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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1190475815304301 0.00019903  
a 44.00867393813633 0.020724 au
q 38.76954773943992 0.010213 au
i 5.045387018623634 0.00016555 deg
node 87.97803384184536 0.0024669 deg
peri 188.1162324237118 0.13828 deg
M 328.058071403992 0.12506 deg
tp 2468462.097839252445
(2046-Apr-26.59783925)
30.423 TDB
period 106636.4922798235
291.95
75.325
0.2062
d
yr
n .003375955006615639 2.3847e-06 deg/d
Q 49.24780013683273 0.023191 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 = 37.7532 au 
 Jupiter MOID = 33.5304 au 
 T_jup = 5.871 
[ 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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