
Sorry folks, I should have done this, and meant to just after i hit the 
send key...

Orbital Elements of Comet 1977VII (from Dance files)

p(au)          3.424346
e              0.151899
i              1.0988
cap_omega(0) 243.5652
W(0)         231.1607
epoch       1977.04110

Also, perihelions of Gehrels3 were:

April  1973     83 jupiter radii
August 1970     ~3 jupiter radii

Hope this helps...I'm even less of an orbital mechanic than I am an artist.