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JPL Small-Body Database Browser
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215321 (2001 TW138)
Classification: Main-belt Asteroid          SPK-ID: 2215321
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3192206977383468 4.3537e-08  
a 2.604154010473795 2.1627e-08 au
q 1.772854150232236 1.1128e-07 au
i 16.19605486531241 1.0823e-05 deg
node 21.23924580682938 1.8698e-05 deg
peri 269.6968112420964 2.8704e-05 deg
M 100.6258384999861 2.5184e-05 deg
tp 2458171.452440615120
(2018-Feb-21.95244062)
0.00010324 TDB
period 1534.964813024423
4.20
1.9121e-05
5.235e-08
d
yr
n .2345330635238946 2.9216e-09 deg/d
Q 3.435453870715354 2.8531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      260  
   data-arc span      9224 days (25.25 yr)  
   first obs. used      1993-10-24  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66061  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:30:50  

Additional Information
 Earth MOID = .845335 au 
 Jupiter MOID = 2.11231 au 
 T_jup = 3.286 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO454547  

215321 (2001 TW138)          Discovered 2001-Oct-10 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2001 TW138 = 2005 LN52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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