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102440 (1999 TW213)
Classification: Main-belt Asteroid          SPK-ID: 2102440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1919923863004878 5.5416e-08  
a 2.444508797579443 1.118e-08 au
q 1.97518172019963 1.348e-07 au
i 1.520990184753027 5.9385e-06 deg
node 150.9339415917307 0.00014048 deg
peri 175.4384064895138 0.00014097 deg
M 231.6414134961599 1.0414e-05 deg
tp 2459698.246550503259
(2022-Apr-28.74655050)
4.1644e-05 TDB
period 1396.001335491587
3.82
9.577e-06
2.622e-08
d
yr
n .257879409458609 1.7691e-09 deg/d
Q 2.913835874959257 1.3327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      8931 days (24.45 yr)  
   first obs. used      1995-09-02  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:54:45  

Additional Information
 Earth MOID = .96153 au 
 Jupiter MOID = 2.42356 au 
 T_jup = 3.473 
[ 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 16.68   n/a E2021B55  

102440 (1999 TW213)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 TW213 = 1995 SC49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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