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JPL Small-Body Database Browser
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442220 (2011 HT63)
Classification: Main-belt Asteroid          SPK-ID: 2442220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533886585836922 5.7622e-08  
a 2.304606786276604 2.5063e-08 au
q 1.951106242766762 1.2621e-07 au
i 6.287299155146645 6.3093e-06 deg
node 189.547267819416 5.2258e-05 deg
peri 106.6578304119548 5.7863e-05 deg
M 28.06561032756702 2.3939e-05 deg
tp 2458500.875610803417
(2019-Jan-17.37561080)
8.4318e-05 TDB
period 1277.890617455852
3.50
2.0846e-05
5.707e-08
d
yr
n .2817142524426094 4.5955e-09 deg/d
Q 2.658107329786446 2.8907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5137 days (14.06 yr)  
   first obs. used      2005-10-07  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45099  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:59:48  

Additional Information
 Earth MOID = .946091 au 
 Jupiter MOID = 2.54823 au 
 T_jup = 3.565 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO342997  

442220 (2011 HT63)          Discovered 2011-Apr-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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