Neil Gehrels Swift Observatory
The Swift satellite observatory is designed to detect gamma-ray bursts which indicate high energy events in the universe. It was launched into a low-Earth orbit on November 20, 2004.
Once the position of the source has been determined, this data can be quickly transmitted to the ground to enable other instruments to be positioned to observe the afterglow of the burst.
The Swift Observatory made important measurements of the 2015 brightening of V404 Cygni, the location of a black hole. It also made important observations of an ultraviolet pulse associated with the neutron star merger detected on August 17, 2017.