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JPL Small-Body Database Browser
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(2019 YA4)
Classification: Aten [NEO]          SPK-ID: 3959222
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4702802050084574 0.00017471  
a .9224190242657426 5.9073e-05 au
q .488623616430348 0.00012989 au
i 2.820766904565581 0.0016946 deg
node 120.0296327555298 0.0053476 deg
peri 206.2893692510445 0.0041298 deg
M 248.3240210003025 0.039051 deg
tp 2459100.880203453380
(2020-Sep-08.38020345)
0.044743 TDB
period 323.5868050309605
0.89
0.031084
8.51e-05
d
yr
n 1.112529912848441 0.00010687 deg/d
Q 1.356214432101137 8.6853e-05 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      24 days  
   first obs. used      2019-12-29  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .32415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-24 05:53:36  

Additional Information
 Earth MOID = .0231851 au 
 Jupiter MOID = 3.98646 au 
 T_jup = 6.383 
[ 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 23.2   .38486 E2020A92 autocmod 2.8

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