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442218 (2011 HB37)
Classification: Main-belt Asteroid          SPK-ID: 2442218
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .130578455262411 6.5595e-08  
a 2.257933683272457 3.1384e-08 au
q 1.963096190825773 1.3897e-07 au
i 6.120325640541139 6.0792e-06 deg
node 68.32831606751535 7.2723e-05 deg
peri 238.3184882817995 8.1211e-05 deg
M 170.8552113837311 3.1285e-05 deg
tp 2458412.346169721849
(2018-Oct-20.84616972)
0.00010853 TDB
period 1239.267899324351
3.39
2.5838e-05
7.074e-08
d
yr
n .2904940894509348 6.0566e-09 deg/d
Q 2.55277117571914 3.5482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      7781 days (21.30 yr)  
   first obs. used      1995-10-17  
   last obs. used      2017-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63435  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:30:46  

Additional Information
 Earth MOID = .956185 au 
 Jupiter MOID = 2.65793 au 
 T_jup = 3.603 
[ 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 17.8   n/a MPO353531  

442218 (2011 HB37)          Discovered 2011-Apr-01 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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