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78333 (2002 PR85)
Classification: Main-belt Asteroid          SPK-ID: 2078333
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861830721091314 3.2691e-08  
a 2.690091851557817 1.1298e-08 au
q 2.189242286379042 8.6989e-08 au
i 12.49535546042331 4.2764e-06 deg
node 215.7408733228644 1.7332e-05 deg
peri 88.38216554712839 2.1973e-05 deg
M 6.402246762644103 1.1736e-05 deg
tp 2458971.839814382902
(2020-May-02.33981438)
5.2563e-05 TDB
period 1611.569688684419
4.41
1.0152e-05
2.779e-08
d
yr
n .2233846929038984 1.4072e-09 deg/d
Q 3.190941416736593 1.3401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      9503 days (26.02 yr)  
   first obs. used      1994-10-26  
   last obs. used      2020-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:15  

Additional Information
 Earth MOID = 1.21791 au 
 Jupiter MOID = 2.16846 au 
 T_jup = 3.314 
[ 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 14.8   n/a MPO436330  
diameter diameter 3.164 km 0.495 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.255   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78333 (2002 PR85)          Discovered 2002-Aug-12 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PR85 = 1998 QL76 = 2001 FY118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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