South Korea: Numerous close calls between its lunar orbiter and others

A South Korean official has revealed that during the ongoing mission of its lunar orbiter Danuri it has had to act to avoid dozens of potential collisions with three other spacecraft.

In a presentation at the Secure World Foundation’s Summit for Space Sustainability here July 11, Soyoung Chung, senior researcher at the Korea Aerospace Research Institute’s (KARI’s) strategy and planning directorate, said her agency had received 40 “red alarms” of potential collisions among spacecraft orbiting the moon in the last 18 months.

The warnings primarily involve close approaches involving KARI’s Korea Pathfinder Lunar Orbiter (KPLO), NASA’s Lunar Reconnaissance Orbiter (LRO) and the Chandrayaan-2 orbiter from India’s space agency ISRO, which are all in similar low orbits around the moon. The three agencies voluntarily share information about the orbits of their spacecraft using a NASA platform called MADCAP that generates collision warnings.

In addition, engineers had to institute a maneuver to avoid Japan’s SLIM lunar lander, and in that case the warning occurred only a day before the potential collision was to occur.

The official noted that at present there is no system to coordinate lunar orbits and spacecraft, as exists for Earth orbit. South Korea and Romania have proposed giving this power to the United Nations Committee on the Peaceful Uses of Outer Space, which based on UN politics would likely be a very bad thing for the commercial space industry. I guarantee that UN agency would quickly favor government missions in its decision, and would also favor authoritarian governments over capitalist nations.

Criminal charges filed by Navy against commanders of collision ships

The Navy today announced that it is filing criminal charges against the commanding officers of the two ships that were involved in collisions earlier this year.

The commanders of the two guided-missile destroyers that were involved in fatal collisions with merchant ships in 2017 will face military criminal charges that include charges of dereliction of duty, hazarding a vessel and negligent homicide, after the two incidents that resulted in the death of 17 sailors total, USNI News has learned.

Cmdr. Bryce Benson, former commander of USS Fitzgerald (DDG-62), along with three Fitzgerald junior officers, face a mix charges that include dereliction of duty, hazarding a vessel and negligent homicide related to the June 18 collision between the ship and ACX Crystal that resulted in the death of seven sailors, according to a statement from the U.S. Navy provided to USNI News.

Cmdr. Alfredo J. Sanchez, former commander of USS John S. McCain (DDG-56), faces similar dereliction of duty, hazarding a vessel and negligent homicide charges for the Aug. 21 collision between the guided-missile destroyer and a chemical tanker off the coast of Singapore that resulted in the death of 10 sailors.

I don’t know whether the military trials will be public (they should be), but if so they will reveal some very interesting details about what was happening on these Navy ships that allowed these collisions to occur.

Another Navy ship collision in the Pacific

Another Navy ship was involved in a collision in the Pacific on Saturday, this time with a Japanese tugboat.

The USS Benfold, a guided-missile destroyer, sustained minor damage when a tugboat lost propulsion and drifted into the ship, the Navy said. No one was injured on either vessel and an initial assessment of the damage showed that the destroyer only sustained minimal damage including scrapes.

It sounds as if the majority of the blame falls on the tugboat, though one must still wonder how a Navy destroyer was unable to avoid the drifting tugboat.