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43737 (1981 EU3)
Classification: Main-belt Asteroid          SPK-ID: 2043737
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .116173097842656 3.7473e-08  
a 2.509782813603499 1.0088e-08 au
q 2.218213569234923 9.4628e-08 au
i 9.393998472943876 4.7777e-06 deg
node 228.2078465009785 1.9819e-05 deg
peri 311.8931753952985 2.7207e-05 deg
M 356.9761304976939 1.855e-05 deg
tp 2459212.698689652157
(2020-Dec-29.19868965)
7.4853e-05 TDB
period 1452.287630609489
3.98
8.7557e-06
2.397e-08
d
yr
n .2478847801305841 1.4945e-09 deg/d
Q 2.801352057972075 1.1259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      14656 days (40.13 yr)  
   first obs. used      1981-02-02  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55182  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:26:39  

Additional Information
 Earth MOID = 1.23106 au 
 Jupiter MOID = 2.20456 au 
 T_jup = 3.434 
[ 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 15.3   n/a MPO309493  

43737 (1981 EU3)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EU3 = 1999 XN4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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