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39887 (1998 ED13)
Classification: Main-belt Asteroid          SPK-ID: 2039887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613055750339286 3.8846e-08  
a 2.272002682384704 8.837e-09 au
q 1.905515983224011 8.7163e-08 au
i 3.488268307827006 4.1186e-06 deg
node 52.10685869524388 7.4084e-05 deg
peri 345.3204551069029 7.534e-05 deg
M 297.9786357546376 1.6421e-05 deg
tp 2459216.001600862061
(2021-Jan-01.50160086)
5.7762e-05 TDB
period 1250.868587853466
3.42
7.298e-06
1.998e-08
d
yr
n .2878000163212769 1.6791e-09 deg/d
Q 2.638489381545396 1.0263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1331  
   data-arc span      20620 days (56.45 yr)  
   first obs. used      1962-11-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:12:07  

Additional Information
 Earth MOID = .913137 au 
 Jupiter MOID = 2.77149 au 
 T_jup = 3.592 
[ 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 14.5   n/a MPO474256  
diameter diameter 3.361 km 0.644 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.288   0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39887 (1998 ED13)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 ED13 = 1962 WT = 1986 VY6 = 2000 SY160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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