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JPL Small-Body Database Browser
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136855 (1998 EE5)
Classification: Main-belt Asteroid          SPK-ID: 2136855
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1448315378305642 4.5278e-08  
a 3.193184849276729 3.0349e-08 au
q 2.730710976978722 1.486e-07 au
i 4.93843217419713 6.104e-06 deg
node 329.0120307974735 6.2499e-05 deg
peri 331.5602713217723 6.6029e-05 deg
M 178.3767577975867 2.1403e-05 deg
tp 2457967.809261924459
(2017-Aug-02.30926192)
0.00012208 TDB
period 2084.176606287798
5.71
2.9713e-05
8.135e-08
d
yr
n .1727300838680888 2.4625e-09 deg/d
Q 3.655658721574737 3.4745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      7979 days (21.85 yr)  
   first obs. used      1998-03-01  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58708  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:42:44  

Additional Information
 Earth MOID = 1.71655 au 
 Jupiter MOID = 1.59055 au 
 T_jup = 3.174 
[ 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 15.0   n/a MPO417724  
diameter diameter 4.518 km 1.610 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136855 (1998 EE5)          Discovered 1998-Mar-01 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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