 A followup study, reported on 6 April 2020, observed only a single object, and noted that the fragment component had now disappeared.Later analysis of the event showed the ejected dust and fragments have a combined mass of about 0.1% of total mass of nucleus, making event a large outburst rather than fragmentation.The higher hyperbolic excess velocity of 2I/Borisov of makes it even harder to reach for a spacecraft than 1I/'Oumuamua ().