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85472 Xizezong (1997 LF4)
Classification: Main-belt Asteroid          SPK-ID: 2085472
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO250929 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.2009114 n/a  
a 2.3127408 n/a AU
q 1.8480848 n/a AU
i 9.28910 n/a deg
node 249.37292 n/a deg
peri 349.70257 n/a deg
M 210.70815 n/a deg
tp 2456933.2487812
(2014-Oct-02.74878120)
n/a JED
period 1284.6619640
3.52
n/a
n/a
d
yr
n 0.28022936 n/a deg/d
Q 2.7773968 n/a AU
  Orbit Determination Parameters
   # obs. used (total)      248  
   first obs. used      1997-??-??  
   last obs. used      2013-01-24  
   # oppositions      11  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.57  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.539 

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPC20688  

85472 Xizezong           Discovered 1997 June 9 by the Beijing Schmidt CCD Asteroid Program, Xinglong.
Chinese science historian and academician of Chinese Academy of Sciences Xi Zezong (b. 1927) made many contributions to the history of science, especially to the history of astronomy. His New Catalogue of Ancient Novae (1955) has received wide attention in the contemporary astrophysical community.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

Alternate Designations
 1997 LF4 = 2000 EJ21 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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