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118629 (2000 HC42)
Classification: Main-belt Asteroid          SPK-ID: 2118629
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1932233311187581 3.0851e-08  
a 2.406786571294243 7.164e-09 au
q 1.941739252696875 7.3317e-08 au
i 1.679705821247912 4.1405e-06 deg
node 19.26125887369443 0.00011429 deg
peri 323.7978607098755 0.00011489 deg
M 67.74054089983805 1.2245e-05 deg
tp 2458943.873822128680
(2020-Apr-04.37382213)
4.5786e-05 TDB
period 1363.812907403226
3.73
6.0892e-06
1.667e-08
d
yr
n .2639658255511451 1.1786e-09 deg/d
Q 2.871833889891612 8.5482e-09 au
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      2000-04-05  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:08  

Additional Information
 Earth MOID = .932368 au 
 Jupiter MOID = 2.53142 au 
 T_jup = 3.496 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457586.5 (2016-Jul-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941528557958176 3.09e-08  
q 1.939337263337497 7.3516e-08 au
tp 2457581.130767544758
(2016-Jul-11.63076754)
4.2806e-05 TDB
node 19.32160898277268 0.00011411 deg
peri 323.9689966555782 0.00011471 deg
i 1.681451049261954 4.1436e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      2000-04-05  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:08  

Additional Information
 Jupiter MOID = 2.53142 au 
 T_jup = 3.496 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.54835127297571E-16 -2.264967179608719E-15 5.074417283547228E-13 -6.860637275264749E-15 1.326954420228726E-13 -2.732660721798015E-16
q -2.264967179608719E-15 5.404590295886267E-15 -1.124922488008607E-12 1.630265856283559E-14 -2.943551348076145E-13 6.704439604216632E-16
tp 5.074417283547228E-13 -1.124922488008607E-12 1.832350093877709E-9 -9.662756114963458E-12 5.100148567177624E-10 -4.970239864677841E-13
node -6.860637275264749E-15 1.630265856283559E-14 -9.662756114963458E-12 1.30220880797297E-8 -1.301835445148047E-8 1.157148987398239E-10
peri 1.326954420228726E-13 -2.943551348076145E-13 5.100148567177624E-10 -1.301835445148047E-8 1.31583582662371E-8 -1.158005748203073E-10
i -2.732660721798015E-16 6.704439604216632E-16 -4.970239864677841E-13 1.157148987398239E-10 -1.158005748203073E-10 1.716926428143964E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.89   n/a E2021B55  

118629 (2000 HC42)          Discovered 2000-Apr-29 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 2000 HC42 = 2001 ON71 = 2001 RY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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