Discovery[1] | |
---|---|
Discovered by | LINEAR |
Discovery site | Lincoln Laboratory's ETS |
Discovery date | 5 March 2000 (first observation only) |
Designations | |
2000 EM26 | |
NEO · Aten · PHA[1][2] | |
Orbital characteristics[2] | |
Epoch 31 May 2020 (JD 2459000.5) | |
Uncertainty parameter 1[2] · 3[1] | |
Observation arc | 20.15 yr (7,358 d) |
Aphelion | 1.1985 AU |
Perihelion | 0.4358 AU |
0.8171 AU | |
Eccentricity | 0.4667 |
270 days | |
Average orbital speed | 12.37 km/s[3] |
272.21° | |
1° 20m 3.48s / day | |
Inclination | 3.8445° |
345.14° | |
24.171° | |
Earth MOID | 0.0188 AU (7.3 LD) |
Physical characteristics | |
110 m (est. at 0.14)[4] | |
22.5[1][2] | |
2000 EM26 is a sub-kilometer near-Earth object and potentially hazardous asteroid of the Aten group, approximately 110 meters (360 feet) in diameter. It was first observed by astronomers of the LINEAR program on 5 March 2000 and followed until 14 March 2000, by which time it had dimmed to apparent magnitude 20[1] and was 40° from the Moon.[5] By 17 March 2000 it was only 4 degrees from a 90% waxing gibbous moon.[5] It has never been listed on the Sentry Risk Table because none of the potential orbital solutions create a risk of impact in the next ~100 years. The asteroid safely passed Earth on 17–18 February 2014.[6] Due to a then-poorly determined orbit, the asteroid may have been significantly further from Earth and dozens of degrees from where the telescope was pointed during the 2014 approach.
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