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(2020 YB4)
Classification: Apollo [NEO]          SPK-ID: 54102500
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 2459209.5 (2020-Dec-26.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6043834884011785 0.0020711  
a 2.146132126152728 0.010594 au
q .8490453051787041 0.00025371 au
i 9.825061001819584 0.026489 deg
node 91.68655759201546 0.0025633 deg
peri 62.99828870381626 0.0027153 deg
M 346.5653894068485 0.11048 deg
tp 2459252.355413754430
(2021-Feb-06.85541375)		 0.035091 TDB
period 1148.373363308304
3.14		 8.503
0.02328		 d
yr
n .3134868950311509 0.0023212 deg/d
Q 3.443218947126752 0.016997 au
   Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      11 days  
   first obs. used      2020-12-23  
   last obs. used      2021-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .42323  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-04 05:22:10  

Additional Information
 Earth MOID = .0332575 au 
 Jupiter MOID = 1.65618 au 
 T_jup = 3.433 
[ show covariance matrix ]

[ 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 24.84   .50657 E2021A14 autocmod 2.8

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