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78456 (2002 RL31)
Classification: Main-belt Asteroid          SPK-ID: 2078456
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06576294412441828 5.4463e-08  
a 2.521614374851652 1.1666e-08 au
q 2.355785589614953 1.381e-07 au
i 4.25666173108953 4.9625e-06 deg
node 302.8498603679782 5.0872e-05 deg
peri 48.82949862365962 6.0402e-05 deg
M 151.5584019373893 3.1627e-05 deg
tp 2458384.764843940120
(2018-Sep-23.26484394)
0.00012731 TDB
period 1462.569236333919
4.00
1.015e-05
2.779e-08
d
yr
n .2461421935158278 1.7082e-09 deg/d
Q 2.687443160088351 1.2433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      7411 days (20.29 yr)  
   first obs. used      2000-01-04  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:32:57  

Additional Information
 Earth MOID = 1.35184 au 
 Jupiter MOID = 2.59133 au 
 T_jup = 3.449 
[ 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 15.8   n/a MPO453205  

78456 (2002 RL31)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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