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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07508684987323155 6.2847e-08  
a 2.767032444258929 2.6625e-08 au
q 2.559264694522498 1.7024e-07 au
i 5.812813076600317 6.109e-06 deg
node 145.6186826331102 6.4735e-05 deg
peri 264.3272792816597 7.5812e-05 deg
M 262.4902972854493 4.0778e-05 deg
tp 2459455.870754823312
(2021-Aug-29.37075482)
0.00019224 TDB
period 1681.201636069902
4.60
2.4265e-05
6.643e-08
d
yr
n .2141325539282498 3.0906e-09 deg/d
Q 2.97480019399536 2.8624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      8878 days (24.31 yr)  
   first obs. used      1995-02-07  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:50:34  

Additional Information
 Earth MOID = 1.57747 au 
 Jupiter MOID = 2.29495 au 
 T_jup = 3.327 
[ 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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