NASA’s Next Generation James Webb TelescopeIt has covered a distance of about one million miles from the Earth, which has reached its final destination. But, science operations are only expected to begin in late June or early July, SPACE.com reported. Till then much remains to be done. A joint effort with the European Space Agency (ESA) and the Canadian Space Agency, the Webb mission was launched on December 25 last year.
On Monday at 2 p.m. EST, Webb slipped into orbit around Earth-Sun Lagrange Point 2, a gravitationally stable spot in space about 930,000 miles (1.5 million kilometers) away from our planet. “We expect the first science images from JWST to be back in about five months,” said Amber Strawn, deputy project scientist at Web Science Communications, during a Webcast Web event on Tuesday.
The web team will be working on two major tasks over the next five months. The first is precisely aligning the 18 hexagonal segments that make up Webb’s 6.5-metre-wide primary mirror. So far the primary mirror segments and secondary mirrors of the web have been deployed from their launch positions.
For the web to function properly, the surface that collects the light must be nearly perfect. The report said the process, which will take about three months, is expected to begin next week. In addition, the Webb team will focus each of the 18 primary mirror segments on a bright, distant star. And they have already chosen this target – a Sun-like star known as HD 84406 that is part of the constellation Ursa Major (The Great Bear).
“It’s near the bowl of the Big Dipper,” Lee Feinberg, Webb Optical Telescope Element Manager at NASA Goddard, said in a separate webcast event Monday. “You can’t see it with your naked eye, but I said you can see it with binoculars.”
After the primary mirror is established, the Webb team will align it with the 0.74-meter-wide secondary mirror, so named because it is the second surface the Photon Observatory’s four science instruments will encounter on their way. Team members said this milestone would mark the end of major mirror work. But Webb’s instruments will still need to be calibrated and calibrated. The team expects to do everything in late June or early July, the report said.
Straun said the first year of observing science has already been planned.
“We will be looking at everything in the universe, from objects within our solar system, to discovering the first galaxies born after the Big Bang, and in time and space in between.” “It’s going to be awesome.”
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