About: http://webisa.webdatacommons.org/270585038

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	So typically you have to measure at least two of the following quantities: energy, rate of energy loss (rate of slowing down), velocity, or rigidity (which is a measure of how much the particle bends in a magnetic field).
http://www.w3.org/ns/prov#wasQuotedFrom	nasa.gov