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78253 (2002 PY12)
Classification: Main-belt Asteroid          SPK-ID: 2078253
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0400173947046624 3.9368e-08  
a 3.197153614591865 2.6365e-08 au
q 3.069211856465305 1.3467e-07 au
i 10.24662291204647 5.5749e-06 deg
node 167.3655844538721 2.3491e-05 deg
peri 274.4702559599141 7.3421e-05 deg
M 281.996074185384 6.95e-05 deg
tp 2459452.936508127555
(2021-Aug-26.43650813)
0.00040365 TDB
period 2088.063404821618
5.72
2.5829e-05
7.072e-08
d
yr
n .1724085576945182 2.1327e-09 deg/d
Q 3.325095372718426 2.742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1996-06-18  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:33  

Additional Information
 Earth MOID = 2.10796 au 
 Jupiter MOID = 1.77657 au 
 T_jup = 3.169 
[ 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 14.5   n/a MPO449492  
diameter diameter 4.661 km 1.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78253 (2002 PY12)          Discovered 2002-Aug-05 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PY12 = 2000 EZ204 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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