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4334 Foo (1983 RO3)
Classification: Main-belt Asteroid          SPK-ID: 2004334
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195425773950188 3.5819e-08  
a 3.139162681230134 1.507e-08 au
q 2.525689384695188 1.1276e-07 au
i 1.633601266032058 4.1876e-06 deg
node 61.79786725404053 0.00013509 deg
peri 348.6881271087121 0.00013546 deg
M 88.25957399855531 9.9254e-06 deg
tp 2458102.443643516378
(2017-Dec-14.94364352)
5.4826e-05 TDB
period 2031.510919563682
5.56
1.4629e-05
4.005e-08
d
yr
n .1772080063824215 1.2761e-09 deg/d
Q 3.752635977765081 1.8015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1917  
   data-arc span      14804 days (40.53 yr)  
   first obs. used      1978-10-28  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45028  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:23:24  

Additional Information
 Earth MOID = 1.53589 au 
 Jupiter MOID = 1.63105 au 
 T_jup = 3.180 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO435739  
rotation period rot_per 7.42 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]

4334 Foo           Discovered 1983 Sept. 2 by H. Debehogne at the European Southern Observatory.
Lillian Foo (b. 1972) is a consultant at the World Bank who helped develop a radio program that was broadcast in Ghana, Kenya, Tanzania and Uganda. She was previously a photojournalist at The Straits Times in Singapore. The name was suggested by T. H. Burbine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

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Alternate Designations
 1983 RO3 = 1980 DQ2 = 1984 YU3 
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