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541428 (2011 HT56)
Classification: Main-belt Asteroid          SPK-ID: 2541428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07773582294276325 1.1208e-07  
a 3.082244755012293 6.7277e-08 au
q 2.842643922470397 3.7817e-07 au
i 4.920907232123708 8.787e-06 deg
node 27.58726692323563 0.000132 deg
peri 180.7043744487628 0.00016358 deg
M 276.3054913598463 0.00010262 deg
tp 2459660.008525471389
(2022-Mar-21.50852547)
0.00057368 TDB
period 1976.510428909262
5.41
6.4713e-05
1.772e-07
d
yr
n .1821391856751629 5.9634e-09 deg/d
Q 3.321845587554189 7.2507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5845 days (16.00 yr)  
   first obs. used      2005-02-09  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:11  

Additional Information
 Earth MOID = 1.83669 au 
 Jupiter MOID = 1.63708 au 
 T_jup = 3.217 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.71   .33815 MPCxxxxx autocmod 2.8

541428 (2011 HT56)          Discovered 2011-Apr-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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