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JPL Small-Body Database Browser
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118378 (1999 HT11)
Classification: TransNeptunian Object          SPK-ID: 2118378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1197621197188512 0.00020403  
a 44.09823225990063 0.020831 au
q 38.8169344886007 0.010032 au
i 5.044539646894156 0.00016525 deg
node 87.98419549277385 0.0024653 deg
peri 187.0119927378392 0.13608 deg
M 327.6591187530743 0.12377 deg
tp 2468209.529939690343
(2045-Aug-17.02993969)
30.035 TDB
period 106962.1681572872
292.85
75.79
0.2075
d
yr
n .003365675978731303 2.3848e-06 deg/d
Q 49.37953003120055 0.023326 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      5881 days (16.10 yr)  
   first obs. used      1999-04-17  
   last obs. used      2015-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .29499  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 11:31:33  

Additional Information
 Earth MOID = 37.8001 au 
 Jupiter MOID = 33.5731 au 
 T_jup = 5.876 
[ 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 7.6   n/a MPO341358  

118378 (1999 HT11)          Discovered 1999-Apr-17 by Kitt Peak at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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