1244 Deira

Deira

Discovery
Discovered by	Cyril V. Jackson
Discovery site	Johannesburg (UO)
Discovery date	25 May 1932
Designations
MPC designation	1244
Alternative names	1932 KE
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	107.20 yr (39154 days)
Aphelion	2.5733178 AU (384.96286 Gm)
Perihelion	2.1133946 AU (316.15933 Gm)
Semi-major axis	2.343356 AU (350.5611 Gm)
Eccentricity	0.0981335
Orbital period	3.59 yr (1310.3 d)
Mean anomaly	225.42715°
Mean motion	0° 16^m 29.12^s / day
Inclination	8.694067°
Longitude of ascending node	277.12195°
Argument of perihelion	261.32311°
Earth MOID	1.13753 AU (170.172 Gm)
Jupiter MOID	2.46772 AU (369.166 Gm)
Jupiter Tisserand parameter	3.541
Physical characteristics
Dimensions	31 km[1]
Mean radius	15.475±0.95 km
Rotation period	210.6 h (8.78 d)
Sidereal rotation period	210.6 h[1]
Geometric albedo	0.0557±0.007[1]
Absolute magnitude (H)	11.5[1]

1244 Deira (1932 KE) is a main-belt asteroid discovered on May 25, 1932, by Cyril V. Jackson at Johannesburg (UO).^[1] It was later named after the ancient birthplace of the discoverer, Ossett in West Yorkshire, England.^[2] It has a long 210.6 hour rotation period.^[1]

References

1. "JPL Small-Body Database Browser". NASA. Retrieved 28 April 2016.
2. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer. p. 101. ISBN 3-540-00238-3.

• Oey, J. (2011) http://minorplanet.haoeydental.com.au

External links

• 1244 Deira at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters