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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09256934444231776 4.9379e-08  
a 2.310414713041644 1.5431e-08 AU
q 2.096541137665493 1.0954e-07 AU
i 3.992187689568166 5.6726e-06 deg
node 290.0490313016254 8.3643e-05 deg
peri 230.5830451192453 9.1134e-05 deg
M 123.0070534174277 3.5355e-05 deg
tp 2456562.210714741790
(2013-Sep-26.71071474)
0.00012563 JED
period 1282.724350428192
3.51
1.2851e-05
3.518e-08
d
yr
n .2806526592247405 2.8116e-09 deg/d
Q 2.524288288417794 1.6859e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      11728 days (32.11 yr)  
   first obs. used      1982-05-15  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49745  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:36:30  

Additional Information
 Earth MOID = 1.10868 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 (413)
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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