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 2 3 "JPL Small-Body Database Browser: 9524 O'Rourke (1981 EJ5)" (2014-11-30 last obs.). Jet Propulsion Laboratory. Retrieved 13 April 2016.
- 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.
- ↑ "Asteroids Named After ESA Rosetta Scientists". ESA. Retrieved 18 August 2014.
External links
- "9524 O'Rourke (1981 EJ5)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2009524.
- 9524 O'Rourke at the JPL Small-Body Database
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