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117222 (2004 RD308)
Classification: Main-belt Asteroid          SPK-ID: 2117222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1413969088710635 4.6686e-08  
a 2.744237878735044 2.3775e-08 au
q 2.356211125475025 1.2752e-07 au
i 4.052759302377451 5.1031e-06 deg
node 257.5573890728944 8.0244e-05 deg
peri 38.66435870828335 8.3174e-05 deg
M 225.8058157658512 2.5692e-05 deg
tp 2459619.459527920964
(2022-Feb-08.95952792)
0.00012347 TDB
period 1660.470096548669
4.55
2.1579e-05
5.908e-08
d
yr
n .216806072417847 2.8175e-09 deg/d
Q 3.132264631995064 2.7137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      7481 days (20.48 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:44:33  

Additional Information
 Earth MOID = 1.34192 au 
 Jupiter MOID = 2.05673 au 
 T_jup = 3.330 
[ show covariance matrix ]

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 15.7   n/a MPO469212  

117222 (2004 RD308)          Discovered 2004-Sep-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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