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2017 VW13

2017 VW13 is an Apollo near-Earth asteroid roughly 250 meters (820 feet) in diameter. It was discovered on 13 November 2017 when the asteroid was about 0.069 AU (10,300,000 km; 6,400,000 mi) from Earth and had a solar elongation of 110 degrees. Ten days earlier, on 3 November 2017, the asteroid had passed 0.02818 AU (4,216,000 km; 2,619,000 mi) from Earth,[2] but only had a solar elongation of 65 degrees.

2017 VW13
Discovery[1]
Discovered byATLAS-MLO
Discovery date13 November 2017
Designations
MPC designation2017 VW13
Apollo, NEO[2]
Orbital characteristics[2]
Epoch 2018-Mar-23 (JD 2458200.5)
Uncertainty parameter 4
Observation arc111 days
Aphelion3.3707 AU (Q)
Perihelion0.96118 AU (q)
2.1659 AU (a)
Eccentricity0.556231
3.19 yr
47.813° (M)
Inclination11.4909°
45.705° (Ω)
337.12° (ω)
Earth MOID0.002 AU (300,000 km)
Physical characteristics
Dimensions~250 m (820 ft) (assumed)[a]
20.7[2]

Contents

2001 Earth approachEdit

Calculating the orbit backwards it is known that the asteroid made a close approach to Earth on 8 November 2001.[2] The nominal (best-fit) solution shows that the asteroid passed about 0.001 AU (150,000 km; 93,000 mi) from Earth. But due to the uncertainties in the trajectory, the asteroid could have passed as far as 0.008 AU (1,200,000 km; 740,000 mi) from Earth. As the observation arc becomes longer the precise distance of the 2001 approach will become better constrained.

Generic size comparison of other large asteroids that passed less than 0.5 LD from Earth
Asteroid Absolute
magnitude
(H)
Generic diameter
estimate assuming
albedo = 0.15[3]
2017 VW13 20.7 250 meters
2002 MN 23.6 66 meters
2018 GE3 23.8 60 meters

NotesEdit

  1. ^ Diameter estimate based on an absolute magnitude (H) of 20.7 and an assumed albedo of 0.15.

ReferencesEdit

  1. ^ "MPEC 2017-W10 : 2017 VW13". IAU Minor Planet Center. 2017-11-16. Retrieved 2018-04-18. (K17V13W)
  2. ^ a b c d e "JPL Small-Body Database Browser: (2017 VW13)" (last observation: 2018-03-04). Jet Propulsion Laboratory. Retrieved 2018-04-18.
  3. ^ "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 2018-04-18.

External linksEdit