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308195 (2005 EW12)
Classification: Mars-crossing Asteroid          SPK-ID: 2308195
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4532394380115401 1.2829e-07  
a 2.531980773448575 1.5722e-08 au
q 1.384387230634718 3.3043e-07 au
i 3.443881731165904 5.1533e-06 deg
node 17.10388779395351 0.00013327 deg
peri 73.26582589271509 0.00015304 deg
M 306.7488504520712 1.8206e-05 deg
tp 2459218.178491367258
(2021-Jan-03.67849137)
7.476e-05 TDB
period 1471.597468927519
4.03
1.3706e-05
3.752e-08
d
yr
n .2446321141489617 2.2785e-09 deg/d
Q 3.679574316262432 2.2847e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      8770 days (24.01 yr)  
   first obs. used      1993-03-24  
   last obs. used      2017-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48176  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 13:06:24  

Additional Information
 Earth MOID = .406512 au 
 Jupiter MOID = 1.58119 au 
 T_jup = 3.296 
[ 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 17.3   n/a MPO397079  

308195 (2005 EW12)          Discovered 2005-Mar-02 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 EW12 = 2001 FQ165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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