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JPL Small-Body Database Browser
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(2020 AB)
Classification: Apollo [NEO]          SPK-ID: 3968759
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4114650413350391 9.3191e-07  
a 1.67605979111709 2.5116e-06 au
q .9864197798850994 1.0345e-07 au
i 4.846754583749466 8.4142e-06 deg
node 284.0248786873603 1.1503e-05 deg
peri 157.4499252840901 3.5945e-05 deg
M 75.6777687718683 0.00016375 deg
tp 2458833.890981325209
(2019-Dec-16.39098133)
3.0629e-05 TDB
period 792.5609818615716
2.17
0.0017815
4.877e-06
d
yr
n .4542237231442179 1.021e-06 deg/d
Q 2.36569980234908 3.545e-06 au
  Orbit Determination Parameters
   # obs. used (total)      79  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      20 days  
   first obs. used      2019-12-30  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .50668  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-21 05:23:53  

Additional Information
 Earth MOID = .0171372 au 
 Jupiter MOID = 2.8989 au 
 T_jup = 4.135 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458855.5 (2020-Jan-07.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4119822438404609 9.3061e-07  
q .9863072046281764 1.0289e-07 au
tp 2458833.891818698438
(2019-Dec-16.39181870)
3.0569e-05 TDB
node 284.0382205209413 1.1544e-05 deg
peri 157.4232387340328 3.5797e-05 deg
i 4.850031712492608 8.4118e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      79  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      20 days  
   first obs. used      2019-12-30  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .50668  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-21 05:23:53  

Additional Information
 Jupiter MOID = 2.8989 au 
 T_jup = 4.135 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.660375824487865E-13 -7.842798107760526E-14 -1.482850215782707E-11 -6.475848398290655E-12 -1.840728942155466E-11 4.319135316554628E-12
q -7.842798107760526E-14 1.058698355818477E-14 2.875909821373965E-12 7.80342354396352E-13 3.338660822492845E-12 -3.565200248969944E-13
tp -1.482850215782707E-11 2.875909821373965E-12 9.344537523762882E-10 1.95898711930756E-10 1.058813526912294E-9 -6.329591368989893E-11
node -6.475848398290655E-12 7.80342354396352E-13 1.95898711930756E-10 1.332584191729716E-10 1.54762555801401E-10 -5.947908016120235E-11
peri -1.840728942155466E-11 3.338660822492845E-12 1.058813526912294E-9 1.54762555801401E-10 1.281427598372131E-9 -5.236825422000901E-11
i 4.319135316554628E-12 -3.565200248969944E-13 -6.329591368989893E-11 -5.947908016120235E-11 -5.236825422000901E-11 7.075857840513879E-11

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 26.0   .33785 E2020A86 autocmod 2.8

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