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213678 (2002 TD81)
Classification: Main-belt Asteroid          SPK-ID: 2213678
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380120114202795 4.516e-08  
a 2.711478341515574 1.6463e-08 au
q 2.337261761680486 1.2781e-07 au
i 6.23321429680243 4.5846e-06 deg
node 95.12524677683972 4.5948e-05 deg
peri 349.6387630608658 5.0171e-05 deg
M 340.7170299549189 1.8532e-05 deg
tp 2459287.853248934607
(2021-Mar-14.35324893)
8.4028e-05 TDB
period 1630.826036805482
4.46
1.4853e-05
4.067e-08
d
yr
n .2207470275034241 2.0104e-09 deg/d
Q 3.085694921350662 1.8735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      478  
   data-arc span      6704 days (18.35 yr)  
   first obs. used      2002-10-01  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56866  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:39  

Additional Information
 Earth MOID = 1.35346 au 
 Jupiter MOID = 2.12314 au 
 T_jup = 3.340 
[ 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 15.92   n/a MPCxxxxx  

213678 (2002 TD81)          Discovered 2002-Oct-01 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2002 TD81 = 2004 DF71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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