Asteroid 2012 KT42 is a near-Earth object catalogued by NASA under reference ID 3605257. Its estimated diameter is 4–9 m (average 7 m), inferred from brightness rather than measured directly. Its closest catalogued approach to Earth occurs on Tue, May 29, 2012, missing by 20,813 km — 0.05 lunar distances. NASA does not classify it as a potentially hazardous asteroid.
This score ranks how notable the asteroid approach is. It is not an impact prediction.
Closest approach
Size and brightness
Related close approaches
| Date | Orbiting | Miss (km) | Miss (LD) | Velocity (km/s) | Index |
|---|---|---|---|---|---|
| 05/11/54Fri, Nov 5, 1954 | Venus | 9,817,730 | 25.53 | 16.0 | 15 |
| 04/12/54Sat, Dec 4, 1954 | Earth | 1,100,234 | 2.86 | 16.2 | 50 |
| 04/12/54Sat, Dec 4, 1954 | Moon | 736,701 | 1.92 | 15.1 | 51 |
| 27/12/55Tue, Dec 27, 1955 | Mars | 8,099,875 | 21.06 | 10.4 | 13 |
| 30/10/65Sat, Oct 30, 1965 | Earth | 37,898,901 | 98.55 | 10.9 | 13 |
| 18/10/68Fri, Oct 18, 1968 | Venus | 12,100,806 | 31.47 | 17.0 | 16 |
| 19/01/72Wed, Jan 19, 1972 | Venus | 5,942,627 | 15.45 | 12.3 | 23 |
| 27/05/73Sun, May 27, 1973 | Earth | 3,387,578 | 8.81 | 16.6 | 38 |
| 06/09/76Mon, Sep 6, 1976 | Earth | 54,127,668 | 140.75 | 16.1 | 16 |
| 11/12/79Tue, Dec 11, 1979 | Earth | 18,941,539 | 49.25 | 19.7 | 17 |
| 05/05/84Sat, May 5, 1984 | Earth | 71,807,694 | 186.72 | 30.2 | 23 |
| 01/07/87Wed, Jul 1, 1987 | Earth | 37,576,884 | 97.71 | 10.6 | 13 |
| 04/02/89Sat, Feb 4, 1989 | Venus | 14,706,179 | 38.24 | 17.8 | 16 |
| 17/10/90Wed, Oct 17, 1990 | Earth | 44,196,657 | 114.92 | 12.7 | 14 |
| 25/04/92Sat, Apr 25, 1992 | Venus | 12,076,217 | 31.40 | 10.7 | 13 |
| 24/12/93Fri, Dec 24, 1993 | Earth | 61,686,543 | 160.40 | 28.5 | 22 |
| 18/05/98Mon, May 18, 1998 | Earth | 33,317,034 | 86.63 | 22.5 | 19 |
| 11/08/01Sat, Aug 11, 2001 | Earth | 52,353,763 | 136.14 | 15.3 | 15 |
| 28/11/04Sun, Nov 28, 2004 | Earth | 13,422,220 | 34.90 | 13.2 | 14 |
| 29/05/12Tue, May 29, 2012 | Moon | 360,456 | 0.94 | 17.6 | 54 |
| 29/05/12Tue, May 29, 2012 | Earth | 20,813 | 0.05 | 17.0 | 56 |
| 08/07/12Sun, Jul 8, 2012 | Venus | 1,482,625 | 3.86 | 10.0 | 45 |
| 08/06/14Sun, Jun 8, 2014 | Earth | 16,640,631 | 43.27 | 12.7 | 14 |
| 29/06/16Wed, Jun 29, 2016 | Earth | 32,149,124 | 83.60 | 11.4 | 13 |
| 21/07/18Sat, Jul 21, 2018 | Earth | 40,714,099 | 105.87 | 13.2 | 14 |
| 09/08/20Sun, Aug 9, 2020 | Earth | 44,621,434 | 116.03 | 14.4 | 15 |
| 27/08/22Sat, Aug 27, 2022 | Earth | 44,865,571 | 116.66 | 14.5 | 15 |
| 14/09/24Sat, Sep 14, 2024 | Earth | 41,477,836 | 107.85 | 13.5 | 14 |
| 20/08/26Thu, Aug 20, 2026 | Venus | 12,322,464 | 32.04 | 14.3 | 15 |
| 06/10/26Tue, Oct 6, 2026 | Earth | 33,774,141 | 87.82 | 11.7 | 13 |
| 27/10/28Fri, Oct 27, 2028 | Earth | 20,033,543 | 52.09 | 12.1 | 13 |
| 07/11/30Thu, Nov 7, 2030 | Earth | 4,989,595 | 12.97 | 15.0 | 29 |
| 12/11/32Fri, Nov 12, 2032 | Earth | 9,205,522 | 23.94 | 17.7 | 16 |
| 18/11/34Sat, Nov 18, 2034 | Earth | 24,690,350 | 64.20 | 20.8 | 18 |
| 23/11/36Sun, Nov 23, 2036 | Earth | 40,835,319 | 106.18 | 24.1 | 19 |
| 29/11/38Mon, Nov 29, 2038 | Earth | 56,729,084 | 147.51 | 27.3 | 21 |
| 04/12/40Tue, Dec 4, 2040 | Earth | 73,592,017 | 191.36 | 30.8 | 23 |
| 01/12/48Tue, Dec 1, 2048 | Venus | 10,127,240 | 26.33 | 13.4 | 14 |
| 07/01/63Sun, Jan 7, 2063 | Venus | 2,994,737 | 7.79 | 9.4 | 37 |
| 26/09/70Fri, Sep 26, 2070 | Mars | 13,554,360 | 35.25 | 10.5 | 13 |
| 30/01/77Sat, Jan 30, 2077 | Venus | 11,684,921 | 30.38 | 14.0 | 14 |
| 16/06/79Fri, Jun 16, 2079 | Mars | 14,595,442 | 37.95 | 13.2 | 14 |
| 08/05/99Fri, May 8, 2099 | Venus | 4,373,420 | 11.37 | 11.2 | 30 |
| 10/05/15Fri, May 10, 2115 | Earth | 58,594,280 | 152.36 | 27.5 | 21 |
| 18/05/17Tue, May 18, 2117 | Earth | 35,012,872 | 91.04 | 22.8 | 19 |
| 27/05/19Sat, May 27, 2119 | Earth | 11,835,933 | 30.78 | 18.2 | 17 |
| 05/06/21Thu, Jun 5, 2121 | Earth | 10,074,239 | 26.20 | 14.0 | 14 |
| 30/06/23Wed, Jun 30, 2123 | Earth | 31,238,153 | 81.23 | 11.4 | 13 |
| 13/04/25Fri, Apr 13, 2125 | Mars | 6,364,903 | 16.55 | 11.2 | 20 |
| 28/07/25Sat, Jul 28, 2125 | Earth | 41,975,186 | 109.15 | 13.5 | 14 |
| 21/08/27Thu, Aug 21, 2127 | Earth | 45,167,952 | 117.45 | 14.6 | 15 |
| 06/11/33Fri, Nov 6, 2133 | Earth | 9,365,342 | 24.35 | 14.1 | 14 |
| 17/11/35Thu, Nov 17, 2135 | Earth | 14,192,350 | 36.90 | 18.7 | 17 |
| 24/11/37Sun, Nov 24, 2137 | Earth | 37,397,398 | 97.24 | 23.4 | 19 |
| 02/12/39Wed, Dec 2, 2139 | Earth | 60,731,767 | 157.92 | 28.2 | 22 |
| 14/11/47Tue, Nov 14, 2147 | Venus | 1,658,927 | 4.31 | 9.8 | 44 |
| 13/08/51Fri, Aug 13, 2151 | Mars | 8,411,762 | 21.87 | 11.0 | 13 |
Data source
All figures on this page come from NASA's Near Earth Object Web Service, maintained by the Center for Near-Earth Object Studies at JPL. The Orbitfall Index is calculated by Orbitfall from those values — see the methodology and the NASA asteroid tracker overview. For current passes, see asteroids passing Earth today.
Learn about close approaches
Today's catalogued close approaches, ranked.
What counts as a near-Earth object, and today's list.
What a close approach is and how it's measured.
Where the data comes from and how often it updates.
What NASA's PHA label does and doesn't mean.
1 LD = 384,400 km — the yardstick for flybys.
Why a close approach is a schedule, not a warning.
From first detection to orbit refinement.