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216712 (2005 EN1)
Classification: Main-belt Asteroid          SPK-ID: 2216712
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297215337779315 3.5999e-08  
a 2.329041010051024 1.1939e-08 au
q 2.026914237995502 7.951e-08 au
i 1.236823353189162 5.542e-06 deg
node 96.00655547662674 0.00026218 deg
peri 132.2301195995049 0.00026367 deg
M 110.6627017482552 2.8353e-05 deg
tp 2458801.417302867457
(2019-Nov-13.91730287)
0.00010168 TDB
period 1298.267335769081
3.55
9.9826e-06
2.733e-08
d
yr
n .2772926577458252 2.1321e-09 deg/d
Q 2.631167782106545 1.3488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      355  
   data-arc span      10214 days (27.96 yr)  
   first obs. used      1992-09-30  
   last obs. used      2020-09-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55707  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:59  

Additional Information
 Earth MOID = 1.01586 au 
 Jupiter MOID = 2.34926 au 
 T_jup = 3.561 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.15   n/a E2021B55  

216712 (2005 EN1)          Discovered 2005-Mar-03 by Lowe, A. at Mayhill
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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