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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01361387927843298 4.232e-08  
a 2.910218153709586 2.0681e-08 au
q 2.87059879509108 1.2616e-07 au
i 3.378988804868666 5.9214e-06 deg
node 136.5011810914124 0.00012693 deg
peri 125.3149700541437 0.00035698 deg
M 88.09664555035931 0.00033464 deg
tp 2458556.744635267117
(2019-Mar-14.24463527)
0.0016855 TDB
period 1813.371329927853
4.96
1.933e-05
5.292e-08
d
yr
n .1985252518657186 2.1162e-09 deg/d
Q 2.949837512328093 2.0963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      9605 days (26.30 yr)  
   first obs. used      1993-03-20  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:50:39  

Additional Information
 Earth MOID = 1.85629 au 
 Jupiter MOID = 2.03123 au 
 T_jup = 3.281 
[ 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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