Back كويكب OK 2019 Arabic 2019 OK German 2019 OK French 2019 OK Japanese 2019 OK Korean 2019 OK Lithuanian 2019 OK Portuguese 2019 OK Russian 2019 OK Ukrainian 2019 OK Chinese
 2019 OK orbits near the ecliptic plane out to the asteroid belt and inside the orbit of Venus | |
| Discovery[1] | |
|---|---|
| Discovered by | SONEAR Obs. |
| Discovery site | SONEAR Obs. (Y00) |
| Discovery date | 24 July 2019 |
| Designations | |
| 2019 OK | |
| NEOCP S511618[2] | |
| Apollo · NEO | |
| Orbital characteristics[3] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 2.42 years |
| Earliest precovery date | 2017-02-21 (Pan-STARRS) |
| Aphelion | 3.4315 AU |
| Perihelion | 0.4635 AU |
| 1.9475 AU | |
| Eccentricity | 0.7620 |
| 2.72 yr (993 d) | |
| 310.58° | |
| 0° 21m 45.36s / day | |
| Inclination | 1.4006° |
| 302.27° | |
| 104.24° | |
| Earth MOID | 0.00036 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.
- ^ a b Cite error: The named reference
MPC-objectwas invoked but never defined (see the help page). - ^ Cite error: The named reference
Graywas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
jpldatawas invoked but never defined (see the help page). - ^ 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.
- ^ Mannix, Liam. "Earth had a near-miss with a 'city-killer' asteroid". stuff.co.nz. Retrieved 26 July 2019.
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