Collection time: 1820Z to 1855Z

Weather: T: -22C, RH: ~70% (instrument out of service), wind: 5 kn at 133, Sky conditions: Broken cirrus, with stratus several kilometers away in all directions, -SN

Where collected: on top of dewar in front of MSF

Description: columns, needles, simple prisms

Other comments: Photos 58-76 are windward of shield, 79-97 are downwind.