Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 25,975,491 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2004 DA53 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2004 DA53 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.

2004 DA53 orbits the sun every 303 days (0.83 years), coming as close as 0.59 AU and reaching as far as 1.18 AU from the sun. Based on its brightness and the way it reflects light, 2004 DA53 is probably between 0.004 to 0.020 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2004 DA53's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2004 DA53 has 23 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
March 31, 2019 25,975,491 7.316
April 18, 2024 28,010,921 7.348
May 12, 2029 24,480,520 6.870
June 4, 2034 15,173,251 7.749
June 5, 2039 16,364,905 10.987
Feb. 28, 2043 28,105,838 15.033
Feb. 24, 2048 9,740,403 11.265
Feb. 24, 2053 3,099,980 8.773
March 14, 2058 20,248,093 7.030
April 5, 2063 27,193,557 7.398
April 16, 2068 28,280,621 7.385
April 28, 2073 27,604,515 7.236
June 4, 2088 15,146,187 7.771
June 5, 2093 13,366,974 9.360
June 5, 2098 15,790,197 10.871
June 5, 2103 20,396,462 12.311
June 4, 2108 23,021,542 13.043
June 5, 2113 21,943,530 12.774
June 5, 2118 20,772,054 12.457
June 5, 2123 20,808,017 12.451
June 4, 2128 22,008,278 12.766
June 4, 2133 26,301,927 13.811
Feb. 26, 2137 18,740,717 13.172

NASA Sentry has assessed impact risk for 4 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Probability of Impact (%) Impact Energy (Mt)
Feb. 25, 2111 0.00079 0.02298
Feb. 26, 2116 0.00001 0.02294
Feb. 25, 2115 0.00000 0.02291
Feb. 25, 2111 0.00000 0.02318

Images and Observations

2004 DA53's orbit is determined by observations dating back to Feb. 26, 2004. It was last officially observed on Feb. 27, 2004. The IAU Minor Planet Center records 17 observations used to determine its orbit.

Accessibility and Exploration

2004 DA53 can be reached with a journey of 378 days. This trajectory would require a delta-v of 10.602 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 6,637 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2004 DA53.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2004 DA53:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.8835 AU
  • Eccentricity: 0.3303
  • Inclination: 5.14°
  • Longitude of Ascending Node: 336.52°
  • Argument of Periapsis: 50.03°
  • Mean Anomaly: 284.07°

Physical Characteristics

  • Diameter: ~0.012 km
  • Magnitude: 28.0

Derived Characteristics

  • Orbit Period: 303 days (0.83 years)
  • Avg. Orbit Speed: 31.72 km/s
  • Aphelion Distance: 1.18 AU
  • Perihelion Distance: 0.59 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2004 DA53 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.