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52252 (1981 EJ35)
Classification: Main-belt Asteroid          SPK-ID: 2052252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791796134151968 3.6734e-08  
a 2.395892852343012 9.5685e-09 au
q 1.966597697275958 9.1141e-08 au
i 5.075491700260189 4.5234e-06 deg
node 167.5584120226789 4.5624e-05 deg
peri 317.7175943908372 4.7932e-05 deg
M 343.7957840258896 1.3937e-05 deg
tp 2459457.471241310768
(2021-Aug-30.97124131)
5.2563e-05 TDB
period 1354.563954648934
3.71
8.1146e-06
2.222e-08
d
yr
n .2657681822733149 1.5921e-09 deg/d
Q 2.825188007410066 1.1283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      14613 days (40.01 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56055  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:49  

Additional Information
 Earth MOID = .985751 au 
 Jupiter MOID = 2.24651 au 
 T_jup = 3.502 
[ 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 16.39   n/a MPCxxxxx  
diameter diameter 3.307 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52252 (1981 EJ35)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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