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78306 (2002 PY61)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181756910263276 8.7479e-08  
a 3.225118021114631 2.8494e-08 au
q 2.638930534362425 2.6573e-07 au
i 10.98002207261819 3.9284e-06 deg
node 128.7017077339144 3.3064e-05 deg
peri 235.81888011 3.5791e-05 deg
M 27.97366000993218 1.0692e-05 deg
tp 2459036.114451049996
(2020-Jul-05.61445105)
6.3086e-05 TDB
period 2115.51858430358
5.79
2.8036e-05
7.676e-08
d
yr
n .170171041120166 2.2552e-09 deg/d
Q 3.811305507866838 3.3673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      8054 days (22.05 yr)  
   first obs. used      1999-01-14  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48141  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:08  

Additional Information
 Earth MOID = 1.6532 au 
 Jupiter MOID = 1.71781 au 
 T_jup = 3.133 
[ 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 14.63   n/a MPCxxxxx  
diameter diameter 6.592 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78306 (2002 PY61)          Discovered 2002-Aug-08 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PY61 = 1999 AB31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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