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487707 (2015 RF31)
Classification: Main-belt Asteroid          SPK-ID: 2487707
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2428175224919502 1.5995e-07  
a 3.140930854596725 5.4652e-08 au
q 2.378257806165024 5.039e-07 au
i 18.04442520809919 1.5547e-05 deg
node 26.15087399352891 2.0346e-05 deg
peri 359.8618630157291 2.925e-05 deg
M 303.8687102237665 1.8167e-05 deg
tp 2459317.521350200720
(2021-Apr-13.02135020)
0.000108 TDB
period 2033.227572842659
5.57
5.3067e-05
1.453e-07
d
yr
n .1770583897289389 4.6212e-09 deg/d
Q 3.903603903028426 6.7923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      5322 days (14.57 yr)  
   first obs. used      2004-11-03  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60925  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:37  

Additional Information
 Earth MOID = 1.38267 au 
 Jupiter MOID = 1.55479 au 
 T_jup = 3.090 
[ 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 16.1   n/a MPO477319  

487707 (2015 RF31)          Discovered 2004-Nov-03 by LONEOS at Anderson Mesa
Reference: Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 2015 RF31 = 2004 XU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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