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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621914281425038 3.894e-08  
a 2.271712566805531 8.5431e-09 au
q 1.903260261266069 8.7566e-08 au
i 3.491354292540092 4.1221e-06 deg
node 52.14199606103116 7.3976e-05 deg
peri 345.1824532294407 7.5216e-05 deg
M 183.0565990916548 1.5966e-05 deg
tp 2459215.195971813311
(2020-Dec-31.69597181)
5.7407e-05 TDB
period 1250.629007449778
3.42
7.0547e-06
1.931e-08
d
yr
n .2878551495731692 1.6238e-09 deg/d
Q 2.640164872344993 9.9287e-09 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 = .910249 au 
 Jupiter MOID = 2.76927 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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