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173660 (2001 HD53)
Classification: Main-belt Asteroid          SPK-ID: 2173660
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1341743820721698 4.8126e-08  
a 2.356726404053681 1.0806e-08 au
q 2.040514095076611 1.1216e-07 au
i 3.141749928408595 4.8215e-06 deg
node 160.9814859501688 7.9282e-05 deg
peri 35.34328133560724 8.1296e-05 deg
M 120.3292519904657 1.5731e-05 deg
tp 2458558.796445245223
(2019-Mar-16.29644525)
5.8016e-05 TDB
period 1321.484818374166
3.62
9.089e-06
2.488e-08
d
yr
n .2724208367697413 1.8737e-09 deg/d
Q 2.67293871303075 1.2256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      6645 days (18.19 yr)  
   first obs. used      2001-04-23  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:07:21  

Additional Information
 Earth MOID = 1.04012 au 
 Jupiter MOID = 2.28223 au 
 T_jup = 3.540 
[ 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 16.4   n/a MPO338380  

173660 (2001 HD53)          Discovered 2001-Apr-23 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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