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216692 (2004 HW50)
Classification: Main-belt Asteroid          SPK-ID: 2216692
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763313407255763 5.5889e-08  
a 2.732381826829037 3.4359e-08 au
q 2.250577275930073 1.4637e-07 au
i 28.21015837987413 5.9316e-06 deg
node 60.3945321352622 1.1504e-05 deg
peri 205.3941277119866 3.5111e-05 deg
M 247.7199793381702 4.3714e-05 deg
tp 2459911.029751885737
(2022-Nov-27.52975189)
0.00020822 TDB
period 1649.721024159336
4.52
3.1117e-05
8.519e-08
d
yr
n .21821871378735 4.1161e-09 deg/d
Q 3.214186377728 4.0417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      7057 days (19.32 yr)  
   first obs. used      2001-10-23  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:54  

Additional Information
 Earth MOID = 1.25474 au 
 Jupiter MOID = 1.87771 au 
 T_jup = 3.161 
[ show covariance matrix ]

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 15.35   n/a MPCxxxxx  

216692 (2004 HW50)          Discovered 2004-Apr-23 by NEAT at Haleakala
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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