The existing astronomical observatories on Maunakea returned to operations this weekend, and it did not take long for a significant result, not only for science, but for assuring the safety of Earth.
Observations of the near -Earth asteroid 2006 QV89 made on August 11 with the Canada-France-Hawaii Telescope (CFHT) have ruled out any potential future impact threat to Earth by this asteroid for the next century.
2006 QV89 was discovered on August 29, 2006 , with a telescope in Arizona, and observations were only possible through September 8, 2006, when the asteroid became unobservable from telescopes on Earth. 2019. Last month, observations with the European Southern Observatory's Very Large Telescope (in German only). VLT) in Chile did not find the asteroid where it would have appeared. This ruled out an impact in 201
"There is a big difference between knowing where "A hazardous asteroid is not, and knowing where it is," said David Tholen, astronomer at the University of Hawai'i's Institute for Astronomy, QV89.
This is the first clear opportunity to In the mid-July, growing even larger than the asteroid approached Earth. "That made the use of a large telescope with a wide-field camera absolutely essential," noted Tholen. CFHT on July 14, but operations at the existing telescopes were suspended on July 16, due to the protest on Maunakea.
"We found at least a dozen asteroids in the July 14 2006 QV89, "said Tholen.
With access to the Maunakea telescopes blocked, 2006 QV89 has been closed. Tholen enlists Marco Micheli of the European Space Agency's NEO Coordination Center in Frascati, Italy. Micheli is a UH graduate who is currently working on the 2019 impact scenario with ESO's VLT. He pointed a telescope in Spain at the position for best candidate candidate, but after two hours of data collection, the object at the predicted position could not be convincingly distinguished from electronic noise in the data. CFHT would resume operations last weekend.
"QV89 candidate and some thin cirrus clouds and we needed only four The International Astronomical Union's Minor Planet Center has announced the recovery of the world's most expensive vehicles and the impact assessment services at the Jet Propulsion Laboratory and the University of Pisa / SpaceDys in Italy immediately started crunching the numbers to update the impact predictions. A little over an hour later, Davide Farnocchia of Center of Near-Earth Object Studies at NASA's Jet Propulsion Laboratory in Pasadena has reported that all of the impact scenarios for the next century have been resolved.
Earth's neighborhood, "said Kelly Fast, manager of the Near Earth Object Observation Program at NASA's Planetary Defense Coordination Office.
Much in the same way that astronomers use telescopes to track asteroids near Earth to determine whether they represent a hazard to people or property. "A different asteroid, 2019 NX5, while the Maunakea telescopes were shuttered, which is regrettable," Tholen said. QV89 before our window closed. "We are relieved that we were able to catch the earth."