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JPL Small-Body Database Browser
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65645 (1981 EG13)
Classification: Main-belt Asteroid          SPK-ID: 2065645
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05146440330090672 4.2997e-08  
a 2.302203187887464 1.0242e-08 au
q 2.18372167454539 9.9318e-08 au
i 6.359029301534717 4.3467e-06 deg
node 311.5636277432913 3.4679e-05 deg
peri 210.1506848687169 5.0468e-05 deg
M 344.4202691109562 3.6022e-05 deg
tp 2458655.716815270166
(2019-Jun-21.21681527)
0.00012763 TDB
period 1275.891967507531
3.49
8.5141e-06
2.331e-08
d
yr
n .282155550131148 1.8828e-09 deg/d
Q 2.420684701229537 1.0769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      975  
   data-arc span      13961 days (38.22 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53069  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:50:07  

Additional Information
 Earth MOID = 1.19559 au 
 Jupiter MOID = 2.57236 au 
 T_jup = 3.581 
[ 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 15.5   n/a MPO468580  

65645 (1981 EG13)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EG13 = 2000 SG176 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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