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JPL Small-Body Database Browser
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(2018 YY2)
Classification: Apollo [NEO]          SPK-ID: 3837545
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3644636816868686 0.00047579  
a 1.468038527317406 0.0010383 au
q .9329918007931357 3.8633e-05 au
i 12.77261179771911 0.012494 deg
node 278.1863825725565 0.00056233 deg
peri 141.0788811649817 0.0021593 deg
M 304.1630490685025 0.32686 deg
tp 2459101.268269644917
(2020-Sep-08.76826965)
0.69678 TDB
period 649.6876435225705
1.78
0.68927
0.001887
d
yr
n .5541124317034873 0.00058787 deg/d
Q 2.003085253841677 0.0014168 au
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      4 days  
   first obs. used      2018-12-31  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .39907  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-06 07:24:34  

Additional Information
 Earth MOID = .00677582 au 
 Jupiter MOID = 3.35913 au 
 T_jup = 4.509 
[ 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 25.9   .16886 E2019A83 autocmod 2.6q

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