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(2020 LD)
Classification: Apollo [NEO]          SPK-ID: 54017368
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8007139294862073 1.8662e-05  
a 1.215023406473614 6.252e-05 au
q .2421372402584093 1.0347e-05 au
i 3.676728918026667 0.00014286 deg
node 73.36039432082251 0.00026799 deg
peri 46.04996156844908 0.00031668 deg
M 29.25884522642573 0.0030554 deg
tp 2458960.741492385026
(2020-Apr-21.24149239)
0.001099 TDB
period 489.1875475818045
1.34
0.037757
0.0001034
d
yr
n .7359140717697826 5.6801e-05 deg/d
Q 2.187909572688819 0.00011258 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      40 days  
   first obs. used      2020-06-07  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40032  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-25 06:40:14  

Additional Information
 Earth MOID = .00170395 au 
 Jupiter MOID = 2.92993 au 
 T_jup = 4.860 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459023.5 (2020-Jun-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8005555579763871 1.8725e-05  
q .2433170511118536 1.0502e-05 au
tp 2458960.736527787817
(2020-Apr-21.23652779)
0.0010988 TDB
node 73.25619471458778 0.00026387 deg
peri 46.34992156475715 0.00030986 deg
i 3.433718718500808 0.00016458 deg
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      40 days  
   first obs. used      2020-06-07  
   last obs. used      2020-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .40032  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-25 06:40:14  

Additional Information
 Jupiter MOID = 2.92993 au 
 T_jup = 4.860 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.506087240786475E-10 -1.954197336709356E-10 2.046714461513616E-8 -2.76251125979749E-9 -3.966213563917899E-10 2.930696498276157E-9
q -1.954197336709356E-10 1.102900319065555E-10 -1.153526706238119E-8 1.295949721214825E-9 5.775154655831445E-10 -1.672541232786012E-9
tp 2.046714461513616E-8 -1.153526706238119E-8 1.207372066404961E-6 -1.373091963376244E-7 -5.694197013645251E-8 1.749407417756368E-7
node -2.76251125979749E-9 1.295949721214825E-9 -1.373091963376244E-7 6.962724095004069E-8 -6.364759827278687E-8 -1.413440311027843E-8
peri -3.966213563917899E-10 5.775154655831445E-10 -5.694197013645251E-8 -6.364759827278687E-8 9.601488933194309E-8 -1.527986194118791E-8
i 2.930696498276157E-9 -1.672541232786012E-9 1.749407417756368E-7 -1.413440311027843E-8 -1.527986194118791E-8 2.708711332592973E-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 22.386   .23325 11 autocmod 2.8

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