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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09268838805800043 4.7538e-08  
a 2.309924709686476 1.3312e-08 au
q 2.095821511810292 1.0691e-07 au
i 3.991989517682371 4.4571e-06 deg
node 290.0346068422158 7.8901e-05 deg
peri 230.7994909676242 8.4197e-05 deg
M 291.1909698540894 3.1993e-05 deg
tp 2457845.597058742528
(2017-Apr-02.09705874)
0.00011496 JED
period 1282.31630296498
3.51
1.1085e-05
3.035e-08
d
yr
n .2807419660559611 2.4268e-09 deg/d
Q 2.524027907562661 1.4546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1038  
   data-arc span      12324 days (33.74 yr)  
   first obs. used      1982-05-15  
   last obs. used      2016-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5033  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:26:48  

Additional Information
 Earth MOID = 1.1062 au 
 Jupiter MOID = 2.4714 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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