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173655 (2001 HX12)
Classification: Main-belt Asteroid          SPK-ID: 2173655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1759555798192951 4.0321e-08  
a 2.41081526080255 1.02e-08 au
q 1.986618863750832 9.6319e-08 au
i 2.265725053066156 4.7583e-06 deg
node 190.6788826693759 0.00010446 deg
peri 67.50983688648903 0.00010519 deg
M 10.82236143717522 1.2204e-05 deg
tp 2458959.397914520538
(2020-Apr-19.89791452)
4.63e-05 TDB
period 1367.238643664131
3.74
8.6766e-06
2.376e-08
d
yr
n .2633044360384798 1.671e-09 deg/d
Q 2.835011657854268 1.1994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      669  
   data-arc span      10449 days (28.61 yr)  
   first obs. used      1991-11-07  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53833  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:27:06  

Additional Information
 Earth MOID = .972868 au 
 Jupiter MOID = 2.22283 au 
 T_jup = 3.497 
[ 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 16.0   n/a MPO427059  

173655 (2001 HX12)          Discovered 2001-Apr-18 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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