One is the explorers first Earth satellite in the United States January 31, 1958 in Florida Kara Venal launch angle, late of the world's first Earth satellite in the former Soviet Union October 4, 1957 launch Pets puppy Lycra second satellite and the same year on November 3 launch.
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The main parameters
Explorer I satellite total weight 13.97 kg, of which 8.3 kg heavy equipment, its orbit perigee of 360 km and an apogee of 2520 km and 114.9 minutes around the Earth in a circle, around the long axis of rotation 50 weeks per minute.
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Portable instrument
Satellite carries instruments include physical cosmic ray detector, three external temperature probe, a temperature probe the front, _set_ the microwave background detectors. Detection result data through a 60-kilowatt transmitter to 108.03 MHz frequency, and another 10 kW transmitter to 108.00 MHz frequency transmitter to the ground station.
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One of the main findings of explorers
One of the most important explorers discovered the magnetic radiation belts is to determine extraterrestrial to analyze explorers One person in charge of the data sent back to Iowa team named Alan von von Alan belt.
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"Explorer 1" during launch
Had a panic after years of embarrassment, the U.S. has finally ushered in a day of national rejoicing: December 6, 1957. That day, the Navy's "Pioneer" rocket to the launch site at Cape Canaveral, Florida, the first launch of an American satellite. To this end, the United States down a boil, public sentiment boosted by whom, like snowflakes have congratulatory messages from all over the country flew into the Pentagon. While a large number of news reporters rushing to; defense minister personally go expedition; President Eisenhower stopped the office; eyes of the world, together with pegged Cape Canaveral launch site. However, the control room, Dr. Hagen is responsible for "Pioneer" program has always face plate with a pair of dumbfounding. Soviet satellite days, America's "pioneer" in fact become a "guard", but the Navy "Vanguard" team is still working day and night to speed up the pace of preparations, swear in any case before the end of the U.S. satellite launch, absolutely allow "Soviet satellite 1957, U.S. satellite 1958." In order to hold its ground first, the Navy is responsible for "pioneer" Dr. Hagen plan in a speech said: If all goes well, is expected in November or December test launch of a three-level "Pioneer" rockets, rocket capable of launching the ability of the satellite. However, I do not know because the Soviet satellite disrupting nerve White House officials, who were still passing information intentionally or unintentionally exaggerated deformation, in short, the public will be Dr. Hagen speak of "test-fired a rocket," misrepresented as "to launch a satellite. " Thus, the presidential press secretary Haggett immediately released to the outside world big news: Navy "Pioneer" was about to launch a satellite! The news was announced, the national uproar. The people, the general trend has been to cook the rice mature rice, satellites also have hair, no hair they have hair. Navy there is unspeakable, helpless, had yielded, it would be wrong, busy original plan to test launch a rocket to launch a satellite into temporary. The results rush into naturally difficult to imagine. After the "Pioneer" rocket firing only two seconds, then the presence of tens of millions of television viewers in the United States face, frankly planted a somersault down from the sky, crashed on the launch pad a red and yellow flames interwoven into. Washington, a middle school student, the family immediately smashed the TV smash; Eisenhower a high head, once again drawn down; Thankfully, the United States accepted the broad mind once a great "prisoners of war" - cloth Braun. 90-day period, the Braun working hard with his colleagues, and finally six days ahead of the launch readiness. Meanwhile, a group of physicists at Iowa State University in a basement, also became engaged in a 8 kg weight of small satellites, named "Explorer 1." January 29, 1958, Cupid-c rocket and "Explorer 1" satellite erected in the Cape Canaveral launch site, just waiting for the order, can be blasted off. Thousands of pairs of eyes again fixed on the United States. However, the false starts. As the high-altitude wind, launch postponed 24 hours. Wait 24 hours has elapsed, the rapids of the wind still increasing, once again forced to postpone the launch! Until January 30 morning, carrying the "Explorer 1" Cupid rocket was in a tense atmosphere blasted off. 8 minutes later, the satellite back from the day the rumor sounds - fully successful launch! Pentagon generals legs knocked over a stool, have competed with von Braun shook hands and embraced. Braun addition to moving, no words, only two lines of tears from his eyes quietly overflow. That night, the White House held a grand celebration ceremony. Eisenhower personally for Braun issued a U.S. Citizen Service Award. Yes, the Soviet satellite into space 119 days later, the United States finally another one "Little Moon" is also linked to the sky. Since then, mankind into the universe, the history of the space race, and kicked off!