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JPL Small-Body Database Browser
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(2020 AB2)
Classification: Aten [NEO]          SPK-ID: 3976545
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3263922732827753 0.00069829  
a .8044586414946524 0.00026237 au
q .5418895567352396 0.00073847 au
i 2.60385712404804 0.0079915 deg
node 102.4279034717861 0.0071319 deg
peri 155.8639605192864 0.0030531 deg
M 68.91227798933193 0.14372 deg
tp 2458950.051516664183
(2020-Apr-10.55151666)
0.080535 TDB
period 263.5445312619839
0.72
0.12893
0.000353
d
yr
n 1.365993057325601 0.00066826 deg/d
Q 1.067027726254065 0.000348 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      7 days  
   first obs. used      2020-01-05  
   last obs. used      2020-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .47381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-13 04:53:04  

Additional Information
 Earth MOID = .00792546 au 
 Jupiter MOID = 3.97819 au 
 T_jup = 7.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458854.5 (2020-Jan-06.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3273588397840622 0.00069301  
q .5402077816192992 0.0007282 au
tp 2458950.139616196643
(2020-Apr-10.63961620)
0.081372 TDB
node 102.8604180007617 0.0038569 deg
peri 155.7617528928681 0.0040045 deg
i 2.718232512818743 0.0075297 deg
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      7 days  
   first obs. used      2020-01-05  
   last obs. used      2020-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .47381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-13 04:53:04  

Additional Information
 Jupiter MOID = 3.97819 au 
 T_jup = 7.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.80260435781521E-7 -5.046505029899422E-7 -5.639135149703219E-5 2.671498000481092E-6 2.771394313099254E-6 5.217458696431836E-6
q -5.046505029899422E-7 5.302796737886386E-7 5.925504487584383E-5 -2.807248944171312E-6 -2.912276798938863E-6 -5.48250549497768E-6
tp -5.639135149703219E-5 5.925504487584383E-5 .006621422638690092 -.0003136570634808287 -.0003253680354476603 -.0006125996595633085
node 2.671498000481092E-6 -2.807248944171312E-6 -.0003136570634808287 1.487600285163027E-5 1.543833021726815E-5 2.90372238792756E-5
peri 2.771394313099254E-6 -2.912276798938863E-6 -.0003253680354476603 1.543833021726815E-5 1.603583192161953E-5 3.013057578653914E-5
i 5.217458696431836E-6 -5.48250549497768E-6 -.0006125996595633085 2.90372238792756E-5 3.013057578653914E-5 5.669568428038931E-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 27.0   .2898 E2020-AC3 autocmod 2.8

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