5638 Deikoon

Deikoon

Discovery
Discovered by	Shoemaker, C. S.
Discovery site	Palomar
Discovery date	10 October 1988
Designations
MPC designation	5638
Alternative names	1988 TA3
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	9996 days (27.37 yr)
Aphelion	5.8125 AU (869.54 Gm)
Perihelion	4.6978 AU (702.78 Gm)
Semi-major axis	5.2552 AU (786.17 Gm)
Eccentricity	0.10606
Orbital period	12.05 yr (4400.25 d)
Mean anomaly	195.075°
Mean motion	0° 4^m 54.53^s / day
Inclination	10.905°
Longitude of ascending node	156.035°
Argument of perihelion	91.504°
Earth MOID	3.70629 AU (554.453 Gm)
Jupiter MOID	0.1964 AU (29.38 Gm)
Jupiter Tisserand parameter	2.953
Physical characteristics
Dimensions	59 km[2]
Rotation period	19.40 h (0.808 d)
Absolute magnitude (H)	10.0,[2] 10.5[1]

5638 Deikoon (1988 TA3) is a Jupiter Trojan discovered on October 10, 1988 by Shoemaker, C. S. at Palomar.

Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 9.137 ± 0.003 hours with a brightness variation of 0.07 ± 0.01 magnitude.^[2]

References

1. "5638 Deikoon (1988 TA3)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
2. Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170.

External links

• JPL Small-Body Database Browser on 5638 Deikoon
• 5638 Deikoon at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters