What happened Phobos 1?
The mission failed on 2 September 1988 when a computer malfunction caused the end-of-mission order to be transmitted to the spacecraft. At the time of launch it was the heaviest interplanetary spacecraft ever launched, weighing 6200 kg.
What is the sidereal period of Phobos?
Phobos (moon)
| Discovery | |
|---|---|
| Apoapsis | 9517.58 km |
| Semi-major axis | 9376 km (2.76 Mars radii/1.472 Earth radii) |
| Eccentricity | 0.0151 |
| Orbital period (sidereal) | 0.31891023 d (7 h 39 m 12 sec) |
What did Phobos 2 do?
Phobos 2 was the last space probe designed by the Soviet Union. It was designed to explore the moons of Mars, Phobos and Deimos. It was launched on 12 July 1988, and entered orbit on 29 January 1989.
What happened to Phobos Grunt?
Efforts to reactivate the craft were unsuccessful, and it fell back to Earth in an uncontrolled re-entry on 15 January 2012, over the Pacific Ocean, west of Chile. The return vehicle was to have returned to Earth in August 2014, carrying up to 200 g (7.1 oz) of soil from Phobos.
How big is Phobos and Deimos?
Identity crisis. Phobos and Deimos bear more resemblance to asteroids than to Earth’s moon. Both are tiny — the larger, Phobos, is only 14 miles across (22 kilometers), while the smaller, Deimos, is only 8 miles (13 km), making them some of the smallest moons in the solar system.
Where is Phobos 1 now?
The Soviet spacecraft Phobos 1, launched in July this year and now en route to Mars and its major moon, was lost due to an incorrect ground control command.
Is Phobos a dwarf planet?
Phobos is made up of the same matter as asteroids and dwarf planets, composed mostly of material similar to Type I or II carbonaceous chondrites. It’s density is too light to be solid rock and it is one of the least reflective objects in the solar system.
What is Swift and Voltaire on Deimos?
Swift crater is a crater on Mars’s moon Deimos. It is about 3 km (1.9 mi) in diameter. Swift crater is one of two named features on Deimos, the other being Voltaire crater. On 10 July 2006, Mars Global Surveyor took an image of Deimos from 22,985 km (14,282 mi) away showing Swift crater.
What will eventually happen to Phobos and why?
Because Phobos orbits so close to Mars, gravity is continually pulling it closer to the planet. It is believed that it will one day crash into Mars, possibly in as little as 10 million years. When this happens, it may eventually turn it into a small ring that will continue to spiral into the planet.
How big is Phobos vs Earth?
Phobos has a diameter 14 miles (22 kilometers) and was 3,900 miles (6,240 kilometers) from the rover at the time of the image. Earth’s moon has a diameter of 2,159 miles (3,474 kilometers) and is typically about 238,000 miles (380,000 kilometers) from an observer on Earth.
How small are Phobos and Deimos?
Phobos and Deimos bear more resemblance to asteroids than to Earth’s moon. Both are tiny — the larger, Phobos, is only 14 miles across (22 kilometers), while the smaller, Deimos, is only 8 miles (13 km), making them some of the smallest moons in the solar system.
How big is Phobos?
7.0008 mi
Phobos/Radius