Key Facts

Overview

1998 DK36 is a very small asteroid with an orbit that is entirely confined within Earth's orbit. NASA JPL has classified 1998 DK36 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

1998 DK36 orbits the sun every 210 days (0.58 years), coming as close as 0.40 AU and reaching as far as 0.98 AU from the sun. Based on its brightness and the way it reflects light, 1998 DK36 is probably between 0.027 to 0.059 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

1998 DK36's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

NASA Sentry has assessed impact risk for 17 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Distance from Earth (km) Distance Error (km) Probability of Impact (%) Impact Energy (Mt)
Feb. 20, 2064 137,792.46 ±84,198.30 0.00005 1.01
Feb. 20, 2095 148,032.36 ±84,853.14 0.00000 1.009
Feb. 19, 2082 142,511.16 ±83,691.12 0.00000 1.008
Feb. 19, 2074 532,006.14 ±201,241.32 0.00000 1.051
Feb. 21, 2081 315,934.62 ±3,381,991.80 0.00000 0.9985
Feb. 18, 2057 352,766.16 ±105,467.76 0.00000 1.004
Feb. 20, 2072 754,356.42 ±247,882.62 0.00000 1.097
Feb. 20, 2089 458,079.84 ±145,708.32 0.00000 1.036
Feb. 19, 2095 165,565.38 ±44,735.20 0.00000 1.008
Feb. 21, 2093 277,363.26 ±98,829.48 0.00000 1.064
Feb. 20, 2080 774,271.26 ±248,691.54 0.00000 1.358
Feb. 17, 2030 445,342.56 ±250,790.88 0.00000 0.9888
Feb. 20, 2060 836,570.94 ±223,422.42 0.00000 1.169
Feb. 22, 2093 143,724.54 ±77,560.02 0.00000 1.388
Feb. 19, 2027 748,276.68 ±173,648.16 0.00000 1.461
Feb. 20, 2074 389,064.84 ±112,459.14 0.00000 1.005
Feb. 21, 2100 560,074.38 ±149,489.70 0.00000 1.007

Images and Observations

1998 DK36's orbit is determined by observations dating back to Feb. 23, 1998. It was last officially observed on Feb. 24, 1998. The IAU Minor Planet Center records 4 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 1998 DK36:

References

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Orbital Elements

  • Epoch: 2450868.5 JD
  • Semi-major axis: 0.692257232849 AU
  • Eccentricity: 0.416016538906
  • Inclination: 2.01752027758°
  • Longitude of Ascending Node: 151.461719963°
  • Argument of Periapsis: 180.042707278°
  • Mean Anomaly: 183.252227944°

Physical Characteristics

  • Diameter: ~0.034 km
  • Magnitude: 25.0

Derived Characteristics

  • Orbit Period: 210 days (0.58 years)
  • Avg. Orbit Speed: 35.80 km/s
  • Aphelion Distance: 0.98 AU
  • Perihelion Distance: 0.40 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 1998 DK36 is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.