List of asteroid close approaches to Earth in 2012 explained

Time of discovery of asteroids which came closer to Earth than the moon in 2019
Other Years
Caption:Years
Below:2010, 2011, 2012, 2013, 2014
List of asteroid close approaches to Earth in 2012 is a listing of asteroids noted for their close approach to planet Earth

Timeline of close approaches less than one lunar distance from Earth in 2012

A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2012.[1]

This list does not include any of the objects that collided with earth in 2012, none of which were discovered in advance, but were recorded by sensors designed to detect detonation of nuclear devices.

Date of
closest
approach		Date
discovered		width=100 Objectwidth=205 data-sort-type="number"Nominal geocentric
distance (AU)[2] 		data-sort-type="number"Size (m)
(approximate)		data-sort-type="number"(H)
(abs. mag)		Closer
approach
to Moon		width=120 Refs[3] [4]
2012-01-02 2011-12-31 0.00156abbr=onNaNabbr=on 6 29.8[5]
2012-01-20 2012-01-18 0.00212abbr=onNaNabbr=on 3 31.0[6] Yes
2012-01-27 2012-01-25 0.000437abbr=onNaNabbr=on 17 27.6[7]
2012-02-20 2012-02-22 0.00073abbr=onNaNabbr=on 15 27.9[8]
2012-03-01 2012-03-02 0.00154abbr=onNaNabbr=on 10 28.8[9]
2012-03-26 2012-03-24 0.00107abbr=onNaNabbr=on 15 27.9[10]
2012-03-26 2012-03-25 0.00043abbr=onNaNabbr=on 5 30.2[11]
2012-04-01 2012-03-13 0.001539abbr=onNaNabbr=on 60 24.3[12]
2012-04-19 2012-04-21 0.00187abbr=onNaNabbr=on 14 28.1[13]
2012-05-13 2012-05-12 2012 JU 0.00135abbr=onNaNabbr=on 13 28.3[14]
2012-05-17 2012-05-16 2012 KA 0.00149abbr=onNaNabbr=on 11 28.6[15]
2012-05-19 2010-05-23 0.00111AU align=center 19–43 align=center 25.7
2012-05-28 2012-05-23 0.00038abbr=onNaNabbr=on 20 26.4[16]
2012-05-29 2012-05-28 0.000139abbr=onNaNabbr=on 9 29.0[17]
2012-06-21 2012-06-23 0.00211abbr=onNaNabbr=on 24 26.9[18] Yes
2012-10-07 2012-10-05 0.0017abbr=onNaNabbr=on 50 25.2[19]
2012-10-09 2012-10-10 0.00061abbr=onNaNabbr=on 28 26.6[20]
2012-10-12 2012-10-04 0.000634abbr=onNaNabbr=on 27 26.7
2012-11-12 2012-11-14 0.00133abbr=onNaNabbr=on 20 27.3[21]
2012-11-14 2012-11-12 0.00151abbr=onNaNabbr=on 11 28.5[22]
2012-12-11 2012-12-09 0.0015abbr=onNaNabbr=on 50 25.4[23]
2012-12-14 2012-12-11 0.00211abbr=onNaNabbr=on 6 29.9[24]
2012-12-15 2012-12-13 0.00184abbr=onNaNabbr=on 16 27.8[25]

Warning Times by Size

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.

Abs Magnitude 30 and greater (size of a person for comparison)Abs Magnitude 29-30Absolute Magnitude 28-29Absolute Magnitude 27-28Absolute Magnitude 26-27Absolute Magnitude 25-26 Absolute Magnitude less than 25 (largest)

Notes

See also

Notes and References

  1. For a list of current Earth close approaches see NEO Earth Close Approaches
  2. Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km.
  3. Web site: JPL Small-Body Database Browser . JPL Solar System Dynamics . NASA Jet Propulsion Laboratory.
  4. Web site: MPC Database . IAU Minor Planet Center . International Astronomical Union . 1 January 2021.
  5. Web site: JPL Small-Body Database Browser: (2011 YB63) . 2012-01-01 last obs.
  6. Web site: JPL Small-Body Database Browser: (2012 BV1) . 2012-01-19 last obs.
  7. Web site: JPL Small-Body Database Browser: (2012 BX34) . 2012-01-27 last obs.
  8. Web site: JPL Small-Body Database Browser: (2012 DY13) . 2012-02-27 last obs.
  9. Web site: JPL Small-Body Database Browser: (2012 EZ1) . 2012-03-03 last obs.
  10. Web site: JPL Small-Body Database Browser: (2012 FP35) . 2012-03-26 last obs.
  11. Web site: JPL Small-Body Database Browser: (2012 FS35) . 2012-03-26 last obs.
  12. Web site: JPL Small-Body Database Browser: (2012 EG5) . https://archive.today/20130403032854/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012EG5;cad=1%23cad . dead . 2013-04-03 . 2012-04-03 last obs.
  13. Web site: JPL Small-Body Database Browser: (2012 HM13) . https://web.archive.org/web/20170407073145/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012HM13;cad=1#cad . dead . 2017-04-07 . 2012-04-23 last obs.
  14. Web site: JPL Small-Body Database Browser: (2012 JU) . https://web.archive.org/web/20170407012249/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012JU;cad=1#cad . dead . 2017-04-07 . 2012-05-13 last obs.
  15. Web site: JPL Small-Body Database Browser: (2012 KA) . 2012-05-17 last obs.
  16. Web site: JPL Small-Body Database Browser: (2012 KP24) . 2012-05-28 last obs.
  17. Web site: JPL Small-Body Database Browser: (2012 KT42) . 2012-05-29 last obs.
  18. Web site: JPL Small-Body Database Browser: (2012 MF7) . 2012-07-22 last obs.
  19. Web site: JPL Small-Body Database Browser: (2012 TV) . 2012-10-07 last obs.
  20. Web site: JPL Small-Body Database Browser: (2012 TM79) . 2012-10-11 last obs.
  21. Web site: JPL Small-Body Database Browser: (2012 VH77) . 2012-11-23 last obs.
  22. Web site: JPL Small-Body Database Browser: (2012 VJ38) . 2012-11-16 last obs.
  23. Web site: JPL Small-Body Database Browser: (2012 XE54) . 2012-12-11 last obs.
  24. Web site: JPL Small-Body Database Browser: (2012 XB112) . 2012-12-14 last obs.
  25. Web site: JPL Small-Body Database Browser: (2012 XL134) . 2012-12-14 last obs.

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