(152704) 1998 SD4
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(152704) 1998 SD4 is a Mars-crossing minor planet. It was discovered through the Beijing Schmidt CCD Asteroid Program at the Xinglong Station in the Chinese province of Hebei on September 17, 1998.
- "JPL Small-Body Database Browser - 152704 (1998 SD4)". JPL Small-Body Database. NASA. Retrieved November 11, 2011.
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