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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 ]

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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01699991101508584 3.8755e-08  
a 2.733332713446562 1.6514e-08 au
q 2.686866300543348 1.0602e-07 au
i 11.26973237554006 4.8865e-06 deg
node 345.7553670112009 1.6718e-05 deg
peri 130.1017350616809 0.00013312 deg
M 233.8556983942763 0.00013355 deg
tp 2459778.865410087435
(2022-Jul-18.36541009)		 0.00061427 TDB
period 1650.582269520679
4.52		 1.4959e-05
4.096e-08		 d
yr
n .2181048510260214 1.9766e-09 deg/d
Q 2.779799126349777 1.6795e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      8135 days (22.27 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47887  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:37  

Additional Information
 Earth MOID = 1.70792 au 
 Jupiter MOID = 2.21534 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457745.5 (2016-Dec-23.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01690807332448973 3.6427e-08  
q 2.688052899018981 1.0038e-07 au
tp 2458092.306778978718
(2017-Dec-04.80677898)		 0.00064285 TDB
node 345.9062500628725 1.6742e-05 deg
peri 122.3097831910535 0.00014055 deg
i 11.26058928127644 4.8823e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      8135 days (22.27 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47887  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:37  

Additional Information
 Jupiter MOID = 2.21534 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.326897944669411E-15 -3.60815387723105E-15 8.675756376554808E-12 4.893448877756189E-16 1.908268313804573E-12 -1.233559289187386E-15
q -3.60815387723105E-15 1.007610427995789E-14 -1.990218945259697E-11 -1.053139751500973E-15 -4.400468715653337E-12 3.860960345369469E-15
tp 8.675756376554808E-12 -1.990218945259697E-11 4.13256773199069E-7 3.307785030120349E-11 8.971640076898944E-8 -6.152342394038564E-12
node 4.893448877756189E-16 -1.053139751500973E-15 3.307785030120349E-11 2.802985929663509E-10 -2.672558706740737E-10 -8.357862848709231E-12
peri 1.908268313804573E-12 -4.400468715653337E-12 8.971640076898944E-8 -2.672558706740737E-10 1.975442260107147E-8 6.827745362982641E-12
i -1.233559289187386E-15 3.860960345369469E-15 -6.152342394038564E-12 -8.357862848709231E-12 6.827745362982641E-12 2.383654440296602E-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

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