X-scan results: 4/10/2010 Following period in August / September where few retrievals seemed to show sinusoidal behaviour. Likely alignment problems. Re-aligned on 4/10/2010 and re-disk scanned. 08 - 09 GMT 315: a: 0.020 z: -0.026 400: a: 0.032 z: 0.001 500: a: 0.025 z: 0.020 670: a: 0.021 z: 0.019 870: a: 0.024 z: 0.028 940: a: 0.023 z: 0.022 1020: a: 0.023 z: 0.018