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JPL Small-Body Database Browser
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442221 (2011 HB100)
Classification: Main-belt Asteroid          SPK-ID: 2442221
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 .09252027539306991 8.4808e-08  
a 2.271457742565099 4.106e-08 au
q 2.061301846679255 1.7939e-07 au
i 7.170709902785839 1.0309e-05 deg
node 48.82787311196695 6.1327e-05 deg
peri 222.2960496641567 0.0001223 deg
M 70.31785971492322 8.9031e-05 deg
tp 2458356.259004034917
(2018-Aug-25.75900404)
0.00031323 TDB
period 1250.418583612972
3.42
3.3905e-05
9.283e-08
d
yr
n .2879035906198805 7.8065e-09 deg/d
Q 2.481613638450943 4.4859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      3131 days (8.57 yr)  
   first obs. used      2009-11-17  
   last obs. used      2018-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56276  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:05:14  

Additional Information
 Earth MOID = 1.05138 au 
 Jupiter MOID = 2.58017 au 
 T_jup = 3.596 
[ 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 18.3   n/a MPO243505  

442221 (2011 HB100)          Discovered 2011-Apr-02 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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