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308017 (2004 RJ218)
Classification: Main-belt Asteroid          SPK-ID: 2308017
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010358523431524 4.9505e-08  
a 2.615414645450887 2.1583e-08 au
q 2.089622532971904 1.3393e-07 au
i 11.2017747935522 5.8973e-06 deg
node 249.2240457220351 2.993e-05 deg
peri 81.02860472708282 3.5083e-05 deg
M 283.6304046334116 2.2277e-05 deg
tp 2459328.238334688011
(2021-Apr-23.73833469)
9.8151e-05 TDB
period 1544.931591182722
4.23
1.9123e-05
5.236e-08
d
yr
n .2330200262941106 2.8843e-09 deg/d
Q 3.141206757929869 2.5921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      7095 days (19.43 yr)  
   first obs. used      2000-11-20  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51229  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:09:45  

Additional Information
 Earth MOID = 1.11375 au 
 Jupiter MOID = 2.31257 au 
 T_jup = 3.352 
[ 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 15.9   n/a MPO437365  

308017 (2004 RJ218)          Discovered 2004-Sep-11 by LINEAR at Socorro
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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