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JPL Small-Body Database Browser
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100888 (1998 HH117)
Classification: Main-belt Asteroid          SPK-ID: 2100888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026442884880073 3.479e-08  
a 2.358001281444252 1.4188e-08 au
q 2.115965917656597 8.2086e-08 au
i 7.83255941086488 4.3557e-06 deg
node 71.60727910366477 3.8582e-05 deg
peri 201.6451186038037 4.9178e-05 deg
M 348.7363388874685 3.2432e-05 deg
tp 2459041.880101988853
(2020-Jul-11.38010199)
0.00011924 TDB
period 1322.557254444874
3.62
1.1937e-05
3.268e-08
d
yr
n .2721999359877281 2.4568e-09 deg/d
Q 2.600036645231907 1.5645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      9930 days (27.19 yr)  
   first obs. used      1992-11-19  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:53  

Additional Information
 Earth MOID = 1.10194 au 
 Jupiter MOID = 2.47532 au 
 T_jup = 3.533 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO366383  

100888 (1998 HH117)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 HH117 = 2002 LS44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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