LIST OF ASTEROIDS/40401–40500

|-
| 40401 - || || July 14, 1999 || Socorro || LINEAR
|-
| 40402 - || || July 14, 1999 || Socorro || LINEAR
|-
| 40403 - || || July 12, 1999 || Socorro || LINEAR
|-
| 40404 - || 1999 OB || July 16, 1999 || Višnjan Observatory || K. Korlević
|-
| 40405 - || 1999 OU || July 17, 1999 || Bergisch Gladbach || W. Bickel
|-
| 40406 - || || July 16, 1999 || Socorro || LINEAR
|-
| 40407 - || || August 31, 1999 || Oohira || T. Urata
|-
| 40408 - || || September 4, 1999 || Catalina || CSS
|-
| 40409 Taichikato || || September 6, 1999 || Ceccano || G. Masi
|-
| 40410 Příhoda || || September 4, 1999 || Ondřejov || L. Šarounová
|-
| 40411 - || || September 6, 1999 || Gekko || T. Kagawa
|-
| 40412 - || || September 4, 1999 || Kitt Peak || Spacewatch
|-
| 40413 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40414 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40415 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40416 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40417 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40418 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40419 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40420 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40421 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40422 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40423 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40424 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40425 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40426 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40427 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40428 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40429 - || || September 7, 1999 || Višnjan Observatory || K. Korlević
|-
| 40430 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40431 - || || September 8, 1999 || Socorro || LINEAR
|-
| 40432 - || || September 8, 1999 || Socorro || LINEAR
|-
| 40433 - || || September 8, 1999 || Socorro || LINEAR
|-
| 40434 - || || September 9, 1999 || Višnjan Observatory || K. Korlević
|-
| 40435 - || || September 9, 1999 || Višnjan Observatory || K. Korlević
|-
| 40436 Sylviecoyaud || || September 10, 1999 || Campo Catino || Campo Catino
|-
| 40437 - || || September 6, 1999 || Farpoint || G. Bell, G. Hug
|-
| 40438 - || || September 6, 1999 || Farpoint || G. Bell, G. Hug
|-
| 40439 - || || September 9, 1999 || Višnjan Observatory || K. Korlević
|-
| 40440 Dobrovský || || September 11, 1999 || Ondřejov || P. Pravec, P. Kušnirák
|-
| 40441 Jungmann || || September 11, 1999 || Ondřejov || P. Pravec, P. Kušnirák
|-
| 40442 - || || September 11, 1999 || Višnjan Observatory || K. Korlević
|-
| 40443 - || || September 7, 1999 || Uccle || E. W. Elst
|-
| 40444 Palacký || || September 12, 1999 || Ondřejov || P. Pravec, M. Wolf
|-
| 40445 - || || September 12, 1999 || Prescott || P. G. Comba
|-
| 40446 - || || September 12, 1999 || Črni Vrh || Črni Vrh
|-
| 40447 - || || September 11, 1999 || Bologna || Osservatorio San Vittore
|-
| 40448 - || || September 12, 1999 || Višnjan Observatory || K. Korlević
|-
| 40449 - || || September 12, 1999 || Višnjan Observatory || K. Korlević
|-
| 40450 - || || September 12, 1999 || Višnjan Observatory || K. Korlević
|-
| 40451 - || || September 13, 1999 || Višnjan Observatory || K. Korlević
|-
| 40452 - || || September 12, 1999 || Reedy Creek || J. Broughton
|-
| 40453 - || || September 13, 1999 || Reedy Creek || J. Broughton
|-
| 40454 - || || September 12, 1999 || Catalina || CSS
|-
| 40455 - || || September 12, 1999 || Catalina || CSS
|-
| 40456 - || || September 13, 1999 || Višnjan Observatory || K. Korlević
|-
| 40457 Williamkuhn || || September 4, 1999 || OCA-Anza || M. Collins, M. White
|-
| 40458 - || || September 14, 1999 || Višnjan Observatory || K. Korlević
|-
| 40459 Rektorys || || September 14, 1999 || Ondřejov || P. Pravec, P. Kušnirák
|-
| 40460 - || || September 15, 1999 || Višnjan Observatory || K. Korlević
|-
| 40461 - || || September 15, 1999 || Višnjan Observatory || K. Korlević
|-
| 40462 - || || September 15, 1999 || Višnjan Observatory || Višnjan Observatory
|-
| 40463 - || || September 15, 1999 || Calgary || G. W. Billings
|-
| 40464 - || || September 8, 1999 || Socorro || LINEAR
|-
| 40465 - || || September 14, 1999 || Višnjan Observatory || K. Korlević
|-
| 40466 - || || September 14, 1999 || Črni Vrh || Črni Vrh
|-
| 40467 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40468 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40469 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40470 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40471 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40472 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40473 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40474 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40475 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40476 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40477 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40478 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40479 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40480 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40481 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40482 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40483 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40484 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40485 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40486 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40487 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40488 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40489 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40490 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40491 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40492 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40493 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40494 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40495 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40496 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40497 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40498 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40499 - || || September 7, 1999 || Socorro || LINEAR
|-
| 40500 - || || September 7, 1999 || Socorro || LINEAR
|-