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JPL Small-Body Database Browser
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379767 (2011 HH20)
Classification: Main-belt Asteroid          SPK-ID: 2379767
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07489551362081272 5.7399e-08  
a 2.880954718784628 4.0087e-08 au
q 2.665184135402949 1.7147e-07 au
i 2.490505600414266 6.2189e-06 deg
node 51.957883379173 0.00015049 deg
peri 257.9562413509802 0.00015659 deg
M 206.6459815125276 4.2409e-05 deg
tp 2459761.344201818539
(2022-Jun-30.84420182)
0.00020999 TDB
period 1786.088916066123
4.89
3.7279e-05
1.021e-07
d
yr
n .2015577146029791 4.2069e-09 deg/d
Q 3.096725302166306 4.3089e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6465 days (17.70 yr)  
   first obs. used      2001-03-23  
   last obs. used      2018-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:38:57  

Additional Information
 Earth MOID = 1.65206 au 
 Jupiter MOID = 2.08561 au 
 T_jup = 3.289 
[ 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 16.5   n/a MPO471895  

379767 (2011 HH20)          Discovered 2001-Mar-23 by ADAS at Cima Ekar
Reference: Last Updated: 2013-11-20

Alternate Designations
 2011 HH20 = 2003 SX274 = 2012 ME8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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