LDEF (Postflight), S0001 : Space Debris Impact Experiment, Tray H05 The Space Debris Impact Experiment consists of a three sixteenth (3/16) inch thick chromic anodized aluminum panel mounted in a three (3) inch deep LDEF experiment tray. The side of the plate exposed to the LDEF interior is painted with Chemglaze Z-306 flat black paint over a Chemglaze 9924 wash primer. The panels are attached to the aluminum tray structure with non-magnetic stainless steel fasteners. The panel coatings, a thin layer of chromic anodize facing out and the Chemglaze Z-306 black paint facing the LDEF inte rior, contribute significantly to thermal control of the LDEF spacecraft. The post landing photograph was taken from the Orbiter's cargo bay access hatch during post landing operations to prepare the Orbiter for the ferry flight from the Dryden Flight Research Center to the Kennedy Space Center. The color of the paint dots on the experiment tray clamp blocks, originally white, show a tan stain that gets darker near the venting area of the end thermal panels. The stain also covers the top and left experiment tray flanges and to a lesser degree, the lower and right tray flanges. The discolorations on the tray sidewalls appear to be fingerprints enhanced by the brown stain. Light colored discolorations are located near the left side of the debris panel. The vertical lines and the pinkish tint of the debris panel are chromic anodize coat ing by-products and not attributed to contamination and/or exposure to the space environment. Darker discolorations on the debris panel, similar to water marks, are apparent in the photo graph.
