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78245 (2002 PE3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078245
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1124486668264212 6.8434e-08  
a 3.218952138938152 2.2425e-08 au
q 2.8569852623365 2.2221e-07 au
i 13.41947625423736 6.577e-06 deg
node 210.0562746664621 1.6678e-05 deg
peri 188.325524637981 2.5347e-05 deg
M 3.169579452077473 1.7536e-05 deg
tp 2459181.927543579716
(2020-Nov-28.42754358)
0.00010278 TDB
period 2109.454712334165
5.78
2.2043e-05
6.035e-08
d
yr
n .170660217493672 1.7833e-09 deg/d
Q 3.580919015539805 2.4946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      9326 days (25.53 yr)  
   first obs. used      1995-07-02  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:19  

Additional Information
 Earth MOID = 1.86368 au 
 Jupiter MOID = 1.85234 au 
 T_jup = 3.137 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457697.5 (2016-Nov-05.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .112582324790463 6.8001e-08  
q 2.858866985485628 2.1915e-07 au
tp 2457046.363089328590
(2015-Jan-23.86308933)
0.00010698 TDB
node 210.1924808864229 1.663e-05 deg
peri 184.7341328153445 2.5424e-05 deg
i 13.42990186625148 6.5862e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      9326 days (25.53 yr)  
   first obs. used      1995-07-02  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:19  

Additional Information
 Jupiter MOID = 1.85234 au 
 T_jup = 3.137 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.624169647014113E-15 -1.484399876086225E-14 -1.315225669842178E-14 -1.432379618489701E-14 1.696660969811513E-13 -4.294212282400469E-15
q -1.484399876086225E-14 4.802818647869854E-14 -4.790970196406923E-13 4.300799166554002E-14 -6.115974947697577E-13 1.525562596974459E-14
tp -1.315225669842178E-14 -4.790970196406923E-13 1.144408604165338E-8 8.041365443504133E-12 2.044528459107974E-9 9.042187217388199E-12
node -1.432379618489701E-14 4.300799166554002E-14 8.041365443504133E-12 2.765482668565793E-10 -2.682038652044599E-10 4.925725016333652E-12
peri 1.696660969811513E-13 -6.115974947697577E-13 2.044528459107974E-9 -2.682038652044599E-10 6.463684039547263E-10 -3.273793620291531E-12
i -4.294212282400469E-15 1.525562596974459E-14 9.042187217388199E-12 4.925725016333652E-12 -3.273793620291531E-12 4.337821642632826E-11

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 14.75   n/a E2021B10  
diameter diameter 6.100 km 0.512 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78245 (2002 PE3)          Discovered 2002-Aug-03 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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