List of asteroids/40301–40400

|| May 12, 1999 || Socorro || LINEAR
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40303 - || || May 13, 1999 || Socorro || LINEAR
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40306 - || || May 13, 1999 || Socorro || LINEAR
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40309 - || || May 18, 1999 || Socorro || LINEAR
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40312 - || || May 16, 1999 || La Silla || A. C. Delsanti, O. R. Hainaut
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40315 - || 1999 LS || June 4, 1999 || Socorro || LINEAR
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40316 - || || June 8, 1999 || Socorro || LINEAR
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40319 - || || June 9, 1999 || Socorro || LINEAR
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40322 - || || June 12, 1999 || Kitt Peak || Spacewatch
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40325 - || || June 17, 1999 || Farpoint || G. Hug, G. Bell
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40332 - || 1999 NK || July 6, 1999 || Reedy Creek || J. Broughton
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40333 - || || July 15, 1999 || Višnjan Observatory || K. Korlević
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40336 - || || July 13, 1999 || Socorro || LINEAR
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40339 - || || July 13, 1999 || Socorro || LINEAR
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40342 - || || July 13, 1999 || Socorro || LINEAR
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40345 - || || July 13, 1999 || Socorro || LINEAR
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40348 - || || July 13, 1999 || Socorro || LINEAR
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40351 - || || July 14, 1999 || Socorro || LINEAR
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40354 - || || July 14, 1999 || Socorro || LINEAR
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40357 - || || July 14, 1999 || Socorro || LINEAR
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40360 - || || July 14, 1999 || Socorro || LINEAR
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40363 - || || July 14, 1999 || Socorro || LINEAR
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40366 - || || July 14, 1999 || Socorro || LINEAR
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40369 - || || July 14, 1999 || Socorro || LINEAR
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40372 - || || July 14, 1999 || Socorro || LINEAR
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40375 - || || July 14, 1999 || Socorro || LINEAR
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40378 - || || July 14, 1999 || Socorro || LINEAR
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40381 - || || July 13, 1999 || Socorro || LINEAR
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40384 - || || July 13, 1999 || Socorro || LINEAR
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40387 - || || July 13, 1999 || Socorro || LINEAR
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40390 - || || July 12, 1999 || Socorro || LINEAR
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40393 - || || July 12, 1999 || Socorro || LINEAR
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40396 - || || July 13, 1999 || Socorro || LINEAR
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40399 - ||