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469298 (1997 EN16)
Classification: Main-belt Asteroid          SPK-ID: 2469298
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1252243920247915 1.1432e-07  
a 2.42092597562627 1.9015e-08 au
q 2.117766992191445 2.7066e-07 au
i .554377242995734 1.0003e-05 deg
node 332.5854092808369 0.00085392 deg
peri 210.1055347570403 0.00085473 deg
M 309.9444907712182 3.2498e-05 deg
tp 2458791.802248870466
(2019-Nov-04.30224887)
0.00012482 TDB
period 1375.848745811348
3.77
1.6209e-05
4.438e-08
d
yr
n .2616566690895265 3.0827e-09 deg/d
Q 2.724084959061095 2.1396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1997-03-05  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63164  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:34:04  

Additional Information
 Earth MOID = 1.12058 au 
 Jupiter MOID = 2.23654 au 
 T_jup = 3.503 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.3   n/a MPO382840  

469298 (1997 EN16)          Discovered 1997-Mar-05 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22

Alternate Designations
 1997 EN16 = 2016 GW247 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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