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118639 (2000 HM73)
Classification: Main-belt Asteroid          SPK-ID: 2118639
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0848389987667339 4.1864e-08  
a 2.374952295137463 1.3784e-08 au
q 2.173463720299244 1.0479e-07 au
i 11.89236738823871 4.5975e-06 deg
node 138.7271005976545 2.2786e-05 deg
peri 17.66884843367389 3.8304e-05 deg
M 279.1885414026257 3.2052e-05 deg
tp 2459500.589781613184
(2021-Oct-13.08978161)
0.00012018 TDB
period 1336.84409681298
3.66
1.1639e-05
3.187e-08
d
yr
n .2692909374086594 2.3445e-09 deg/d
Q 2.576440869975682 1.4954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1997-07-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54766  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:11  

Additional Information
 Earth MOID = 1.18666 au 
 Jupiter MOID = 2.41995 au 
 T_jup = 3.508 
[ 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 16.2   n/a MPO436570  

118639 (2000 HM73)          Discovered 2000-Apr-27 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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