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(1997 YM9)
Classification: Apollo [NEO]          SPK-ID: 3092168
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039273470507312 5.6498e-08  
a 1.095934615022798 3.8886e-09 au
q .9820370379424145 6.1541e-08 au
i 7.843111609733602 2.6656e-05 deg
node 94.73170843356266 2.264e-05 deg
peri 51.74455019729972 9.9358e-05 deg
M 164.5628037734694 6.915e-05 deg
tp 2458808.940113653044
(2019-Nov-21.44011365)		 8.0668e-05 TDB
period 419.0592132826931
1.15		 2.2303e-06
6.106e-09		 d
yr
n .8590671403688901 4.5722e-09 deg/d
Q 1.209832192103182 4.2927e-09 au
   Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      3049 days (8.35 yr)  
   first obs. used      1997-12-28  
   last obs. used      2006-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54497  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:17:55  

Additional Information
 Earth MOID = .031132 au 
 Jupiter MOID = 3.78134 au 
 T_jup = 5.652 
[ 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 24.0   n/a MPO99888  

[ show close-approach data ]
Alternate Designations
 1997 YM9 = 2005 YM128 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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