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Returned Hardware

Magnetometer Multi-Layer Insulation and Side Plate

During the first HST servicing mission the MSS kapton multi-layer insulation (MLI) was removed and replaced. The STS-61 crew noted that the MLI appeared fine at first, although it crumbled when touched.

The magnetometer MLI and side plate underwent thorough testing. These samples were chosen because they are non-optical surfaces. The experimentation was necessary in order to test the theory that the samples were contaminated by UV Earth albedo. The results of the magnetometer MLI and side plate were inconclusive.

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