1981 Midas

1981 Midas
	Radar images of Midas by the Arecibo Observatory in March 2018
Discovery
Discovered by	C. Kowal
Discovery site	Palomar Obs.
Discovery date	6 March 1973
Designations
MPC designation	(1981) Midas
Pronunciation	/ˈmaɪdəs/
Named after	Midās (Greek mythology)
Alternative designations	1973 EA
Minor planet category	Apollo; NEO; PHA; Venus-crosser; Mars-crosser;
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	41.97 yr (15,330 days)
Aphelion	2.9307 AU
Perihelion	0.6212 AU
Semi-major axis	1.7759 AU
Eccentricity	0.6502
Orbital period (sidereal)	2.37 yr (864 days)
Mean anomaly	256.48°
Mean motion	0° 24m 59.4s / day
Inclination	39.833°
Longitude of ascending node	356.90°
Argument of perihelion	267.80°
Earth MOID	0.0045 AU (1.8 LD)
Physical characteristics
Dimensions	1.95±0.07 km; 3.4 km (outdated);
Synodic rotation period	5.22 h
Geometric albedo	0.2661 (derived); 0.293±0.025;
Spectral type	SMASS = V; V;
Absolute magnitude (H)	15.18; 15.2; 15.50; 15.6±0.2; 15.96±0.23;

1981 Midas, provisional designation 1973 EA, is a vestoid asteroid, classified as a near-Earth object and potentially hazardous asteroid, approximately 2 kilometers in diameter.^[1]

It was discovered on 6 March 1973 by American astronomer Charles Kowal at Palomar Observatory in San Diego County, California.^[4] It was named after King Midas from Greek mythology.^[3]

^ ^a ^b ^c ^d ^e ^f ^g Cite error: The named reference jpldata was invoked but never defined (see the help page).
^ "Midas". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 4 February 2020.
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[2] "Midas". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 4 February 2020.

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[Veres-2015-11] Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).

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1981 Midas

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