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78250 (2002 PE9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078250
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1698073018110375 4.9372e-08  
a 3.200419635427568 2.0872e-08 au
q 2.656965012472549 1.5665e-07 au
i 4.680470782221943 5.6638e-06 deg
node 205.1445539974409 4.8366e-05 deg
peri 189.2524279238221 5.1035e-05 deg
M 335.6316338261787 1.3212e-05 deg
tp 2459142.057448956506
(2020-Oct-19.55744896)		 7.6323e-05 TDB
period 2091.263782759824
5.73		 2.0458e-05
5.601e-08		 d
yr
n .1721447112352851 1.684e-09 deg/d
Q 3.743874258382588 2.4417e-08 au
   Orbit Determination Parameters
   # obs. used (total)      658  
   data-arc span      10655 days (29.17 yr)  
   first obs. used      1991-09-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45627  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:06:18  

Additional Information
 Earth MOID = 1.6636 au 
 Jupiter MOID = 1.68919 au 
 T_jup = 3.166 
[ 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 MPO449492  
diameter diameter 5.933 km 0.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78250 (2002 PE9)          Discovered 2002-Aug-05 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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