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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728755460123244 1.42e-07  
a 2.244472145802349 3.6118e-08 AU
q 1.856457798087314 3.1867e-07 AU
i 6.587656374142018 1.4073e-05 deg
node 201.4073341377641 0.00012023 deg
peri 126.0009338922561 0.0001267 deg
M 229.4038454939686 3.8004e-05 deg
tp 2457446.051228335293
(2016-Feb-27.55122834)
0.00013458 JED
period 1228.201877822502
3.36
2.9647e-05
8.117e-08
d
yr
n .2931114228861541 7.0752e-09 deg/d
Q 2.632486493517384 4.2362e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      64  
   data-arc span      3761 days (10.30 yr)  
   first obs. used      2002-07-20  
   last obs. used      2012-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50512  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 18:28:57  

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 17.8 mag n/a MPO242696  

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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