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213694 (2002 TW256)
Classification: Main-belt Asteroid          SPK-ID: 2213694
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1939984249205676 4.4836e-08  
a 2.770570180244514 1.9351e-08 au
q 2.233083929145185 1.2931e-07 au
i 8.390530624182444 5.614e-06 deg
node 41.02113284691775 3.5228e-05 deg
peri 40.08387085088457 3.8267e-05 deg
M 303.3548643708074 1.6864e-05 deg
tp 2459465.540523370706
(2021-Sep-08.04052337)
8.0101e-05 TDB
period 1684.426868320202
4.61
1.7647e-05
4.831e-08
d
yr
n .2137225466837932 2.2391e-09 deg/d
Q 3.308056431343842 2.3105e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      6582 days (18.02 yr)  
   first obs. used      2002-10-09  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55302  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:43  

Additional Information
 Earth MOID = 1.25546 au 
 Jupiter MOID = 2.00653 au 
 T_jup = 3.294 
[ 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 16.12   n/a E2021B55  

213694 (2002 TW256)          Discovered 2002-Oct-09 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2002 TW256 = 2004 FA89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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