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JPL Small-Body Database Browser
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212797 Lipei (2007 TG247)
Classification: Main-belt Asteroid          SPK-ID: 2212797
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07648903999508717 6.4861e-08  
a 2.765837996771309 2.6571e-08 au
q 2.554281703616337 1.7617e-07 au
i 5.805535436259301 6.6042e-06 deg
node 145.7390645837148 6.5274e-05 deg
peri 263.6065065235448 7.7104e-05 deg
M 177.5856842351241 4.1349e-05 deg
tp 2457771.710983470198
(2017-Jan-18.21098347)
0.00019117 TDB
period 1680.113164728378
4.60
2.4211e-05
6.629e-08
d
yr
n .2142712809813621 3.0877e-09 deg/d
Q 2.977394289926282 2.8604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      8859 days (24.25 yr)  
   first obs. used      1995-02-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58467  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:20:26  

Additional Information
 Earth MOID = 1.57179 au 
 Jupiter MOID = 2.3001 au 
 T_jup = 3.328 
[ 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 16.2   n/a MPO385925  

212797 Lipei           Discovered 2007 Oct. 9 by PMO NEO Survey Program at XuYi.
Li Pei (1917-2017), a professor at University of Science and Technology of China and a famous linguist, made significant contributions to the foreign language teaching and research. She was honored as "the mother of Chinese applied linguistics".
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

[ show close-approach data ]
Alternate Designations
 2007 TG247 = 2002 TO142 = 2005 GW221 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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