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52259 (1981 EY47)
Classification: Main-belt Asteroid          SPK-ID: 2052259
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1507890863027425 4.9056e-08  
a 2.804305061852766 1.238e-08 au
q 2.381446463861832 1.3807e-07 au
i 12.7772442673378 6.5376e-06 deg
node 351.0831665027243 1.4706e-05 deg
peri 312.5746336952384 2.3981e-05 deg
M 47.74867563685054 1.7094e-05 deg
tp 2458972.992802666712
(2020-May-03.49280267)
8.1697e-05 TDB
period 1715.285082729594
4.70
1.1359e-05
3.11e-08
d
yr
n .2098776486921458 1.3898e-09 deg/d
Q 3.2271636598437 1.4247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1171  
   data-arc span      14589 days (39.94 yr)  
   first obs. used      1981-03-03  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:51  

Additional Information
 Earth MOID = 1.38576 au 
 Jupiter MOID = 2.15651 au 
 T_jup = 3.271 
[ 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 14.68   n/a MPCxxxxx  
diameter diameter 3.476 km 0.401 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.232   0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52259 (1981 EY47)          Discovered 1981-Mar-03 by Bus, S. J. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EY47 = 2001 OW28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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