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15145 Ritageorge (2000 EF117)
Classification: Main-belt Asteroid          SPK-ID: 2015145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132865262570477 2.6839e-08  
a 2.203448823361251 6.0883e-09 au
q 1.91068701688475 5.8455e-08 au
i 4.31257338979608 3.3522e-06 deg
node 24.80294837895372 4.3474e-05 deg
peri 212.0389647553398 4.5731e-05 deg
M 38.85439603337012 1.5116e-05 deg
tp 2458871.559146422303
(2020-Jan-23.05914642)
5.0032e-05 TDB
period 1194.683537175667
3.27
4.9515e-06
1.356e-08
d
yr
n .3013350304056843 1.2489e-09 deg/d
Q 2.496210629837753 6.8972e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1725  
   data-arc span      11086 days (30.35 yr)  
   first obs. used      1990-03-25  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:57:33  

Additional Information
 Earth MOID = .900768 au 
 Jupiter MOID = 2.50312 au 
 T_jup = 3.648 
[ 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 15.0   n/a MPO319273  
diameter diameter 2.839 km 0.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15145 Ritageorge           Discovered 2000 Mar. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of Rita M. George for achievement as a finalist in the 2001 Discovery Young Scientist Challenge (DYSC), a middle school science competition. Rita is a student at the Manhattan Beach Middle School, Manhattan Beach, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011002/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 2000 EF117 = 1990 FO5 = 1994 RN11 = 1998 WG34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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