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10280 Yequanzhi (1981 EA43)
Classification: Main-belt Asteroid          SPK-ID: 2010280
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967130278856214 2.7951e-08  
a 2.363335687888032 5.7536e-09 au
q 1.89843676881343 6.7356e-08 au
i 1.492937339236573 3.8086e-06 deg
node 329.5577569544894 0.00011456 deg
peri 78.82735245840458 0.00011503 deg
M 94.05381405120497 9.4737e-06 deg
tp 2458853.794718502730
(2020-Jan-05.29471850)
3.4709e-05 TDB
period 1327.047739617087
3.63
4.8461e-06
1.327e-08
d
yr
n .2712788615305402 9.9066e-10 deg/d
Q 2.828234606962635 6.8855e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1379  
   data-arc span      16045 days (43.93 yr)  
   first obs. used      1977-02-11  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:53:57  

Additional Information
 Earth MOID = .908303 au 
 Jupiter MOID = 2.55731 au 
 T_jup = 3.523 
[ 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 15.38   n/a E2021B10  

10280 Yequanzhi           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring.
Quan-Zhi Ye (b. 1988) is a postdoctoral researcher at the California Institute of Technology who studies the transitions between asteroids and comets and associated meteor streams.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

[ show close-approach data ]
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