cometary elements from MPC (or not)

Lawrence Harris Oct 21 8:08 AM

I was hoping to do some astrometry of comet Boattini tonight. From Guide I get
the name: Boattini (c/2007 W1).
I enter the name, followed by a large number of variations, into the MPC
ephemeris generator - but no. Empty files each time.

Can anyone remind me how MPC want the name to be presented.....?

TIA

Lawrence Harris