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(2020 AD1)
Classification: Apollo [NEO]          SPK-ID: 3973543
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1421027206035465 9.1448e-05  
a 1.042844036653093 4.4013e-05 au
q .8946530618795038 5.7609e-05 au
i 3.834505852876417 0.0026805 deg
node 98.60100629171122 0.0013747 deg
peri 96.11957995681475 0.0024938 deg
M 246.6409460276314 0.01358 deg
tp 2459322.984513641454
(2021-Apr-18.48451364)
0.022427 TDB
period 388.9801772840428
1.06
0.024625
6.742e-05
d
yr
n .9254970330714802 5.859e-05 deg/d
Q 1.191035011426682 5.0267e-05 au
  Orbit Determination Parameters
   # obs. used (total)      46  
   data-arc span      21 days  
   first obs. used      2019-12-28  
   last obs. used      2020-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .32503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:13:24  

Additional Information
 Earth MOID = .00514648 au 
 Jupiter MOID = 3.76416 au 
 T_jup = 5.874 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458851.5 (2020-Jan-03.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1417194613463387 9.1951e-05  
q .8948814872700378 5.7791e-05 au
tp 2458934.294535919003
(2020-Mar-25.79453592)
0.0027846 TDB
node 99.12799411559618 0.00033277 deg
peri 95.86370393373102 0.0029759 deg
i 3.910448665191556 0.002584 deg
  Orbit Determination Parameters
   # obs. used (total)      46  
   data-arc span      21 days  
   first obs. used      2019-12-28  
   last obs. used      2020-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .32503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:13:24  

Additional Information
 Jupiter MOID = 3.76416 au 
 T_jup = 5.874 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.455026025958465E-9 -5.313905521018956E-9 -2.55914842715306E-7 3.054625659174796E-8 2.734402855033399E-7 2.375914227204932E-7
q -5.313905521018956E-9 3.339800267108543E-9 1.608204681853289E-7 -1.91980312681082E-8 -1.718810889117147E-7 -1.493237175829055E-7
tp -2.55914842715306E-7 1.608204681853289E-7 7.75389399557722E-6 -9.24352015046375E-7 -8.266570463310525E-6 -7.190673982446388E-6
node 3.054625659174796E-8 -1.91980312681082E-8 -9.24352015046375E-7 1.107351380387422E-7 9.8771105540325E-7 8.586078594625541E-7
peri 2.734402855033399E-7 -1.718810889117147E-7 -8.266570463310525E-6 9.8771105540325E-7 8.856172151766209E-6 7.684224693352828E-6
i 2.375914227204932E-7 -1.493237175829055E-7 -7.190673982446388E-6 8.586078594625541E-7 7.684224693352828E-6 6.67699199549004E-6

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 26.3   .18937 E2020A92 autocmod 2.8

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