The U.S. Air Force’s X-37B space plane may be secretive, but it’s not invisible.
Netherlands-based satellite tracker Marco Langbroek snapped long-exposure photos of the robotic mini-shuttle zooming over the city of Leiden yesterday (Aug. 20), capturing the spacecraft’s rapid trek across the night sky as a thin streak of light.The Air Force discloses little about X-37B missions, keeping details about the plane’s orbit and most of its payloads close to the vest. But Langbroek said he’s confident that the light trail he photographed came from the space plane, which is also known as the Orbital Test Vehicle (OTV).
“The object in question is not in the public catalogue of satellite orbits maintained by JSpOC (the U.S. military tracking network), which shows for an object this bright that it must be a ‘classified’ object,” Langbroek told Space.com via email. “We nevertheless know where ‘classified’ objects like this are, because they are routinely tracked by a small network of amateur trackers, in which I takepart.”