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JPL Small-Body Database Browser
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379781 (2011 HB57)
Classification: Outer Main-belt Asteroid          SPK-ID: 2379781
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2332566553810943 7.6284e-08  
a 3.950225421578619 7.3051e-08 au
q 3.028809051739817 3.3681e-07 au
i 12.71691212934733 6.8537e-06 deg
node 127.5531671635079 4.0063e-05 deg
peri 167.0693311186518 4.4823e-05 deg
M 323.2959868685555 1.8826e-05 deg
tp 2458892.876388333466
(2020-Feb-13.37638833)
0.00015346 TDB
period 2867.683689603817
7.85
7.9548e-05
2.178e-07
d
yr
n .1255368579544195 3.4823e-09 deg/d
Q 4.871641791417422 9.0091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      5522 days (15.12 yr)  
   first obs. used      2004-07-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55064  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:35  

Additional Information
 Earth MOID = 2.01382 au 
 Jupiter MOID = .444567 au 
 T_jup = 2.970 
[ 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 15.1   n/a MPO440649  

379781 (2011 HB57)          Discovered 2004-Jul-11 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

Alternate Designations
 2011 HB57 = 2004 NT14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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