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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1181817766978826 3.6205e-05  
a 43.94717428642389 0.0033896 au
q 38.75341914840282 0.0014725 au
i 5.0470543118385 8.0497e-05 deg
node 87.96650440609915 0.0007762 deg
peri 188.6715148571367 0.021017 deg
M 328.2309344773201 0.019465 deg
tp 2468591.174787474125
(2046-Sep-02.67478747)
4.6792 TDB
period 106413.042620887
291.34
12.311
0.03371
d
yr
n .003383043949627077 3.9139e-07 deg/d
Q 49.14092942444497 0.0037902 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      7589 days (20.78 yr)  
   first obs. used      1999-04-17  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .58602  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:11:57  

Additional Information
 Earth MOID = 37.7352 au 
 Jupiter MOID = 33.5162 au 
 T_jup = 5.868 
[ 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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