2019 OK

2019 OK
2019 OK orbits near the ecliptic plane out to the asteroid belt and inside the orbit of Venus
Discovery [1]
Discovered bySONEAR Obs.
Discovery siteSONEAR Obs. (Y00)
Discovery date24 July 2019
Designations
2019 OK
NEOCP S511618[2]
Apollo · NEO
Orbital characteristics[3]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 1
Observation arc2.42 years
Earliest precovery date2017-02-21 (Pan-STARRS)
Aphelion3.4315 AU
Perihelion0.4635 AU
1.9475 AU
Eccentricity0.7620
2.72 yr (993 d)
310.58°
0° 21m 45.36s / day
Inclination1.4006°
302.27°
104.24°
Earth MOID0.00036 AU (54,000 km) (0.14 LD)
Physical characteristics
57–130 m (187–426 ft)
23.3±0.3[3]
23.3[1]

2019 OK[a] is a near-Earth asteroid noted for its sudden, surprise discovery on the day before it flew by at approximately 70,000 km (43,000 mi) in 2019.[4] The object's size is estimated at 57 to 130 metres (187 to 426 ft) across, the closest asteroid of such size discovered in 2019.[5] It is uncommon for asteroids of this moderately large size to pass within 100,000 km (62,000 mi) of Earth.

  1. ^ a b Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Gray was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference jpldata was invoked but never defined (see the help page).
  4. ^ Vergano, Dan; Leopold, Jason (19 September 2019). "A "Sneaky" Asteroid Narrowly Missed Earth This Summer. Internal Emails Show How NASA Scientists Totally Missed It. - "This one did sneak up on us," one NASA expert wrote in an internal email, two days after the football-field-sized asteroid narrowly missed the planet". BuzzFeed News. Retrieved 20 September 2019.
  5. ^ Mannix, Liam. "Earth had a near-miss with a 'city-killer' asteroid". stuff.co.nz. Retrieved 26 July 2019.


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