9524 O'Rourke

9524 O'Rourke
Discovery [1]
Discovered by S. J. Bus
Discovery site Siding Spring Obs.
Discovery date 2 March 1981
Designations
MPC designation 9524 O'Rourke
Named after
 Laurence O'Rourke[2]
1981 EJ5 · 1975 NU
main-belt
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 14845 days (40.64 yr)
Aphelion 2.6940 AU (403.02 Gm)
Perihelion 1.7006 AU (254.41 Gm)
2.1973 AU (328.71 Gm)
Eccentricity 0.22606
3.26 yr (1189.7 d)
154.02°
0° 18m 9.36s / day
Inclination 4.9438°
287.03°
9.9075°
Earth MOID 0.683089 AU (102.1887 Gm)
Jupiter MOID 2.50813 AU (375.211 Gm)
Jupiter Tisserand parameter 3.629
Physical characteristics
14.7

    9524 O'Rourke, provisionally designated 1981 EJ5, is a main-belt asteroid. It was discovered by Schelte J. Bus at the Siding Spring Observatory near Coonabarabran, New South Wales, Australia, on March 2, 1981.[1]

    It is named after Laurence O'Rourke, a researcher at the European Space Astronomy Centre in Madrid and SGS operations coordinator of the Rosetta mission.[2][3]

    See also

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 9524 O'Rourke (1981 EJ5)" (2014-11-30 last obs.). Jet Propulsion Laboratory. Retrieved 13 April 2016.
    2. 1 2 Schmadel, Lutz D. (2014). Dictionary of Minor Planet Names and Discovery Circumstances Addendum 2012–2014, (9524) O'Rourke. Springer Berlin Heidelberg. pp. 13–252. ISBN 978-3-540-29925-7.
    3. ↑ "Asteroids Named After ESA Rosetta Scientists". ESA. Retrieved 18 August 2014.

    External links


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