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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968583287822791 2.7004e-08  
a 2.362954454947972 5.4281e-09 au
q 1.897787189958273 6.4729e-08 au
i 1.492893531356381 3.6135e-06 deg
node 329.5564797760563 0.000109 deg
peri 78.79354865562378 0.00010938 deg
M 147.2621332023955 9.0964e-06 deg
tp 2458853.787231220335
(2020-Jan-05.28723122)
3.2948e-05 TDB
period 1326.726650714449
3.63
4.5716e-06
1.252e-08
d
yr
n .2713445153198198 9.3499e-10 deg/d
Q 2.828121719937671 6.4967e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1521  
   data-arc span      16189 days (44.32 yr)  
   first obs. used      1977-02-11  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50388  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:18:49  

Additional Information
 Earth MOID = .908006 au 
 Jupiter MOID = 2.55858 au 
 T_jup = 3.523 
[ 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 15.38   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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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