154275 (2002 SR41)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 154275 (2002 SR41)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 21,790,210 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

154275 (2002 SR41) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2002 SR41 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2002 SR41 orbits the sun every 412 days (1.13 years), coming as close as 0.55 AU and reaching as far as 1.62 AU from the sun. Based on its brightness and the way it reflects light, 2002 SR41 is probably between 0.250 to 0.560 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to a football field.

The rotation of 2002 SR41 has been observed. It completes a rotation on its axis every 2.28 hours.

Close Approaches

2002 SR41's orbit is 0.04 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2002 SR41 has 22 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 14, 2023 21,790,210 19.964
Nov. 1, 2046 15,630,662 16.910
June 2, 2049 22,952,834 12.031
Nov. 11, 2055 24,910,732 12.380
June 9, 2058 6,063,317 16.463
Oct. 30, 2081 16,802,591 17.535
June 1, 2084 25,228,049 11.632
Nov. 10, 2090 24,031,982 12.544
June 8, 2093 5,861,149 16.301
Oct. 28, 2116 22,445,214 19.257
Nov. 6, 2125 15,955,832 14.749
June 5, 2128 12,916,955 13.910
June 12, 2137 10,372,308 17.575
Oct. 26, 2160 28,108,576 20.630
Nov. 1, 2169 16,019,261 17.327
June 2, 2172 27,968,235 11.181
Nov. 6, 2178 15,669,000 14.793
June 5, 2181 15,616,363 13.383
Nov. 11, 2187 22,279,944 12.860
June 8, 2190 7,740,158 15.139
Nov. 14, 2196 28,217,886 11.647
June 11, 2199 6,425,532 16.282

Images and Observations

2002 SR41's orbit is determined by observations dating back to Sept. 30, 2002. It was last officially observed on July 8, 2023. The IAU Minor Planet Center records 486 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 2002 SR41:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.084 AU
  • Eccentricity: 0.4907
  • Inclination: 11.58°
  • Longitude of Ascending Node: 247.77°
  • Argument of Periapsis: 258.2°
  • Mean Anomaly: 130.23°

Physical Characteristics

  • Diameter: ~0.323 km
  • Magnitude: 20.13

Derived Characteristics

  • Orbit Period: 412 days (1.13 years)
  • Avg. Orbit Speed: 28.62 km/s
  • Aphelion Distance: 1.62 AU
  • Perihelion Distance: 0.55 AU
  • Rotation Period: 2.28 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 154275 (2002 SR41) 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.

Size Rendering

The below comparison is an artistic rendering that uses available data on the diameter of 2002 SR41 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.