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22903 Georgeclooney (1999 TU18)
Classification: Main-belt Asteroid          SPK-ID: 2022903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2439132725486163 6.6199e-08  
a 2.390808757723254 1.2465e-08 au
q 1.807658769589083 1.5718e-07 au
i 25.44218514153907 6.8821e-06 deg
node 20.61177360489447 1.1389e-05 deg
peri 327.2499750189675 1.7759e-05 deg
M 281.1070284562676 2.1329e-05 deg
tp 2459496.404450691667
(2021-Oct-08.90445069)
8.1823e-05 TDB
period 1350.254657221908
3.70
1.056e-05
2.891e-08
d
yr
n .2666163734926009 2.0851e-09 deg/d
Q 2.973958745857425 1.5505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1084  
   data-arc span      25037 days (68.55 yr)  
   first obs. used      1951-11-05  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50501  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:14:32  

Additional Information
 Earth MOID = .835618 au 
 Jupiter MOID = 2.55674 au 
 T_jup = 3.364 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.34   n/a E2021B10  
diameter diameter 3.726 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.236   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22903 Georgeclooney           Discovered 1999 Oct. 14 by S. Donati at Monte Agliale.
George Clooney (b. 1961) is an American actor of international fame, winner of two Academy Awards and four Golden Globes. Among the films in which he starred are two set in space: "Solaris" (2002) and "Gravity" (2013). Clooney has been a Messenger of Peace of the United Nations since 2008.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-06-13Last Updated: 2015-02-04

Alternate Designations
 1999 TU18 = 1988 VY7 = 1998 HU137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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