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78326 (2002 PQ82)
Classification: Main-belt Asteroid          SPK-ID: 2078326
[ 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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01699991240935236 3.8676e-08  
a 2.733332713158712 1.6511e-08 au
q 2.686866296449396 1.0578e-07 au
i 11.26973236807316 4.8775e-06 deg
node 345.7553670778069 1.6709e-05 deg
peri 130.1017362737257 0.00013306 deg
M 233.8556971259229 0.0001335 deg
tp 2459778.865415811410
(2022-Jul-18.36541581)		 0.00061402 TDB
period 1650.582269259942
4.52		 1.4956e-05
4.095e-08		 d
yr
n .2181048510604747 1.9763e-09 deg/d
Q 2.779799129868027 1.6792e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      8135 days (22.27 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:14  

Additional Information
 Earth MOID = 1.70792 au 
 Jupiter MOID = 2.21534 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457747.5 (2016-Dec-25.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01690739883532014 3.6354e-08  
q 2.688051287280604 1.0017e-07 au
tp 2458092.324151708772
(2017-Dec-04.82415171)		 0.00064249 TDB
node 345.9062399759853 1.6734e-05 deg
peri 122.3136810367185 0.00014046 deg
i 11.26058729360651 4.8733e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      8135 days (22.27 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:14  

Additional Information
 Jupiter MOID = 2.21534 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.321631155314428E-15 -3.593221247253497E-15 8.63135762308323E-12 4.986877816179683E-16 1.898274105904727E-12 -1.229185511541506E-15
q -3.593221247253497E-15 1.003373583018798E-14 -1.977434833324222E-11 -1.071536863780765E-15 -4.371702348547847E-12 3.846098714566058E-15
tp 8.63135762308323E-12 -1.977434833324222E-11 4.127881549636857E-7 3.388292334759239E-11 8.961034967809642E-8 -6.516471304347406E-12
node 4.986877816179683E-16 -1.071536863780765E-15 3.388292334759239E-11 2.800101175437792E-10 -2.667984268523947E-10 -8.263759767903545E-12
peri 1.898274105904727E-12 -4.371702348547847E-12 8.961034967809642E-8 -2.667984268523947E-10 1.973015742162393E-8 6.656337492662351E-12
i -1.229185511541506E-15 3.846098714566058E-15 -6.516471304347406E-12 -8.263759767903545E-12 6.656337492662351E-12 2.374892531395385E-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 14.36   n/a E2020-QM9  
diameter diameter 3.344 km 0.804 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.322   0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78326 (2002 PQ82)          Discovered 2002-Aug-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PQ82 = 2000 AF230 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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