China’s mysterious spaceplane raises orbit three months after launch

China’s experimental spacecraft launched from the Jiuquan Launch Center in August 2022. It’s been nearly eight weeks since we last heard from China’s spaceplane, which launched from the the Gobi Desert in early August. But things are happening, as the spaceplane recently fired its thrusters to ascend to a higher and more circular orbit, but for reasons that aren’t entirely clear.

The reusable spacecraft took off onboard a Long March 2F carrier rocket from the Jiuquan Satellite Launch Center on August 4. As China’s second attempt to launch a spaceplane, the experimental vehicle flew at a higher altitude and for a longer period of time than its predecessor.

Shortly after it launched, the spaceplane stayed at an orbit of about 215 miles by 369 miles (346 kilometers by 593 kilometers) inclined at 50 degrees above the equator. But experts monitoring its orbit noted a changed occurring on Sunday, October 23, with the spacecraft raising its orbit to a near-circular 371 by 378miles (597 by 608 kilometers), SpaceNews reported.

China has shared little information regarding its spaceplane, with the Chinese government stating that it would remain in orbit for a vague “period of time,” state media reported at the time of its launch.

The spaceplane is a hybrid airplane-spacecraft vehicle that launches to space onboard a traditional vertical rocket. While operating like a regular aircraft in Earth’s atmosphere, the reusable vehicle acts like a spacecraft in space, allowing the reusable craft to complete missions in space and then return to the surface where it performs a horizontal airplane-like landing.

China’s first experimental spaceplane launched in September 2020 and stayed in orbit for about two days before landing back on Earth. It also flew at about 206 miles by 216 miles with a similar inclination (331 km by 347 km), according to Ars Technica. The spaceplane also released a single payload before landing.

China’s second go at launching and testing a spaceplane appears to be more ambitious, with the second vehicle staying aloft for nearly three months and raising its operational orbit.

The spaceplane project falls under the China Academy of Launch Vehicle Technology, a state-owned vehicle manufacturer that makes both civilian and military space launch vehicles. Similarly in the United States, the Space Force has its own spaceplane, the Boeing X-37. The Space Force’s spaceplane launched in May 2020 for its sixth test flight and has been flying nonstop ever since.

Both experimental vehicles are still aloft in the skies, with no word on when they may land just yet. yahoo.com