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JPL Small-Body Database Browser
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118379 (1999 HC12)
Classification: TransNeptunian Object          SPK-ID: 2118379
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2337511462073496 0.00082973  
a 45.63611581385674 0.038725 au
q 34.96862143391638 0.02838 au
i 15.30697658613116 0.0014339 deg
node 57.00780619693142 0.0015514 deg
peri 97.13052695588499 0.14159 deg
M 65.76267569858415 0.13903 deg
tp 2438030.304862424735
(1962-Dec-31.80486242)
19.742 TDB
period 112605.975515174
308.30
143.33
0.3924
d
yr
n .003196988422266177 4.0692e-06 deg/d
Q 56.30361019379711 0.047777 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      2188 days (5.99 yr)  
   first obs. used      1999-04-18  
   last obs. used      2005-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .25205  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 11:31:32  

Additional Information
 Earth MOID = 34.015 au 
 Jupiter MOID = 29.7548 au 
 T_jup = 5.669 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.6   n/a MPO87914  

118379 (1999 HC12)          Discovered 1999-Apr-18 by Kitt Peak at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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