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78419 (2002 QX39)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078419
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407707067516155 6.3103e-08  
a 3.420685722885546 3.5892e-08 au
q 2.939153376099787 2.2205e-07 au
i 5.909207407781577 8.4099e-06 deg
node 177.9322055257618 5.1166e-05 deg
peri 245.4446037008105 5.8595e-05 deg
M 254.0699414289866 3.0466e-05 deg
tp 2459880.462404564517
(2022-Oct-27.96240456)
0.00020078 TDB
period 2310.831023274911
6.33
3.637e-05
9.958e-08
d
yr
n .1557881110189562 2.4519e-09 deg/d
Q 3.902218069671306 4.0944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      9571 days (26.20 yr)  
   first obs. used      1993-03-24  
   last obs. used      2019-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58217  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:42  

Additional Information
 Earth MOID = 1.95803 au 
 Jupiter MOID = 1.48214 au 
 T_jup = 3.118 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456845.5 (2014-Jul-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502611980392932 6.3644e-08  
q 2.888967345822155 2.2533e-07 au
tp 2457575.913118431705
(2016-Jul-06.41311843)
0.00016627 TDB
node 178.8182650120825 5.1281e-05 deg
peri 243.9805973485308 5.729e-05 deg
i 5.907071895980208 8.4428e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      9571 days (26.20 yr)  
   first obs. used      1993-03-24  
   last obs. used      2019-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58217  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:42  

Additional Information
 Jupiter MOID = 1.48214 au 
 T_jup = 3.118 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.05060752353131E-15 -1.422803061622076E-14 -6.638017581031434E-12 1.538927779503822E-14 -9.946410185097451E-13 3.876503992133342E-15
q -1.422803061622076E-14 5.077158380950134E-14 2.447576960314833E-11 -2.679988255080831E-14 3.591887105394321E-12 -1.610042066960646E-15
tp -6.638017581031434E-12 2.447576960314833E-11 2.764717480407315E-8 -2.186505595941102E-11 4.268084267922216E-9 4.127728586710541E-12
node 1.538927779503822E-14 -2.679988255080831E-14 -2.186505595941102E-11 2.629788653041435E-9 -2.618838564976108E-9 1.739143741293064E-10
peri -9.946410185097451E-13 3.591887105394321E-12 4.268084267922216E-9 -2.618838564976108E-9 3.282092254141745E-9 -1.724819514306879E-10
i 3.876503992133342E-15 -1.610042066960646E-15 4.127728586710541E-12 1.739143741293064E-10 -1.724819514306879E-10 7.128087914977248E-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 15.1   n/a MPO432334  
diameter diameter 5.228 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78419 (2002 QX39)          Discovered 2002-Aug-27 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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