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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3541874106950541 0.00028354  
a 1.495342804461845 0.00065039 au
q .9657112084480234 6.253e-06 au
i 18.61402610699329 0.0096299 deg
node 150.3502006871347 0.00012629 deg
peri 332.2375654440257 0.0049366 deg
M 67.27159621433856 0.047321 deg
tp 2458875.693039499674
(2020-Jan-27.19303950)
0.0065013 TDB
period 667.8971261059596
1.83
0.43575
0.001193
d
yr
n .5390051640121704 0.00035166 deg/d
Q 2.024974400475666 0.00088075 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   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      .41234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:47:34  

Additional Information
 Earth MOID = .00660547 au 
 Jupiter MOID = 3.07197 au 
 T_jup = 4.430 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458900.5 (2020-Feb-21.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3549382509671912 0.00028289  
q .9655902658331298 6.1728e-06 au
tp 2458875.699571982193
(2020-Jan-27.19957198)
0.0064955 TDB
node 150.3589113910396 0.00011082 deg
peri 332.2213342162456 0.0049615 deg
i 18.63185146859229 0.0096046 deg
  Orbit Determination Parameters
   # obs. used (total)      88  
   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      .41234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-11 07:47:34  

Additional Information
 Jupiter MOID = 3.07197 au 
 T_jup = 4.430 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.002589812085031E-8 -1.086355280619118E-9 1.79197875589225E-6 3.034728710243841E-8 1.298170559174917E-6 2.707909787838881E-6
q -1.086355280619118E-9 3.810307724370337E-11 -1.739477861347847E-8 -5.330657255088286E-10 -8.517408219595823E-9 -3.323033296987174E-8
tp 1.79197875589225E-6 -1.739477861347847E-8 4.219186706035363E-5 6.440240139913003E-7 3.177927340212622E-5 6.166161522222346E-5
node 3.034728710243841E-8 -5.330657255088286E-10 6.440240139913003E-7 1.228171006800146E-8 4.453650561609802E-7 1.008941824949314E-6
peri 1.298170559174917E-6 -8.517408219595823E-9 3.177927340212622E-5 4.453650561609802E-7 2.461623214903521E-5 4.527971841269596E-5
i 2.707909787838881E-6 -3.323033296987174E-8 6.166161522222346E-5 1.008941824949314E-6 4.527971841269596E-5 9.224818887559415E-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 26.287   .33876 4 autocmod 2.8

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