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118638 (2000 HR71)
Classification: Main-belt Asteroid          SPK-ID: 2118638
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2790683515294045 4.7175e-08  
a 2.583156709812346 1.3906e-08 au
q 1.862279425062894 1.2092e-07 au
i 11.86619713213616 5.8918e-06 deg
node 22.51223053501519 2.5089e-05 deg
peri 272.7149559939885 2.7019e-05 deg
M 256.3458290040738 9.3851e-06 deg
tp 2459437.125242169532
(2021-Aug-10.62524217)		 4.017e-05 TDB
period 1516.437647137318
4.15		 1.2245e-05
3.352e-08		 d
yr
n .2373984849819551 1.917e-09 deg/d
Q 3.304033994561797 1.7787e-08 au
   Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      7308 days (20.01 yr)  
   first obs. used      2000-04-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57141  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:21:53  

Additional Information
 Earth MOID = .892715 au 
 Jupiter MOID = 2.09235 au 
 T_jup = 3.339 
[ 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 15.6   n/a MPO432689  

118638 (2000 HR71)          Discovered 2000-Apr-25 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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