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78879 (2003 RK15)
Classification: Main-belt Asteroid          SPK-ID: 2078879
[ 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374950372254225 5.3068e-08  
a 3.108461682964681 1.9579e-08 au
q 2.681063628151652 1.6456e-07 au
i 15.30039479622024 6.1799e-06 deg
node 222.6611434212165 1.5007e-05 deg
peri 169.2265096713129 2.2421e-05 deg
M 346.4456239952748 1.5348e-05 deg
tp 2459075.869169990558
(2020-Aug-14.36916999)		 8.5326e-05 TDB
period 2001.781652445094
5.48		 1.8912e-05
5.178e-08		 d
yr
n .1798397939956513 1.6991e-09 deg/d
Q 3.535859737777709 2.2271e-08 au
   Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      8946 days (24.49 yr)  
   first obs. used      1996-05-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49166  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:07:07  

Additional Information
 Earth MOID = 1.68925 au 
 Jupiter MOID = 1.89777 au 
 T_jup = 3.151 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457563.5 (2016-Jun-24.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385029353892929 5.2673e-08  
q 2.679040808987514 1.6245e-07 au
tp 2457054.947693926703
(2015-Feb-01.44769393)		 8.5768e-05 TDB
node 222.783322202126 1.503e-05 deg
peri 166.5480651347487 2.2307e-05 deg
i 15.27863725794305 6.1785e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      8946 days (24.49 yr)  
   first obs. used      1996-05-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49166  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:07:07  

Additional Information
 Jupiter MOID = 1.89777 au 
 T_jup = 3.151 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.774496033000785E-15 -8.512560947570824E-15 9.54279552100522E-13 -1.870225766538591E-14 2.493824417550792E-13 2.010861290404569E-16
q -8.512560947570824E-15 2.639036903744131E-14 -3.171289906977182E-12 5.908325346490048E-14 -7.983495899610194E-13 9.51579390944576E-16
tp 9.54279552100522E-13 -3.171289906977182E-12 7.356172927422417E-9 -9.170546919920244E-12 1.418667316615285E-9 9.88330245757043E-12
node -1.870225766538591E-14 5.908325346490048E-14 -9.170546919920244E-12 2.259151239782468E-10 -2.200712845830729E-10 -1.79460504636568E-12
peri 2.493824417550792E-13 -7.983495899610194E-13 1.418667316615285E-9 -2.200712845830729E-10 4.97587187142439E-10 3.507703820309143E-12
i 2.010861290404569E-16 9.51579390944576E-16 9.88330245757043E-12 -1.79460504636568E-12 3.507703820309143E-12 3.81743018953062E-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 14.3   n/a MPO400736  
diameter diameter 4.521 km 0.371 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78879 (2003 RK15)          Discovered 2003-Sep-15 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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