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227899 (2007 EF128)
Classification: Main-belt Asteroid          SPK-ID: 2227899
[ 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 .1427898340307427 6.4774e-08  
a 2.635075789519603 3.1085e-08 au
q 2.25881375487567 1.8123e-07 au
i 3.947315381585414 7.0731e-06 deg
node 347.9024133910512 8.2182e-05 deg
peri 28.50590601403391 8.5206e-05 deg
M 224.7000808997958 2.8876e-05 deg
tp 2459787.696055113399
(2022-Jul-27.19605511)		 0.00013226 TDB
period 1562.385116315302
4.28		 2.7646e-05
7.569e-08		 d
yr
n .2304169415342465 4.0772e-09 deg/d
Q 3.011337824163536 3.5524e-08 au
   Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      6233 days (17.07 yr)  
   first obs. used      2003-04-04  
   last obs. used      2020-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62076  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:35  

Additional Information
 Earth MOID = 1.25948 au 
 Jupiter MOID = 2.46255 au 
 T_jup = 3.380 
[ 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 16.77   n/a E2021B55  

227899 (2007 EF128)          Discovered 2007-Mar-09 by Mt. Lemmon Survey at Mount Lemmon
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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