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136898 (1998 HM43)
Classification: Main-belt Asteroid          SPK-ID: 2136898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254764690555044 5.2027e-08  
a 3.013718603862855 2.3837e-08 au
q 2.635567834723259 1.4989e-07 au
i 10.5592416764353 4.8199e-06 deg
node 180.4339710117489 2.4045e-05 deg
peri 338.1535133004443 2.9905e-05 deg
M 191.6392363947122 1.947e-05 deg
tp 2460290.198155303988
(2023-Dec-11.69815530)
0.00010768 TDB
period 1910.963867232845
5.23
2.2673e-05
6.208e-08
d
yr
n .1883866074983903 2.2351e-09 deg/d
Q 3.39186937300245 2.6828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      8117 days (22.22 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56016  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:19:27  

Additional Information
 Earth MOID = 1.64778 au 
 Jupiter MOID = 1.59969 au 
 T_jup = 3.211 
[ 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 15.09   n/a E2021B55  

136898 (1998 HM43)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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