About: http://webisa.webdatacommons.org/434896532

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	However, one of the conditions for determining the position of the observation point P is that the positions of the satellites are determined at the time T0 when the signal is generated.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com