Showing posts with label satellite. Show all posts
Showing posts with label satellite. Show all posts

Thursday, June 16, 2011

iran launches second satellite

iran launches second satelliteIran launched Rasad-1 (Observation-1) into orbit, Wednesday. You have to like the humor in a Satnews Daily article, where subheading reads, "Iran... Why, Of Course This Is A Satellite Tasked With Peaceful Intentions (Launch)." Rasad-1 follows launch of Omid (Hope) in 2009. Iran's observation satellite weighs 34 pounds, will orbit every 90 minutes 162 miles up at an inclination of 55.7 degrees. Where's the right wing fear mongers to recite party line: rocket tech used in launch can also launch missiles? The present writer felt a deja vu to a more innocent time when space exploration meant new frontiers with wide horizons other than militarization and weaponization! The launch looked rudimentary if well-done with a resemblance to the fifties and sixties. "Seh do yek"...how do you say lift off in Farsi and may get more familiar with their countdown in time?

Tuesday, April 12, 2011

50th anniversary: first man in space

50th anniversary of first manned space flight
50th anniversary: first man in space Russian cosmonaut Yuri Gagarin blasted off aboard Vostok 1, on April 12, 1961, to become first man in space. The event proved a second political coup for the Soviet Union. The Communists had put Sputnik the first satellite in orbit. You can view a condensed version of Gagarin's story in just 39 seconds on YouTube.


related: vladimir ilyushin - the real first man in space?

Wednesday, December 29, 2010

zombiesat is alive!

zombiesat is alive!Intelsat's Galaxy 15 communications satellite, after drifting in orbit since last April, has been revived! The zombiesat gained notoriety for its intrusions on neighbors, after its electronic brains were supposedly fried by a solar flare, which caused several crises and interference avoidance maneuvers. The solution was to drain power from the comsat and induce a system reboot, which occurred on Dec. 23, 2010. The satellite is currently in safe mode and no longer poses a threat to the neighborhood. Intelsat has a FAQ section, which includes information on an in-orbit protection plan! Intelsat remains hopeful software can be reloaded from the ground and the satellite's functions fully restored! Or, will the zombiesat need to eat other satellite brains in order to survive?

Tuesday, December 14, 2010

voyager 1 nears interstellar space

voyager 1 nears interstellar spaceUniverse Today reports Voyager 1, launched on Sept. 5 1977, has reached a point in outer space where there is no solar wind.  The solar wind has measured zero since June, when Voyager was 10.6 billion miles from the Sun.  “The solar wind has turned the corner,” said Ed Stone, Voyager project scientist based at the California Institute of Technology in Pasadena, Calif. “Voyager 1 is getting close to interstellar space.” Voyager 1 has reached the boundary of the solar system, scientists believe the satellite will cross from the heliosphere and enter interstellar space in about 4 years.

Wednesday, November 24, 2010

x-37b initial mission near end?

The Air Force's X-37B space plane may be near end of initial mission, reports CS Monitor article.  The spacecraft, also known as Orbital Test Vehicle 1, launched April 22nd and built for 270 day flights, suggests it may be on homestretch.  The mission of the secretive X-37B is still a subject of much speculation.  Ted Molczan, a veteran skywatcher, observes  "ground tracks that nearly repeat after two, three or four days have long been a feature of U.S. imaging reconnaissance satellites, which leads me to suspect that X-37B is carrying experimental sensors for that purpose". The spacecraft may be testing experimental sensors before they are placed on expensive satellites?  X-37B will land at Vandenberg AFB if the mission is completed as planned.

Sunday, March 7, 2010

dark, dangerous asteroids found lurking near earth

dark, dangerous asteroids found lurking near earthfrom new scientist: An infrared space telescope has spotted several very dark asteroids that have been lurking unseen near Earth's orbit. Their obscurity and tilted orbits have kept them hidden from surveys designed to detect things that might hit our planet.

Called the Wide-Field Infrared Survey Explorer (WISE), the new NASA telescope launched on 14 December on a mission to map the entire sky at infrared wavelengths. It began its survey in mid-January.

In its first six weeks of observations, it has discovered 16 previously unknown asteroids with orbits close to Earth's. Of these, 55% reflect less than one-tenth of the sunlight that falls on them, which makes them difficult to spot with visible-light telescopes. One of these objects is as dark as fresh asphalt, reflecting less than 5% of the light it receives.

Many of these dark asteroids have orbits that are steeply tilted relative to the plane in which all the planets and most asteroids orbit. This means telescopes surveying for asteroids may be missing many other objects with tilted orbits, because they spend most of their time looking in this plane.

Fortunately, the new objects are bright in infrared radiation, because they absorb a lot of sunlight and heat up. This makes them relatively easy for WISE to spot.