A ULA Atlas 5 rocket today successfully launched the U.S.’s asteroid sample return mission, OSIRIS-Rex.
NASA has approved OSIRIS-Rex’s Thursday launch on an Atlas 5 rocket.
Launch time is 7:05 pm (Eastern).
NASA recently gave a press tour of the clean room where the asteroid probe OSIRIS-Rex is being prepped for its September 8 launch, and one reporter from that tour wrote a very nice description of what it was like.
After such a tour, most reporters write up stories that describe the spaceship, its mission, and its status. This reporter however did something better. He wrote up what it’s like to enter a clean room for a mission only weeks from launch.
Our belongings have been lined up in a row alongside us. And then the dog arrives.
It’s a beautiful specimen of a german shepherd, long and enthusiastic, being led by a sturdy military-type with a buzzcut wearing what looks like mercenary gear. The dog is led down the row of belongings once. Then twice. Then he and his owner head back to their truck and drive off. We have passed. We are free to go into the blessed blast of cool air on the bus that’s been idling alongside us for what seems like hours, but has really only been about 15 minutes.
And that’s only the start. Read it all. Quite fascinating.
ULA has rearranged the upcoming launch schedule of its Atlas 5 in the wake of its investigation of the valve issue that causes a premature shutdown of the first stage Russian engine during the Cygnus launch in March.
Originally they had intended to do three launches before the September 8 launch of NASA’s Osiris-REX asteroid mission. Now they will only do two, to give them additional time to test the rocket that will launch Osiris-REX.
August will be spent stacking an Atlas 5 rocket with a single solid booster, the 411 configuration, and rolling the vehicle to the pad for a rare countdown dress rehearsal to ensure systems are operating correctly ahead of the time-sensitive launch of NASA’s OSIRIS-REx probe to asteroid Bennu.
The spacecraft has a launch window that closes October 12.
In what might be a first for the planetary science/engineering community, an unmanned probe, being built to bring samples back from the asteroid Bennu, is turning out to be lighter than expected, thus allowing engineers to stuff its tanks with extra fuel to extend its mission.
The OSIRIS-REx spacecraft, being built at a Lockheed Martin facility in Denver, is coming in lighter than the lift capability of the Atlas 5 rocket, which will lift off in its “411” configuration with a four-meter payload fairing, a single-engine Centaur upper stage, and one strap-on solid rocket booster.
The proposal — described as a “heavy launch option” — would add an extra 341 pounds of fuel to the spacecraft’s fuel tank.
Planetary probes never end up lighter than planned, at least until now. During construction scientists have always found it impossible to resist adding more instruments or capabilities, and thus engineers always struggle to get the spacecraft built within its weight budget. For OSIRIS-REx to have this wonderful problem is surely astonishing.
A rose by any other name: In a NASA contest, a nine-year-old has named asteroid 1999 RQ36 after the Egyptian god Bennu.
1999 RQ36, or Bennu, is an important asteroid for two reasons. First, NASA is sending an unmanned sample return mission to it in 2016. Second, some calculations suggest the asteroid has a 1 in a 1000 chance of hitting the Earth in 2182.
In other naming news, the private space company Uwingu has launched its “Adopt-a-Planet” campaign.
This open-ended campaign gives anyone in the public—worldwide—the opportunity to adopt exoplanets in astronomical databases via Uwingu’s web site at www.uwingu.com. Proceeds from the naming and voting will continue to help fuel new Uwingu grants to fund space exploration, research, and education.
As noted earlier, they are ignoring the IAU’s stuffy insistence that only the IAU can name things in space.
Do you want to name an asteroid that might hit the Earth? NASA has started a contest for students to do just that.
The scientists building a space probe to go to asteroid 1999 RQ36 have better pinpointed its orbit.
Knowing this asteroid’s orbit is not only important for planning the mission. 1999 RQ36 has a 1in a 1000 chance of hitting the Earth in 2182.
Astronomers plan one last close look at 1,900-foot-wide asteroid before sending a space probe there to collect samples.
Discovered in 1999, the OSIRIS-REx target asteroid, designated 1999 RQ36, nears Earth once every six years. During the 2011 closest approach in early September, it will be 10.9 million miles (17.5 million kilometers) away. In 1999, closest approach was 1.4 million miles (2.3 million kilometers).
Strangely, the article above never mentions the fact that 1999 RQ36 has 1 in a 1000 chance of hitting the Earth in 2182, which to my mind is the primary reason for studying it.
Asteroid sample return mission on slate for NASA in 2016. The asteroid chosen in 1999 RQ36, which is significant.
The space rock has been classified as a potentially hazardous asteroid, since its orbit brings it close to Earth in the year 2182. There is an extremely remote chance (a recent study pegs it at about 1-in-1000) that the 1,900-foot-wide (579-meter) asteroid could pose a threat to Earth.
