Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 5,583,192 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2019 SF6 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2019 SF6 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.

2019 SF6 orbits the sun every 243 days (0.67 years), coming as close as 0.45 AU and reaching as far as 1.08 AU from the sun. Based on its brightness and the way it reflects light, 2019 SF6 is probably between 0.015 to 0.034 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2019 SF6's orbit is 0.02 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.

2019 SF6 has 91 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 25, 2019 5,583,192 8.755
Sept. 25, 2021 5,678,787 8.723
Sept. 26, 2023 6,402,380 8.614
Sept. 28, 2025 7,655,357 8.444
Oct. 1, 2027 9,146,940 8.281
Oct. 5, 2029 10,491,748 8.167
Oct. 9, 2031 11,526,564 8.097
Oct. 13, 2033 12,225,902 8.064
Oct. 19, 2035 12,469,630 8.052
Oct. 23, 2037 12,207,214 8.055
Oct. 28, 2039 11,562,998 8.079
Nov. 1, 2041 10,581,831 8.139
Nov. 5, 2043 9,367,019 8.239
Nov. 7, 2045 8,162,923 8.373
Nov. 9, 2047 7,284,185 8.483
Nov. 9, 2049 6,823,657 8.535
Nov. 10, 2051 6,695,489 8.560
Nov. 9, 2053 6,979,962 8.536
Nov. 8, 2055 7,806,999 8.407
Nov. 5, 2057 8,975,425 8.270
Nov. 3, 2059 10,127,344 8.187
Oct. 30, 2061 11,184,916 8.096
Oct. 26, 2063 12,096,705 8.076
Oct. 21, 2065 12,625,514 8.057
Oct. 17, 2067 12,747,275 8.047
Oct. 12, 2069 12,473,403 8.072
Oct. 8, 2071 11,811,953 8.073
Oct. 4, 2073 10,896,344 8.141
Oct. 2, 2075 9,924,506 8.197
Sept. 29, 2077 8,944,313 8.283
Sept. 28, 2079 8,306,493 8.370
Sept. 27, 2081 7,776,367 8.421
Sept. 27, 2083 7,561,969 8.443
Sept. 26, 2085 7,532,923 8.464
Sept. 27, 2087 7,793,569 8.441
Sept. 27, 2089 8,172,008 8.379
Sept. 29, 2091 8,821,804 8.297
Oct. 1, 2093 9,654,466 8.226
Oct. 4, 2095 10,571,879 8.170
Oct. 6, 2097 11,310,761 8.128
Oct. 10, 2099 11,957,913 8.097
Oct. 14, 2101 12,360,687 8.071
Oct. 18, 2103 12,507,260 8.056
Oct. 22, 2105 12,334,684 8.059
Oct. 27, 2107 11,773,243 8.080
Oct. 30, 2109 10,912,284 8.126
Nov. 3, 2111 9,861,037 8.211
Nov. 6, 2113 8,644,375 8.327
Nov. 8, 2115 7,451,244 8.465
Nov. 9, 2117 6,514,685 8.594
Nov. 11, 2119 6,011,752 8.678
Nov. 10, 2121 5,915,467 8.711
Nov. 10, 2123 6,248,331 8.655
Nov. 9, 2125 6,988,490 8.515
Nov. 7, 2127 8,063,960 8.380
Nov. 4, 2129 9,268,166 8.251
Nov. 1, 2131 10,433,894 8.136
Oct. 28, 2133 11,441,309 8.100
Oct. 25, 2135 12,229,453 8.053
Oct. 20, 2137 12,627,987 8.051
Oct. 17, 2139 12,718,789 8.051
Oct. 12, 2141 12,510,501 8.047
Oct. 9, 2143 11,940,854 8.088
Oct. 4, 2145 10,995,975 8.110
Oct. 1, 2147 9,844,808 8.212
Sept. 27, 2149 8,526,414 8.338
Sept. 25, 2151 7,135,735 8.496
Sept. 23, 2153 6,044,534 8.677
Sept. 23, 2155 5,481,644 8.759
Sept. 23, 2157 5,521,234 8.740
Sept. 24, 2159 6,100,082 8.658
Sept. 25, 2161 7,180,057 8.510
Sept. 28, 2163 8,556,468 8.345
Oct. 1, 2165 9,931,357 8.212
Oct. 5, 2167 11,085,195 8.122
Oct. 9, 2169 11,946,785 8.077
Oct. 14, 2171 12,449,826 8.063
Oct. 17, 2173 12,550,039 8.062
Oct. 22, 2175 12,334,291 8.079
Oct. 24, 2177 11,881,742 8.101
Oct. 28, 2179 11,223,554 8.132
Oct. 31, 2181 10,321,292 8.175
Nov. 3, 2183 9,233,696 8.260
Nov. 5, 2185 8,118,400 8.371
Nov. 7, 2187 7,164,183 8.509
Nov. 8, 2189 6,454,650 8.634
Nov. 9, 2191 5,933,804 8.715
Nov. 9, 2193 5,649,279 8.752
Nov. 9, 2195 5,787,426 8.731
Nov. 8, 2197 6,284,984 8.653
Nov. 7, 2199 7,075,234 8.516

Images and Observations

2019 SF6's orbit is determined by observations dating back to Oct. 9, 2015. It was last officially observed on Sept. 29, 2021. The IAU Minor Planet Center records 42 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 2019 SF6:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.7627 AU
  • Eccentricity: 0.4163
  • Inclination: 2.17°
  • Longitude of Ascending Node: 200.97°
  • Argument of Periapsis: 3.37°
  • Mean Anomaly: 116.94°

Physical Characteristics

  • Diameter: ~0.020 km
  • Magnitude: 26.22

Derived Characteristics

  • Orbit Period: 243 days (0.67 years)
  • Avg. Orbit Speed: 34.15 km/s
  • Aphelion Distance: 1.08 AU
  • Perihelion Distance: 0.45 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2019 SF6 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.