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(2020 ND)
Classification: Apollo [NEO, PHA]          SPK-ID: 54017784
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5886279454732476 1.2284e-05  
a 2.411672704102431 7.1424e-05 au
q .9920947551327058 2.7759e-07 au
i 17.42540302406064 0.00020845 deg
node 118.0147177666039 6.424e-06 deg
peri 214.6422073873244 3.5652e-05 deg
M 31.61976650858536 0.0013721 deg
tp 2459080.347686714362
(2020-Aug-18.84768671)
0.00012533 TDB
period 1367.96812750294
3.75
0.06077
0.0001664
d
yr
n .2631640260925788 1.1691e-05 deg/d
Q 3.831250653072157 0.00011347 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      185 days  
   first obs. used      2020-05-19  
   last obs. used      2020-11-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .47682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:39:18  

Additional Information
 Earth MOID = .0359607 au 
 Jupiter MOID = 1.67469 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459035.5 (2020-Jul-05.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5887051687304191 1.2285e-05  
q .9922034253657315 2.8139e-07 au
tp 2459080.323640839306
(2020-Aug-18.82364084)
0.0001242 TDB
node 118.0245789031174 6.6445e-06 deg
peri 214.5963926610583 3.4354e-05 deg
i 17.43453224837565 0.00020815 deg
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      185 days  
   first obs. used      2020-05-19  
   last obs. used      2020-11-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .47682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:39:18  

Additional Information
 Jupiter MOID = 1.67469 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.509198858238691E-10 -3.038607793204084E-12 -1.50707818753544E-9 -4.094926227911687E-11 -2.77421477880546E-10 2.551096970123979E-9
q -3.038607793204084E-12 7.917929190816111E-14 2.848059379994982E-11 7.130753228059172E-13 2.757597483482772E-12 -5.099030979293696E-11
tp -1.50707818753544E-9 2.848059379994982E-11 1.542574195108671E-8 4.202134730446908E-10 3.250817483778154E-9 -2.542570898444205E-8
node -4.094926227911687E-11 7.130753228059172E-13 4.202134730446908E-10 4.414900355429818E-11 6.066597836289282E-11 -7.217322853545468E-10
peri -2.77421477880546E-10 2.757597483482772E-12 3.250817483778154E-9 6.066597836289282E-11 1.180196240285437E-9 -4.631519090285049E-9
i 2.551096970123979E-9 -5.099030979293696E-11 -2.542570898444205E-8 -7.217322853545468E-10 -4.631519090285049E-9 4.332596805037645E-8

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 21.7   .6308 E2021-DA1 autocmod 2.8

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