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JPL Small-Body Database Browser
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35470 (1998 EC8)
Classification: Main-belt Asteroid          SPK-ID: 2035470
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01444910588548385 4.0393e-08  
a 2.913557074910258 2.175e-08 au
q 2.871458780231479 1.2163e-07 au
i 3.376722458877992 5.9483e-06 deg
node 136.5168441170939 0.00012902 deg
peri 128.6988965212005 0.00034852 deg
M 5.35555252835374 0.00032471 deg
tp 2458573.476879081067
(2019-Mar-30.97687908)
0.0016384 TDB
period 1816.4929723519
4.97
2.034e-05
5.569e-08
d
yr
n .1981840863022392 2.2192e-09 deg/d
Q 2.955655369589036 2.2064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      9245 days (25.31 yr)  
   first obs. used      1993-03-20  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56864  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:15:07  

Additional Information
 Earth MOID = 1.85635 au 
 Jupiter MOID = 2.03004 au 
 T_jup = 3.280 
[ 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 14.9   n/a MPO263642  
diameter diameter 3.887 km 1.453 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.117   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35470 (1998 EC8)          Discovered 1998-Mar-02 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EC8 = 2000 QD140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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