2017 SX17

2017 SX17
Discovery[1]
Discovered byMount Lemmon Srvy.
Discovery siteMount Lemon Obs.
Discovery date29 September 2017
Designations
2017 SX17
NEO · Apollo[1][2]
Orbital characteristics[2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 5
Observation arc8 days
Aphelion1.4625 AU
Perihelion0.8673 AU
1.1649 AU
Eccentricity0.2555
1.26 yr (459 d)
90.265°
0° 47m 2.4s / day
Inclination2.8675°
189.81°
249.11°
Earth MOID0.00082 AU (0.32 LD)
Physical characteristics
6 m (est. at 0.24)[3]
8 m (estimate)[4]
12 m (est. at 0.057)[3]
28.3[2]

2017 SX17 is a very small asteroid, classified as a near-Earth object of the Apollo group, approximately 6–12 meters (20–40 feet) in diameter. It was first observed by astronomers of the Mount Lemmon Survey at Mount Lemmon Observatory on 29 September 2017, three days prior to its sub-lunar close encounter with Earth at 0.23 lunar distances on 2 October 2017.[1][2]

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  2. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference h was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Space.com was invoked but never defined (see the help page).