First cold tests (27May - 31May) of the engineering grade chip were successful!

One dead channel on engineering array.

Sensitive for all filters, sensitivity not yet quantified.

Problem discovered: system/detector noise being higher than backgound noise.

Stray radiation in dewar detected, limiting ability to test and quantify system characteristics

Temperature control of detector worked very well in range 6 to 11 deg K

Second Cold Test scheduled for 7 -12 June 98

Science grade detector due 1 July 98, installation and testing to follow.

Project review and summit commissioning anticipated for late summer 98

LWS Image of Test Aperture at 11.7 microns, 30May98