Key Facts

  • Classified as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 2,931,715 km of Earth in 2028
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2000 SG344 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2000 SG344 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.

2000 SG344 orbits the sun every 353 days (0.97 years), coming as close as 0.91 AU and reaching as far as 1.04 AU from the sun. Based on its brightness and the way it reflects light, 2000 SG344 is probably between 0.200 to 0.890 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2000 SG344'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.

2000 SG344 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 7, 2028 2,931,715 2.034
Feb. 16, 2029 7,880,070 1.470
July 28, 2029 5,123,800 1.189
Nov. 21, 2029 6,776,559 1.255
Sept. 22, 2030 5,121,021 2.438
Sept. 16, 2031 26,840,212 6.704
May 8, 2068 18,709,872 5.087

NASA Sentry has assessed impact risk for 101 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)
Sept. 16, 2071 2,651.46 ±0.54 0.09134 1.064
Sept. 16, 2100 4,134.48 ±5.68 0.03272 1.064
Sept. 17, 2070 3,563.10 ±0.52 0.01429 1.063
Sept. 10, 2071 5,617.50 ±0.57 0.01298 1.063
Aug. 25, 2099 4,076.70 ±0.62 0.01064 1.063
Aug. 30, 2099 430.14 ±0.79 0.00680 1.064
Aug. 22, 2098 4,474.74 ±0.68 0.00614 1.064
Aug. 19, 2097 3,916.20 ±0.79 0.00522 1.063
Aug. 16, 2096 3,293.46 ±0.39 0.00448 1.064
Aug. 14, 2095 1,900.32 ±0.00 0.00407 1.064
Sept. 14, 2101 1,245.48 ±0.28 0.00368 1.065
Feb. 8, 2074 3,916.20 ±0.88 0.00367 1.063
Feb. 10, 2074 5,553.30 ±1.04 0.00365 1.063
Aug. 11, 2094 609.90 ±0.00 0.00360 1.065
Sept. 10, 2110 2,786.28 ±0.56 0.00359 1.064
Aug. 8, 2093 1,733.40 ±0.79 0.00287 1.064
Aug. 23, 2102 4,468.32 ±0.79 0.00281 1.063
Sept. 9, 2109 2,889.00 ±0.00 0.00277 1.063
Aug. 30, 2098 1,932.42 ±0.79 0.00268 1.064
Sept. 16, 2101 2,876.16 ±0.97 0.00266 1.064
Sept. 9, 2108 3,184.32 ±0.56 0.00252 1.064
Aug. 3, 2091 3,364.08 ±1.58 0.00248 1.064
Aug. 22, 2102 5,412.06 ±0.00 0.00226 1.063
Sept. 10, 2107 3,794.22 ±0.79 0.00211 1.064
Aug. 5, 2092 4,070.28 ±1.37 0.00206 1.063
Sept. 15, 2100 2,837.64 ±0.48 0.00182 1.064
Sept. 10, 2106 4,185.84 ±0.00 0.00179 1.063
Sept. 10, 2110 2,869.74 ±0.62 0.00171 1.064
Sept. 16, 2100 3,447.54 ±0.68 0.00167 1.064
Sept. 11, 2100 597.06 ±0.00 0.00132 1.064
Sept. 12, 2110 4,648.08 ±0.00 0.00128 1.063
Sept. 10, 2105 5,219.46 ±1.11 0.00128 1.064
Feb. 1, 2073 4,744.38 ±1.76 0.00124 1.062
Aug. 30, 2097 4,205.10 ±0.00 0.00119 1.064
Sept. 11, 2099 353.10 ±0.00 0.00095 1.065
Aug. 23, 2102 3,877.68 ±3.25 0.00093 1.061
Sept. 13, 2110 4,654.50 ±0.97 0.00087 1.063
Sept. 9, 2104 5,489.10 ±0.00 0.00083 1.064
Sept. 10, 2098 378.78 ±0.00 0.00076 1.064
Sept. 9, 2109 3,043.08 ±0.00 0.00069 1.063
Sept. 9, 2097 802.50 ±3.15 0.00065 1.064
Aug. 23, 2102 3,852.00 ±2.73 0.00063 1.061
Feb. 12, 2073 4,012.50 ±0.97 0.00061 1.064
Aug. 25, 2101 2,054.40 ±4.46 0.00052 1.064
Sept. 9, 2095 937.32 ±3.15 0.00050 1.064
Sept. 9, 2094 1,611.42 ±5.46 0.00044 1.064
Sept. 8, 2093 1,733.40 ±0.00 0.00040 1.064
Dec. 11, 2098 1,733.40 ±2.23 0.00035 1.065
Sept. 9, 2108 3,280.62 ±0.79 0.00035 1.063
Jan. 28, 2074 4,628.82 ±3.15 0.00031 1.063
Sept. 13, 2099 1,489.44 ±0.00 0.00030 1.065
Jan. 30, 2111 4,641.66 ±3.15 0.00030 1.063
Sept. 9, 2103 4,083.12 ±4.46 0.00029 1.063
Aug. 25, 2100 2,401.08 ±0.00 0.00027 1.065
Jan. 28, 2111 4,038.18 ±6.31 0.00026 1.063
Sept. 12, 2098 1,258.32 ±0.00 0.00021 1.064
Jan. 30, 2110 5,970.60 ±0.00 0.00019 1.064
Sept. 12, 2103 5,797.26 ±0.00 0.00018 1.063
Sept. 4, 2110 6,375.06 ±0.00 0.00018 1.065
Sept. 14, 2109 6,278.76 ±1.93 0.00018 1.065
Sept. 11, 2097 783.24 ±3.15 0.00017 1.064
Sept. 9, 2107 3,954.72 ±1.11 0.00017 1.063
Feb. 3, 2072 1,598.58 ±0.00 0.00016 1.064
Aug. 24, 2100 4,025.34 ±0.71 0.00014 1.064
Dec. 8, 2100 6,163.20 ±3.86 0.00013 1.063
Sept. 11, 2095 1,444.50 ±0.00 0.00012 1.064
Sept. 10, 2094 468.66 ±0.00 0.00011 1.065
Aug. 26, 2098 4,250.04 ±0.74 0.00011 1.064
Feb. 4, 2113 5,977.02 ±4.46 0.00011 1.064
Sept. 14, 2109 6,265.92 ±2.23 0.00010 1.065
Aug. 29, 2100 1,226.22 ±0.74 0.00009 1.065
Sept. 9, 2106 4,384.86 ±0.00 0.00009 1.063
Aug. 23, 2097 4,166.58 ±0.74 0.00008 1.063
Aug. 18, 2095 1,316.10 ±0.00 0.00008 1.064
Aug. 31, 2098 321.00 ±0.56 0.00007 1.064
Aug. 21, 2099 4,538.94 ±0.74 0.00007 1.063
Aug. 20, 2096 3,961.14 ±0.79 0.00007 1.064
Aug. 24, 2101 4,532.52 ±1.39 0.00007 1.063
Aug. 15, 2094 2,092.92 ±0.00 0.00006 1.064
Jan. 24, 2108 5,110.32 ±12.61 0.00006 1.064
Aug. 23, 2101 4,853.52 ±0.88 0.00006 1.063
Aug. 12, 2093 1,232.64 ±0.00 0.00006 1.065
Aug. 9, 2092 1,450.92 ±0.00 0.00005 1.064
Aug. 18, 2098 3,929.04 ±0.68 0.00005 1.064
Jan. 29, 2112 5,193.78 ±0.00 0.00004 1.062
Aug. 15, 2097 3,306.30 ±0.97 0.00004 1.063
Aug. 7, 2091 4,827.84 ±0.00 0.00004 1.065
Aug. 23, 2103 4,725.12 ±0.79 0.00004 1.063
Sept. 8, 2105 5,257.98 ±0.00 0.00004 1.063
Aug. 31, 2097 1,938.84 ±1.11 0.00003 1.065
Aug. 12, 2096 2,247.00 ±0.56 0.00003 1.065
Aug. 29, 2099 1,592.16 ±1.93 0.00003 1.064
Aug. 21, 2103 5,726.64 ±0.56 0.00003 1.064
Aug. 7, 2094 1,579.32 ±0.00 0.00002 1.064
Sept. 13, 2072 1,386.72 ±0.57 0.00001 1.064
Sept. 8, 2072 4,288.56 ±0.59 0.00001 1.063
Sept. 10, 2104 5,501.94 ±0.00 0.00000 1.064
Sept. 9, 2108 3,055.92 ±0.56 0.00000 1.063
Sept. 9, 2109 2,734.92 ±0.00 0.00000 1.064
Sept. 10, 2110 2,754.18 ±0.00 0.00000 1.064
Sept. 18, 2069 4,667.34 ±0.50 0.00000 1.063

Images and Observations

2000 SG344's orbit is determined by observations dating back to May 15, 1999. It was last officially observed on Oct. 3, 2000. The IAU Minor Planet Center records 31 observations used to determine its orbit.

Accessibility and Exploration

2000 SG344 can be reached with a journey of 370 days. This trajectory would require a delta-v of 3.55 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 3,302,718 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2000 SG344.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2000 SG344:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 0.977461222762 AU
  • Eccentricity: 0.0669336477623
  • Inclination: 0.112126222125°
  • Longitude of Ascending Node: 191.960116425°
  • Argument of Periapsis: 275.302776889°
  • Mean Anomaly: 347.712919638°

Physical Characteristics

  • Diameter: ~0.545 km
  • Magnitude: 24.7

Derived Characteristics

  • Orbit Period: 353 days (0.97 years)
  • Avg. Orbit Speed: 30.13 km/s
  • Aphelion Distance: 1.04 AU
  • Perihelion Distance: 0.91 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2000 SG344 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.