2012 LZ1

2012 LZ1
Radar image of 2012 LZ1 by the Arecibo Observatory in 2012
Discovery[1]
Discovered byRobert H. McNaught
Discovery siteSiding Spring Survey
Discovery date10 June 2012
Designations
2012 LZ1
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 2
Aphelion4.0667 AU (608.37 Gm) (Q)
Perihelion1.0492 AU (156.96 Gm) (q)
2.5579 AU (382.66 Gm) (a)
Eccentricity0.58984 (e)
4.09 yr (1494.3 d)
312.53° (M)
0° 14m 27.312s / day (n)
Inclination26.102° (i)
264.53° (Ω)
14.241° (ω)
Earth MOID0.043164 AU (6.4572 Gm)
Jupiter MOID1.1348 AU (169.76 Gm)
Physical characteristics
Dimensions~1 km[3]
12.87 h (0.536 d)
10–15 hr[3]
0.02–0.04[3]
19.9[2]

2012 LZ1 is an asteroid classified as near-Earth object and potentially hazardous asteroid of the Amor group, approximately 1 km (0.62 mi) in diameter.[4] It passed within 5.4 million kilometers (14 lunar distances) of Earth on 14 June 2012.[4] It was discovered during the night of 10–11 June 2012 by astronomer Robert H. McNaught and his colleagues using the 0.5-meter Uppsala Southern Schmidt Telescope at the Siding Spring Observatory in Australia, just four days before its closest approach to Earth.[5][6]

  1. ^ Cite error: The named reference MPEC2012-L30 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference usra was invoked but never defined (see the help page).
  4. ^ a b "Humongous asteroid to hurtle past Earth Thursday". The Christian Science Monitor. 14 June 2012. Retrieved 14 June 2012.
  5. ^ "Huge Asteroid to Fly by Earth Thursday: How to Watch Online". Space.com. 13 June 2012. Retrieved 14 June 2012.
  6. ^ Wall, Mike (20 May 2012). "Huge asteroid to fly by Earth Thursday – Technology & science – Space – Space.com". NBC News. Retrieved 14 June 2012.[dead link]