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(2020 AB2)
Classification: Aten [NEO]          SPK-ID: 3976545
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3262251033510039 0.00070903  
a .803881844587182 0.00021488 au
q .541635406754733 0.00071476 au
i 2.607052456467296 0.0074381 deg
node 102.5745273487004 0.020606 deg
peri 155.8159536674255 0.022367 deg
M 250.0753861052514 0.39028 deg
tp 2459476.885775436557
(2021-Sep-19.38577544)
0.31764 TDB
period 263.2611399014691
0.72
0.10555
0.000289
d
yr
n 1.367463500821798 0.00054828 deg/d
Q 1.066128282419631 0.00028498 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .4738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:13:27  

Additional Information
 Earth MOID = .00782837 au 
 Jupiter MOID = 3.97703 au 
 T_jup = 7.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458854.5 (2020-Jan-06.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3273587677375729 0.00069301  
q .5402078581201523 0.0007282 au
tp 2458950.139624479178
(2020-Apr-10.63962448)
0.081372 TDB
node 102.8604169094444 0.0038569 deg
peri 155.7617527841236 0.0040045 deg
i 2.718231688684831 0.0075296 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .4738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:13:27  

Additional Information
 Jupiter MOID = 3.97703 au 
 T_jup = 7.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.802599449185924E-7 -5.046500360350445E-7 -5.639130009374274E-5 2.671496269511122E-6 2.771390851646141E-6 5.217452434239906E-6
q -5.046500360350445E-7 5.302792344359907E-7 5.925499659634946E-5 -2.807247396962642E-6 -2.912273443472145E-6 -5.48249944527475E-6
tp -5.639130009374274E-5 5.925499659634946E-5 .006621417334876947 -.0003136568948965305 -.0003253676649820872 -.000612598991988245
node 2.671496269511122E-6 -2.807247396962642E-6 -.0003136568948965305 1.487599879094421E-5 1.543831673249756E-5 2.903719990286442E-5
peri 2.771390851646141E-6 -2.912273443472145E-6 -.0003253676649820872 1.543831673249756E-5 1.603580830600007E-5 3.013053280673324E-5
i 5.217452434239906E-6 -5.48249944527475E-6 -.000612598991988245 2.903719990286442E-5 3.013053280673324E-5 5.66956061415249E-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

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