History of Time transfer

	Revision 5 . . December 10, 2001 3:53 am by The Anome [copyedit, mentioned pulsars]
	Revision 4 . . November 1, 2001 2:03 am by (logged).203.83.xxx [IERS points to UTC article...]

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Difference (from prior major revision) (no other diffs)

Changed: 1c1

Time transfer describes methods for transferring reference clock synchronization from one point to another, often over long distances. Radio-based navigation systems are frequently used as time transfer systems.

Time transfer describes methods for transferring reference clock synchronization from one point to another, often over long distances. Radio-based navigation systems are frequently used as time transfer systems.

Added: 4a5,6

In particular time synchronization has been accomplished by using pairs of [radio telescopes]? to listen to a pulsar, with the time transfer accomplished by comparing time offsets of the received pulsar signal.

Changed: 9c11

* Atomic clocks

* Atomic clocks