1. N. Johnson, E. Christiansen, R. Reynolds, M. Matney, J.C. Zhang, P. Eichler and A. Jackson, Proc. 2nd European Conference on Space Debris, ESA SP-393 (1997) 225.

4. N. L. Johnson et al., History of On-orbit Satellite Fragmentations (11th Edition), NASA JSC 28383, (1998).

6. P. E. Nebolisine et al., Physical Science Inc. (PSI) Report TR-399, (1983).

7. D. S. McKnight et al., Kaman Science Corp. Report, NASA contract No. NAS 9-19215 (SOCIT report), (1995).

A CCD search for the Earth-Moon libration clouds around L4

S. Takahashia M. Ishiguroa, Y. Fujiia, S. Urakawaa, C. Yoshishitaa, T. Mukaia and R. Nakamurab aGraduate School of Science and Technology, Kobe University, Japan bEarth Observing Research Center, National Space Development Agency of Japan

We attempted to detect the Earth-Moon libration clouds around L4 with a cooled CCD camera at Mauna Kea (4200m), Hawaii, on November 17 and 18, 1999. No significant enhancement of brightness larger than 1.5Sio© was found around L4. It seems that the brightness of the libration clouds in 1999, if it existed, would be fainter than that reported previously by Kordylewski [1] and Roach [2].

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