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30754 (1981 EB39)
Classification: Main-belt Asteroid          SPK-ID: 2030754
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2169433670964133 3.0845e-08  
a 2.395803184613265 9.9266e-09 au
q 1.876049574842954 7.2301e-08 au
i 8.808195913570382 5.9767e-06 deg
node 182.07968815605 2.2771e-05 deg
peri 79.01272942941472 2.7737e-05 deg
M 201.0379398728119 1.6209e-05 deg
tp 2459798.589413770685
(2022-Aug-07.08941377)
6.2873e-05 TDB
period 1354.48791230544
3.71
8.4181e-06
2.305e-08
d
yr
n .2657831027722153 1.6518e-09 deg/d
Q 2.915556794383577 1.208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      14648 days (40.10 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55314  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:24  

Additional Information
 Earth MOID = .883817 au 
 Jupiter MOID = 2.20591 au 
 T_jup = 3.481 
[ 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 15.66   n/a MPCxxxxx  

30754 (1981 EB39)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EB39 = 1992 DU8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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