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(2015 YY18)
Classification: Centaur          SPK-ID: 3739244
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8306129966669571 3.7502e-06  
a 19.37611637242968 0.00044352 au
q 3.282062288558174 3.5041e-06 au
i 118.2446960688515 1.7445e-05 deg
node 258.1286454725608 9.323e-06 deg
peri 147.7623441040882 0.00013528 deg
M 21.31346373394429 0.00073653 deg
tp 2457356.121454545041
(2015-Nov-29.62145454)
0.00060931 TDB
period 31152.90337845566
85.29
1.0696
0.002928
d
yr
n .01155590525950671 3.9678e-07 deg/d
Q 35.4701704563012 0.00081192 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      389 days (1.07 yr)  
   first obs. used      2015-11-30  
   last obs. used      2016-12-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .32925  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 15:45:14  

Additional Information
 Earth MOID = 2.39623 au 
 Jupiter MOID = 1.48079 au 
 T_jup = -0.748 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO394303  

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