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120835 (1998 HM153)
Classification: Main-belt Asteroid          SPK-ID: 2120835
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08647003733374693 4.2962e-08  
a 2.76275300523328 2.0488e-08 au
q 2.523857649726836 1.2201e-07 au
i 10.30527852847298 4.6999e-06 deg
node 102.9275237033602 2.7196e-05 deg
peri 128.1900776061024 4.2227e-05 deg
M 285.4677778161799 3.3707e-05 deg
tp 2459347.758660784101
(2021-May-13.25866078)
0.0001585 TDB
period 1677.302973389878
4.59
1.8658e-05
5.108e-08
d
yr
n .2146302759318607 2.3875e-09 deg/d
Q 3.001648360739723 2.226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      8496 days (23.26 yr)  
   first obs. used      1997-01-13  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54622  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:40:12  

Additional Information
 Earth MOID = 1.52639 au 
 Jupiter MOID = 2.05571 au 
 T_jup = 3.312 
[ 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 15.0   n/a MPC30271  

120835 (1998 HM153)          Discovered 1998-Apr-24 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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