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227889 (2007 EC49)
Classification: Main-belt Asteroid          SPK-ID: 2227889
[ 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 .152753313141658 3.299e-08  
a 2.273676914671475 1.098e-08 au
q 1.926365232941705 7.6509e-08 au
i 1.406817657885553 4.0162e-06 deg
node 89.31781619246759 0.00020619 deg
peri 21.24749510063818 0.00020721 deg
M 68.59344604792726 1.8407e-05 deg
tp 2458961.899320391173
(2020-Apr-22.39932039)		 6.4322e-05 TDB
period 1252.251484772475
3.43		 9.0711e-06
2.484e-08		 d
yr
n .2874821905804403 2.0825e-09 deg/d
Q 2.620988596401246 1.2657e-08 au
   Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      6280 days (17.19 yr)  
   first obs. used      2002-12-05  
   last obs. used      2020-02-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50028  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:33  

Additional Information
 Earth MOID = .942995 au 
 Jupiter MOID = 2.48115 au 
 T_jup = 3.595 
[ 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 17.61   n/a E2021B55  

227889 (2007 EC49)          Discovered 2007-Mar-09 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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