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78387 (2002 PD156)
Classification: Main-belt Asteroid          SPK-ID: 2078387
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05543515752222426 4.9336e-08  
a 2.740046129673269 1.6641e-08 au
q 2.58815124085667 1.3059e-07 au
i 4.524437589586483 5.9323e-06 deg
node 331.9973640509605 5.6099e-05 deg
peri 243.4612035348657 7.9056e-05 deg
M 69.69597107908493 5.2657e-05 deg
tp 2458679.769389295024
(2019-Jul-15.26938930)		 0.00024326 TDB
period 1656.667065055654
4.54		 1.5092e-05
4.132e-08		 d
yr
n .2173037706812299 1.9797e-09 deg/d
Q 2.891941018489867 1.7564e-08 au
   Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      9017 days (24.69 yr)  
   first obs. used      1996-02-12  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58298  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:04  

Additional Information
 Earth MOID = 1.58539 au 
 Jupiter MOID = 2.09305 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457109.5 (2015-Mar-28.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05384613767629523 4.9897e-08  
q 2.59011264084469 1.317e-07 au
tp 2457019.659923971220
(2014-Dec-28.15992397)		 0.00025302 TDB
node 332.0833931408176 5.6152e-05 deg
peri 242.2474992378632 7.9845e-05 deg
i 4.5232386269563 5.9311e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      9017 days (24.69 yr)  
   first obs. used      1996-02-12  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58298  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:04  

Additional Information
 Jupiter MOID = 2.09305 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.489685274341011E-15 -6.53118215886862E-15 -5.948751144166006E-12 2.268301851566934E-14 -1.356909612071117E-12 -7.970859929066543E-16
q -6.53118215886862E-15 1.73443056367668E-14 1.484436507975628E-11 -5.803687550338757E-14 3.392502550686155E-12 2.219943195099431E-15
tp -5.948751144166006E-12 1.484436507975628E-11 6.402090690483968E-8 -1.338275434723406E-10 1.438127074327041E-8 1.88773015860577E-12
node 2.268301851566934E-14 -5.803687550338757E-14 -1.338275434723406E-10 3.153027540959415E-9 -3.172507957949081E-9 6.63115322460631E-11
peri -1.356909612071117E-12 3.392502550686155E-12 1.438127074327041E-8 -3.172507957949081E-9 6.375192319250408E-9 -6.571347091464357E-11
i -7.970859929066543E-16 2.219943195099431E-15 1.88773015860577E-12 6.63115322460631E-11 -6.571347091464357E-11 3.517764901581661E-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 15.4   n/a MPO296677  
diameter diameter 3.912 km 0.903 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78387 (2002 PD156)          Discovered 2002-Aug-08 by Hoenig, S. F. at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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