admin Set to launch in 2021 and supposed to fly by Eurybates in 2027. The finding through the images taken by Hubble Space Telescope taken in September 2018, December 2019, and January 2020 confirm that there is a mini satellite revolving around Eurybates. This opportunity is said to be a “bonus” space exploration opportunity.
Eurybates is a part of Trojan Asteroids encircling sun in Jupiter’s orbit as they are ‘leading’ and ‘trailing’ behind Jupiter.
Hal Levison, the principal investigator of the mission from the Southwest Research Institute said, “This newly discovered satellite is more than 6,000 times fainter than Eurybates, implying a diameter less than 1 km. If this estimate proves to be correct, it will be among the smallest asteroids visited.”
The orbits of Earth and Eurybates makes it difficult to observe Eurybates. Further, Hubble cannot point toward the sun, it makes things more complicated. Any future observations are on hold till June when it will be possible again.
Till then, the scientists are going to study the already available data to find the best time to observe the satellite.
The Lucy Program Scientist at NASA Headquarters in Washington, Thomas Statler said, “There are only a handful of known Trojan asteroids with satellites, and the presence of a satellite is particularly interesting for Eurybates. It’s the largest member of the only confirmed Trojan collisional family – roughly 100 asteroids all traceable to, and probably fragments from, the same collision.”
This in no way will affect the scheduled departure of the Spacecraft. Though scientists surely need to make it possible the spacecraft manages to send back every possible information available from the satellite meanwhile not hindering the original plan of its Space flight pass Eurybates.
Magazine 
