的LONESTAR任务，卫星将使用SSIKLOPS系统。卫星还将演示沟通交互链接、数据交换、gps导航和其他任务。AggieSat4将捕获Bevo-2释放的图像。

The satellites were independently developed by student teams at the two universities. Both teams were responsible for development plans for their satellite and had to meet established mission objectives.

这两颗卫星都是由两所大学的学生团队独立研发的。两个团队为他们的卫星发展计划和建立的任务目标负责。

The Bevo-2 Satellite was designed, built, and tested in the Texas Spacecraft Lab (TSL) at the University of Texas at Austin. “This whole experience is very exciting,” TSL Director Glenn Lightsey, KE5DDG, said last fall as undergraduate and graduate students were in the final stages of their project. “It’s great to have a research program where our students can build satellites that fly in space.” Reed and Lightsey are co-investigators for the LONESTAR 2 project.

Bevo-2卫星由德克萨斯大学在奥斯汀的航天器实验室设计、制造和测试，实验室主任Glenn Lightsey,（呼号：KE5DDG）表示在去年秋季，那时本科和研究生们参与的整个项目的最后阶段，整个实验过程非常令人兴奋，能有一个让我们的学生自制卫星并发射上天的研究项目是极好的。Reed 和 Lightsey是LONESTAR 2工程的共同研究者。

（英文来源：arrrl.org)