Vigoride

Vigoride is a space tug developed and operated by Momentus Space.^[1] The total payload capacity that it can support to LEO is 750 kg.^[2][3] Vigoride is capable of changing orbital planes, inclination, and propelling spacecraft to up to 2 km/s. It also provides small satellite operators access to power, communications, and station keeping while with the tug.^[1] Momentus states that the cost is roughly $15,000 per kg depending on the exact customer specifications.^[4] Vigoride uses a microwave electrothermal thruster (MET) and water as the propellant. In 2019, the first test of the MET in space was completed and was deemed a success in a press release,^[5] while the U.S. Securities and Exchange Commission accused it of misleading investors.^[6] The maiden launch was originally scheduled for January 2021, but was delayed due to Momentus not being able to receive FAA approval before the launch.^[7] On 22 March 2021, a Vigoride mock-up named Vigoride SC was launched in place of a functional Vigoride. In October 2020, the company stated that it had already booked 1.5 Vigorides out of the 3 planned to be launched in December 2021.^[8] On 25 May 2022, Momentus launched its first Vigoride spacecraft aboard SpaceX Transporter 5 mission.^[9]