orbital slots due to Tongasat's efforts. In 2002, Tongasat launched the Esiafi 1 satellite; as of 2015, a satellite in its spot was still in operation.... 12 KB (1,287 words) - 22:03, 25 April 2024 |
started its own satellite telecommunication service when it obtained the Esiafi 1 (former private American Comstar D4) satellite (launched in 1981) that... 3 KB (270 words) - 12:30, 3 October 2023 |
Jonathan's Space Page. Retrieved 1 May 2013. Zak, Anatoly. "Sputnik's Mission". RussianSpaceWeb. Retrieved 4 March 2013. "Explorer 1". Milestones of Flight. Smithsonian... 41 KB (564 words) - 17:22, 15 March 2024 |
Some of these satellites are separated from each other by as little as 0.1° longitude. This corresponds to an inter-satellite spacing of approximately... 65 KB (729 words) - 23:00, 25 April 2024 |
 | 1981 in spaceflight (section STS-1) The following is an outline of 1981 in spaceflight. STS-1 (Space Transportation System-1) was the first orbital spaceflight of NASA's Space Shuttle program... 143 KB (292 words) - 03:29, 2 March 2024 |