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JPL Small-Body Database Browser
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(2020 DJ)
Classification: Apollo [NEO]          SPK-ID: 3991612
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2234942533326776 2.104e-05  
a 1.29924152548838 3.7543e-05 au
q 1.008868510850546 1.8166e-06 au
i 4.088375002433555 0.00033662 deg
node 339.628276901315 7.7901e-05 deg
peri 164.0052077639155 0.00013453 deg
M 71.50838472149321 0.00325 deg
tp 2458893.054623199069
(2020-Feb-13.55462320)
0.00022769 TDB
period 540.920282271586
1.48
0.023446
6.419e-05
d
yr
n .6655324486783631 2.8847e-05 deg/d
Q 1.589614540126215 4.5934e-05 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      76 days  
   first obs. used      2019-12-31  
   last obs. used      2020-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-08 05:53:47  

Additional Information
 Earth MOID = .0234706 au 
 Jupiter MOID = 3.41757 au 
 T_jup = 4.977 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458873.5 (2020-Jan-25.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244305066118605 2.0868e-05  
q 1.008388620443615 1.9074e-06 au
tp 2458892.610464403921
(2020-Feb-13.11046440)
0.0003464 TDB
node 339.8728384750903 2.9094e-05 deg
peri 163.2523803789329 0.00032697 deg
i 4.057109204573831 0.00034241 deg
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      76 days  
   first obs. used      2019-12-31  
   last obs. used      2020-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-08 05:53:47  

Additional Information
 Jupiter MOID = 3.41757 au 
 T_jup = 4.977 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.35455551231666E-10 3.979746744929244E-11 7.207135823956349E-9 1.266352393198686E-10 6.753446371170532E-9 7.144706205720379E-9
q 3.979746744929244E-11 3.638027255257104E-12 6.583142247958467E-10 1.19255571554431E-11 6.164665700967633E-10 6.529683020072294E-10
tp 7.207135823956349E-9 6.583142247958467E-10 1.199927314074342E-7 1.828977259184461E-9 1.127895398044219E-7 1.183041724696949E-7
node 1.266352393198686E-10 1.19255571554431E-11 1.828977259184461E-9 8.464873582110926E-10 8.696992949840081E-10 1.994272588686651E-9
peri 6.753446371170532E-9 6.164665700967633E-10 1.127895398044219E-7 8.696992949840081E-10 1.069074734842153E-7 1.109454758519947E-7
i 7.144706205720379E-9 6.529683020072294E-10 1.183041724696949E-7 1.994272588686651E-9 1.109454758519947E-7 1.172477189909035E-7

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 26.095   .67887 7 autocmod 2.8

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