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tex2html_wrap_inline3922   Most proper motions measured this way
tex2html_wrap_inline3922   A large fraction of them using MERLIN
tex2html_wrap_inline3922   Find extragalactic reference in primary beam
tex2html_wrap_inline3922   Measure pulsar position relative to reference
tex2html_wrap_inline3922   More accurate at 1400MHz
tex2html_wrap_inline3922   But pulsars weaker, references harder to find
tex2html_wrap_inline3922   Usually requires 4-5 epochs at 1 year intervals

Jon Bell
Thu Dec 19 15:15:11 GMT 1996