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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01719856123030587 3.8602e-08  
a 2.732552775354525 1.6251e-08 au
q 2.685556799132548 1.0578e-07 au
i 11.27074238595639 4.8486e-06 deg
node 345.7568249078652 1.6665e-05 deg
peri 130.9085698593758 0.00012995 deg
M 275.8188078732346 0.00013047 deg
tp 2459782.301432185001
(2022-Jul-21.80143218)
0.0005992 TDB
period 1649.875846108867
4.52
1.4718e-05
4.03e-08
d
yr
n .2181982364606636 1.9465e-09 deg/d
Q 2.779548751576502 1.6531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      8313 days (22.76 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:00:52  

Additional Information
 Earth MOID = 1.70723 au 
 Jupiter MOID = 2.21462 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457770.5 (2017-Jan-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01689677327741991 3.6126e-08  
q 2.688032206948772 9.9729e-08 au
tp 2458092.556666264744
(2017-Dec-05.05666626)
0.00063707 TDB
node 345.9060710261858 1.669e-05 deg
peri 122.3658073145164 0.00013932 deg
i 11.26055772874545 4.844e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      8313 days (22.76 yr)  
   first obs. used      1998-10-12  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:00:52  

Additional Information
 Jupiter MOID = 2.21462 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.305079657799863E-15 -3.555201693213368E-15 8.291467208387728E-12 4.219966565087957E-16 1.825304290368693E-12 -1.161077729986815E-15
q -3.555201693213368E-15 9.945861831232504E-15 -1.900152916327648E-11 -8.470962181079106E-16 -4.205773962923544E-12 3.66729412260506E-15
tp 8.291467208387728E-12 -1.900152916327648E-11 4.058600397747768E-7 3.488005780736255E-11 8.81232912142102E-8 -6.215222359882915E-12
node 4.219966565087957E-16 -8.470962181079106E-16 3.488005780736255E-11 2.785635253940857E-10 -2.651642987067901E-10 -7.62093324059814E-12
peri 1.825304290368693E-12 -4.205773962923544E-12 8.81232912142102E-8 -2.651642987067901E-10 1.940958084614063E-8 6.090200305877387E-12
i -1.161077729986815E-15 3.66729412260506E-15 -6.215222359882915E-12 -7.62093324059814E-12 6.090200305877387E-12 2.346476452440888E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

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