On January 29, 2004, the spacecraft was put in hibernation mode with only the solar panels and receiver active, in a three-year heliocentric orbit that would return it to Earth vicinity on January 14, 2009.
42.
Instead, the team said, the " ISEE-3 Interplanetary Citizen Science Mission " would gather data as the spacecraft flies by the Moon on August 10 and enters a heliocentric orbit similar to Earth's.
43.
On March 5, 1979, after dropping probes into the atmosphere of Venus, Venera 11 and Venera 12, while in heliocentric orbits, were hit at 10 : 51 am EST by a blast of gamma ray radiation.
44.
Due to its binary nature and its low delta-v heliocentric orbit " ( also see Hohmann transfer orbit ) ", this asteroid was selected for MarcoPolo-R, which was the PLATO by the end of 2012.
45.
It was also the first deep space engine ignition, the first spacecraft to reach escape velocity and, while the spacecraft missed the Moon with which it was supposed to crash, it became the first human made object to enter an heliocentric orbit.
46.
The spacecraft, along with the rocket's Blok-L upper stage, were initially placed into a 229 ?282 km low Earth orbit, before the upper stage fired to place " Venera 1 " into a heliocentric orbit, directed towards Venus.
47.
In practice, however, the distance between the Moon and the Earth is so much smaller than their distance from the Sun that even the Moon's heliocentric orbit is very close to circular . talk ) 12 : 46, 11 December 2005 ( UTC)
48.
Based on an idea by British amateur astronomer Nick Howes, a team of experts has been assembled to try to locate the Lunar Module of the Apollo 10 mission nicknamed " Snoopy ", which was released during the mission and is currently thought to be in a heliocentric orbit.
49.
A " trans-Mars injection ( TMI ) " is a heliocentric orbit in which a propulsive maneuver is used to set a spacecraft on a trajectory, also known as "'Mars transfer orbit "', which will cause it to arrive at Mars.
50.
In the " Tantrasangraha " ( 1500 ), he further revised his planetary system, which was mathematically more accurate at predicting the heliocentric orbits of the interior planets than both the Tychonic and Copernican models, but like Indian astronomy in general fell short of proposing models of the universe.
