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16440 (1989 EN5)
Classification: Main-belt Asteroid          SPK-ID: 2016440
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09266064418494199 4.7728e-08  
a 2.310232050679291 1.3413e-08 au
q 2.096164460646649 1.0725e-07 au
i 3.991766496837439 4.5116e-06 deg
node 290.0399084348084 7.8923e-05 deg
peri 230.7096851354578 8.4249e-05 deg
M 235.1332949574179 3.1812e-05 deg
tp 2457845.362691337217
(2017-Apr-01.86269134)
0.00011511 JED
period 1282.572234342079
3.51
1.117e-05
3.058e-08
d
yr
n .2806859452907688 2.4445e-09 deg/d
Q 2.524299640711934 1.4656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1024  
   data-arc span      12261 days (33.57 yr)  
   first obs. used      1982-05-15  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49793  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:33:52  

Additional Information
 Earth MOID = 1.10761 au 
 Jupiter MOID = 2.47135 au 
 T_jup = 3.576 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO259459  

16440 (1989 EN5)          Discovered 1989-Mar-02 by McNaught, R. H. at Siding Spring
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 EN5 = 1998 XA67 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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