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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158075211082649 1.0154e-07  
a 3.095979744182034 6.4726e-08 au
q 2.606582092612853 2.9486e-07 au
i 27.3801359748521 8.96e-06 deg
node 84.67509429487147 1.576e-05 deg
peri 265.2103514293915 3.4231e-05 deg
M 131.6730457227514 3.7641e-05 deg
tp 2458272.736997723899
(2018-Jun-03.23699772)
0.00020141 TDB
period 1989.736619072729
5.45
6.2397e-05
1.708e-07
d
yr
n .1809284688984463 5.6738e-09 deg/d
Q 3.585377395751214 7.4957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      5833 days (15.97 yr)  
   first obs. used      2004-02-11  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:32:34  

Additional Information
 Earth MOID = 1.75885 au 
 Jupiter MOID = 2.0346 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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