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JPL Small-Body Database Browser
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382121 (2011 HG77)
Classification: Main-belt Asteroid          SPK-ID: 2382121
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577857816669794 1.2086e-07  
a 3.096086394281404 7.9102e-08 au
q 2.607567982451212 3.811e-07 au
i 27.3812628455943 1.0533e-05 deg
node 84.6764707729417 2.3657e-05 deg
peri 265.2117579612939 4.4473e-05 deg
M 59.33388622429785 4.1456e-05 deg
tp 2458272.541926256979
(2018-Jun-03.04192626)
0.00023015 TDB
period 1989.83943342546
5.45
7.6257e-05
2.088e-07
d
yr
n .1809191203836326 6.9334e-09 deg/d
Q 3.584604806111595 9.1583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      5460 days (14.95 yr)  
   first obs. used      2004-02-11  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58881  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:51:33  

Additional Information
 Earth MOID = 1.75909 au 
 Jupiter MOID = 2.03286 au 
 T_jup = 3.033 
[ 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 15.3   n/a MPO455743  

382121 (2011 HG77)          Discovered 2007-Sep-14 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2013-12-19

Alternate Designations
 2011 HG77 = 2007 RL283 = 2010 KT60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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