BepiColombo Successfully Begins Its Final Descent To Mercury

BepiColombo successfully separated from its propulsion stage on September 3rd, marking the beginning of its final descent to Mercury. The separation was carried out using pyrotechnics, and the craft engaged springs to push the Mercury Transfer Module (MTM) away from the rest of the module. The separation was confirmed by a slightly modified radio signal showing a Doppler shift between the MTM and the rest of the craft. The MTM, which served as the propulsion system for the mission, successfully ferried BepiColombo over billions of kilometers, firing in between flybys to slow the spacecraft down or adjust its angle. The MTM's job is done, and the part of the craft that will continue the journey was up and running, having deployed its systems and begun generating power with its own solar arrays.

• The mission is a collaboration between ESA and JAXA.
• The Mercury Planetary Orbiter (MPO) will take over mission control for the next phase of operations.
• The MPO will perform an orbital insertion maneuver on the 21st, followed by a separation from the Mercury Magnetospheric Orbiter (Mio) on December 9-10.
• The combined craft will provide data on how an airless rock is buffeted by the Sun’s intense radiation and magnetic storms.

The successful separation was only the first stage in BepiColombo’s final approach. The next step happens in November when the combined craft performs an orbital insertion maneuver on the 21st. A few weeks later, Mio and MPO will finally separate from one another on December 9-10, beginning their journey to their separate orbital paths. Science operations are planned to begin in April. The mission has been successful and handling the scorching heat of Mercury’s orbit, as well as all the chaotic space weather the Sun can throw at it.

AI-generated summary of the original article — see the source for the full story.