File:Explorer1.jpg · Wikimedia Commons · See Wikimedia Commons
探险者1号
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Explorer 1 was the first satellite launched by the United States, sent into orbit in 1958 during the Space Race with the Soviet Union. It mattered because it demonstrated American capability in space technology and carried instruments that made important scientific discoveries, including detecting the radiation belts around Earth.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Names
- Explorer I, 1958 Alpha 1
- Mission type
- Earth science
- Operator
- JPL / ABMA
- Harvard designation
- 1958 Alpha 1
- Cospar id
- 1958-001A
- Satcat number span no
- 00004
- Mission duration
- 120 days (planned), 111 days (achieved)
- Spacecraft
- Explorer I
- Spacecraft type
- Science Explorer
- Bus
- Explorer 1
- Manufacturer
- Jet Propulsion Laboratory
- Launch mass
- 13.97 kg (30.8 lb)
- Dimensions
- 203 cm (80 in) length, 15.2 cm (6.0 in) diameter
- Power
- 60 watts
- Launch date
- 1 February 1958, 03:47:56 GMT
- Rocket
- Juno I (RS-29)
- Launch site
- Atlantic Missile Range , LC-26A
- Contractor
- Army Ballistic Missile Agency
via Wikipedia infobox
Wikidata facts
- Instance of
- artificial satellite
- Operator
- Army Ballistic Missile Agency
- Followed by
- Explorer 2
- Duration
- 9590400
- Developer
- Jet Propulsion Laboratory
- Parent body
- Earth
- Mass
- 13.97
- Orbital period
- 114.8
- Manufacturer
- Jet Propulsion Laboratory
- Image
- Explorer1.jpg
- Significant event
- atmospheric entry
Show 18 more facts
- Commons category
- Explorer 1
- carries scientific instrument
- Geiger counter
- UTC date of spacecraft launch
- 1958-02-01
- space launch vehicle
- Juno I
- Commons gallery
- Explorer 1
- time of object orbit decay
- 1970-03-31
- start point
- Cape Canaveral Launch Complex 26
- type of orbit
- medium Earth orbit
- periapsis
- 358
- apoapsis
- 2550
- orbital inclination
- 33.24
- orbital eccentricity
- 0.140
- semi-major axis of an orbit
- 7832.2
- argument of periapsis
- 311.5310
- mean anomaly
- 48.3249
- longitude of ascending node
- 334.617
- nominal power output
- 60
- native label
- Explorer 1
via Wikidata · CC0
Article · 中文
探险者一号（英語：Explorer 1）是美国于1958年1月31日在佛罗里达州卡拉维纳尔角发射的第一颗地球人造卫星，晚于前苏联于1957年10月4日发射的世界第一颗地球人造卫星史普尼克1号和同年11月3日发射的携带小狗莱卡的第二颗卫星。 探险者一号卫星总重13.97千克，其中仪器重8.3千克，它的轨道近地点为360千米，远地点2520千米，114.9分钟绕地球一圈，每分钟围绕长轴自转50周。 卫星携带的仪器包括体格宇宙射线探测仪，三个外部温度探头，一个前部温度探头，一套微波背景探测器。探测结果数据通过一个60毫瓦的发射器以108.03兆赫频率和另一个10毫瓦的发射器以108.00兆赫的频率发射到地面接收站。 探险者一号最主要的发现是确定了地球外的磁辐射带，以分析探险者一号发回数据的负责人詹姆斯·范·艾伦命名为范艾伦辐射带。探险者一号留在軌道上直到1970年，在它后来有一直跟著的探索者计划系列有90多個科研航天器。
Abstract from DBpedia / Wikipedia · CC BY-SA