Key Facts

  • Classified as a Aten-class Asteroid
  • Comparable in size to Mount Everest (2.30 km diameter)
  • Will pass within 26,886,611 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

Ra-Shalom is a small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified Ra-Shalom 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.

Ra-Shalom orbits the sun every 277 days (0.76 years), coming as close as 0.47 AU and reaching as far as 1.20 AU from the sun. Ra-Shalom is about 2.3 kilometers in diameter, making it larger than most asteroids, comparable in size to Mount Everest.

The rotation of Ra-Shalom has been observed. It completes a rotation on its axis every 19.80 days.

Ra-Shalom's spectral type C (Tholen) / Xc (SMASSII) indicates that it is likely to contain platinum, nickel, iron, and cobalt.

Close Approaches

Ra-Shalom's orbit is 0.15 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

Ra-Shalom has 39 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 21, 2019 26,886,611 11.343
Aug. 31, 2022 28,024,370 11.348
Aug. 12, 2025 25,866,403 12.225
Oct. 15, 2035 28,514,584 15.211
Oct. 5, 2038 23,235,917 11.646
Sept. 15, 2041 27,879,060 11.343
Aug. 25, 2044 27,272,665 11.381
Aug. 10, 2047 26,917,494 13.181
Oct. 13, 2057 24,617,446 13.763
Sept. 29, 2060 24,734,521 11.421
Sept. 10, 2063 28,318,119 11.338
Aug. 20, 2066 26,331,895 11.522
Aug. 8, 2069 29,720,585 14.501
Oct. 12, 2079 22,765,063 12.614
Sept. 24, 2082 26,274,011 11.359
Sept. 3, 2085 28,202,680 11.328
Aug. 15, 2088 25,688,070 11.895
Oct. 9, 2101 22,830,916 11.883
Sept. 19, 2104 27,444,014 11.354
Aug. 30, 2107 27,599,114 11.337
Aug. 12, 2110 25,960,964 12.633
Oct. 15, 2120 26,659,463 14.523
Oct. 4, 2123 24,042,014 11.502
Sept. 14, 2126 28,117,405 11.354
Aug. 24, 2129 26,696,131 11.419
Aug. 10, 2132 27,785,855 13.763
Oct. 14, 2142 23,715,363 13.207
Sept. 28, 2145 25,560,679 11.364
Sept. 8, 2148 28,273,330 11.347
Aug. 19, 2151 25,794,095 11.661
Oct. 11, 2164 22,792,039 12.233
Sept. 23, 2167 26,907,978 11.336
Sept. 2, 2170 27,902,372 11.335
Aug. 14, 2173 25,458,245 12.203
Oct. 16, 2183 29,281,075 15.351
Oct. 7, 2186 23,450,850 11.680
Sept. 17, 2189 27,835,916 11.344
Aug. 27, 2192 27,100,413 11.357
Aug. 12, 2195 26,411,959 13.139

Images and Observations

Ra-Shalom's orbit is determined by observations dating back to Oct. 3, 1975. It was last officially observed on July 27, 2019. The IAU Minor Planet Center records 1,558 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 Ra-Shalom:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 0.832030192523 AU
  • Eccentricity: 0.436498457428
  • Inclination: 15.7534182147°
  • Longitude of Ascending Node: 170.813701161°
  • Argument of Periapsis: 356.061061206°
  • Mean Anomaly: 12.2694863186°

Physical Characteristics

  • Diameter: 2.30000 km
  • Magnitude: 16.05
  • Albedo: 0.13
  • Spectral type (Tholen): C
  • Spectral type (SMASS): Xc

Derived Characteristics

  • Orbit Period: 277 days (0.76 years)
  • Avg. Orbit Speed: 32.65 km/s
  • Aphelion Distance: 1.20 AU
  • Perihelion Distance: 0.47 AU
  • Rotation Period: 19.80 days
  • Approx. Composition: platinum, nickel, iron, and cobalt.

Size Comparison

Orbit Simulation

Sky Map

The position of Ra-Shalom 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.