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118281 (1998 RH43)
Classification: Main-belt Asteroid          SPK-ID: 2118281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1406403028011643 3.5413e-08  
a 2.278808240513443 8.8918e-09 au
q 1.958315959541844 8.0768e-08 au
i 2.659650315697483 3.9496e-06 deg
node 244.3761380151636 9.0173e-05 deg
peri 346.3520854942428 9.147e-05 deg
M 278.8633288370849 1.4537e-05 deg
tp 2459483.687959168005
(2021-Sep-26.18795917)
5.0755e-05 TDB
period 1256.49307322185
3.44
7.3541e-06
2.013e-08
d
yr
n .2865117267036755 1.6769e-09 deg/d
Q 2.599300521485042 1.0142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      12288 days (33.64 yr)  
   first obs. used      1987-05-30  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55926  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:19:20  

Additional Information
 Earth MOID = .946531 au 
 Jupiter MOID = 2.39035 au 
 T_jup = 3.592 
[ 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 16.0   n/a MPO251130  

118281 (1998 RH43)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 RH43 = 1987 KR2 = 2004 FP25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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