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305490 (2008 EC14)
Classification: Main-belt Asteroid          SPK-ID: 2305490
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006131893992565277 5.1235e-08  
a 2.840269336907761 3.0459e-08 au
q 2.822853106423509 1.5755e-07 au
i 6.812700672418393 5.7187e-06 deg
node 125.1004699755677 4.9232e-05 deg
peri 298.4464762306382 0.00052436 deg
M 309.3006919830976 0.00052342 deg
tp 2459246.727891284610
(2021-Feb-01.22789128)
0.0025429 TDB
period 1748.387588108852
4.79
2.8124e-05
7.7e-08
d
yr
n .2059040011771045 3.3121e-09 deg/d
Q 2.857685567392013 3.0645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      8312 days (22.76 yr)  
   first obs. used      1996-11-18  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56346  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:47  

Additional Information
 Earth MOID = 1.83218 au 
 Jupiter MOID = 2.14636 au 
 T_jup = 3.299 
[ 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 16.2   n/a MPO450228  

305490 (2008 EC14)          Discovered 2008-Mar-01 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 EC14 = 1996 WJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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