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346261 Alexandrescu (2008 EK145)
Classification: Main-belt Asteroid          SPK-ID: 2346261
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728755721354652 1.1922e-07  
a 2.244472153263509 2.9899e-08 AU
q 1.85645774562596 2.7763e-07 AU
i 6.587660311590387 1.2659e-05 deg
node 201.4072738618382 8.0068e-05 deg
peri 126.000991428318 8.9291e-05 deg
M 229.4038440132818 3.7862e-05 deg
tp 2457446.051235608587
(2016-Feb-27.55123561)
0.00013347 JED
period 1228.201883946755
3.36
2.4542e-05
6.719e-08
d
yr
n .2931114214245961 5.8569e-09 deg/d
Q 2.632486560901057 3.5068e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      4693 days (12.85 yr)  
   first obs. used      2002-07-20  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52258  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-05 03:56:55  

Additional Information
 Earth MOID = .855379 AU 
 T_jup = 3.604 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.1 mag n/a MPO339110  

346261 Alexandrescu           Discovered 2008 Mar. 12 by EURONEAR at the European Southern Observatory.
Harald Alexandrescu (1945-2005) was a Romanian astronomer, renowned for his public outreach activity. A specialist in celestial mechanics, geodesy and satellites, he worked at the Astronomical Institute, the Institute of Geodesy and founded the Institute of Gravitation and Space Sciences in Bucharest.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20130127/MPCPages.arcLast Updated: 2013-01-31

Alternate Designations
 2008 EK145 = 2009 RV44 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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