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JPL Small-Body Database Browser
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(2020 DJ2)
Classification: Apollo [NEO]          SPK-ID: 3991735
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3541382811168708 0.00028789  
a 1.495232110825866 0.0006598 au
q .9657131812272434 6.863e-06 au
i 18.61265727208893 0.0097245 deg
node 150.3501757056914 0.00012931 deg
peri 332.2372557141093 0.0049695 deg
M 67.27946219278489 0.047971 deg
tp 2458875.692305715055
(2020-Jan-27.19230571)		 0.006543 TDB
period 667.8229652584633
1.83		 0.44203
0.00121		 d
yr
n .5390650198150515 0.00035681 deg/d
Q 2.024751040424488 0.00089346 au
   Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      1 day  
   first obs. used      2020-02-20  
   last obs. used      2020-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .41139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 11:53:23  

Additional Information
 Earth MOID = .00660507 au 
 Jupiter MOID = 3.07217 au 
 T_jup = 4.430 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458900.5 (2020-Feb-21.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3548892112111615 0.00028723  
q .9655922180584736 6.7831e-06 au
tp 2458875.698838512820
(2020-Jan-27.19883851)		 0.0065372 TDB
node 150.358888907538 0.00011368 deg
peri 332.2210199360877 0.0049943 deg
i 18.63048644549152 0.0096989 deg
   Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      1 day  
   first obs. used      2020-02-20  
   last obs. used      2020-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .41139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 11:53:23  

Additional Information
 Jupiter MOID = 3.07217 au 
 T_jup = 4.430 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.250319369276069E-8 -1.2094302598643E-9 1.821595336869794E-6 3.158037518006152E-8 1.304328174274551E-6 2.774734581372537E-6
q -1.2094302598643E-9 4.601011176834687E-11 -1.828269739019572E-8 -6.012354314499351E-10 -8.074654030015246E-9 -3.637656072077518E-8
tp 1.821595336869794E-6 -1.828269739019572E-8 4.273509361576042E-5 6.56520855312769E-7 3.209582720553764E-5 6.251798431898603E-5
node 3.158037518006152E-8 -6.012354314499351E-10 6.56520855312769E-7 1.292224810557051E-8 4.455478064917506E-7 1.041546645909438E-6
peri 1.304328174274551E-6 -8.074654030015246E-9 3.209582720553764E-5 4.455478064917506E-7 2.494348717126028E-5 4.551921501298552E-5
i 2.774734581372537E-6 -3.637656072077518E-8 6.251798431898603E-5 1.041546645909438E-6 4.551921501298552E-5 9.406915311116007E-5

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.3   .33789 3 autocmod 2.8

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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