Collection time: 1419 to 1511z on 3/18 was unsuccessful.
 Collection 15:15 to 15:29z was successful.

Weather: T:-18 C, RH: 81%, wind: 17 knots at 217 Sky conditions: OVC020, mixed phase layer overhead

Where collected: Initial collection in undisturbed, representative 
airstream (6 m NW of MSF) failed to capture particles.  Second attempt in lee 
of MSF (to NE), amid spindrift from building was successful, but
less likely to representative general Summit conditions.

Description:  Sectored plates, hexagonal plates and triangular forms

Other comments: Photos 0093-0114 are from upwind of the t-block, 
photos 0117-0132 are from downwind of the t-block.