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52686 (1998 EN11)
Classification: Main-belt Asteroid          SPK-ID: 2052686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596300339499223 3.589e-08  
a 3.155398233765496 2.3509e-08 au
q 2.651701906583985 1.1852e-07 au
i 26.66281155851306 5.9301e-06 deg
node 159.696666740673 9.0454e-06 deg
peri 77.12129427685029 2.0684e-05 deg
M 333.8010690162355 1.8984e-05 deg
tp 2459349.491250093376
(2021-May-14.99125009)
0.00010859 TDB
period 2047.291550439756
5.61
2.2879e-05
6.264e-08
d
yr
n .1758420777552041 1.9651e-09 deg/d
Q 3.659094560947007 2.7261e-08 au
  Orbit Determination Parameters
   # obs. used (total)      776  
   data-arc span      9720 days (26.61 yr)  
   first obs. used      1994-08-10  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57081  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:19:28  

Additional Information
 Earth MOID = 1.78179 au 
 Jupiter MOID = 1.68285 au 
 T_jup = 3.023 
[ 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 14.16   n/a MPCxxxxx  
diameter diameter 9.162 km 0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52686 (1998 EN11)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EN11 = 1994 PY15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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