The University of Canterbury is leading a research collaboration to track Moon-orbiting spacecraft, with assistance from
NASA’s CAPSTONE mission.
The Ministry of Business, Innovation and Employment (MBIE) has signed an agreement with NASA that has enabled a
collaboration between the NASA CAPSTONE mission team and a University of Canterbury-led research team.
The University of Canterbury-led research team aims to help validate a research approach to create cislunar space
situational awareness capability – which is a way of tracking spacecraft orbiting the Moon or between high Earth orbit
and the Moon. This tracking will be increasingly important as more countries and private actors send spacecraft to the
Moon.
The research team is led by University of Canterbury Electrical and Computer Engineering academic Associate Professor
Stephen Weddell.
“At the most basic level, we are spotting space junk. No-one wants their lunar mission to be hit by space debris
travelling faster than a speeding bullet in low Earth orbit. In a collision it could cause significant damage to a
satellite and other spacecraft,” he says.
“Our method is based on photometry and employs specialised instrumentation, such as adaptive optics, to explore the
extent to which we can use the natural properties of light and maximise the capability of our optical telescope at the
University of Canterbury Mount John Observatory near Lake Tekapo, New Zealand.”
Associate Professor Weddell is already conducting some preliminary cislunar observations related to CAPSTONE at the
University of Canterbury Mount John Observatory.
The UC-led research team, which includes academics from the universities of Auckland and New South Wales, will attempt
to track the spacecraft from the University of Canterbury Mt John Observatory near Tekapo and the UNSW observatory in
Canberra, Australia.
“An installation in Canberra will also be used for trans-lunar photometry. The Auckland team will employ predictive
models to translate data provided by NASA into sets of coordinates to enable precise ‘pointing’ of our instrumentation,”
Associate Professor Weddell says.
The scientists intend to validate their observations and algorithms to predict spacecraft trajectories enroute to the
Moon and within lunar orbits against NASA’s CAPSTONE mission data.
Multiple lunar missions are already planned to launch, starting this year. Cislunar space situational awareness also
connects to the principles of the Artemis Accords which New Zealand signed last year, particularly regarding
deconfliction of space activities and mitigation of orbital debris around the Moon.
New Zealand’s space sector is worth over $1.7 billion with a space manufacturing industry that generates around $247
million per annum in revenue.
Space debris, or space junk, consists of discarded launch vehicles or parts of a spacecraft that float around in space
hundreds of kilometres above the Earth.
A Rocket Lab Electron rocket will launch the CAPSTONE mission. The launch date is currently targeted for June 25, 2022
(UTC). Check here to watch the live coverage (if available).