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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940741587260407 4.4825e-08  
a 2.770592906317758 1.9199e-08 au
q 2.232892418851803 1.2929e-07 au
i 8.390641575415223 5.6141e-06 deg
node 41.02026385903458 3.5228e-05 deg
peri 40.11007487992381 3.8268e-05 deg
M 345.2306116210447 1.7054e-05 deg
tp 2459465.606279759108
(2021-Sep-08.10627976)
8.0112e-05 TDB
period 1684.447593559626
4.61
1.7508e-05
4.793e-08
d
yr
n .2137199170674328 2.2214e-09 deg/d
Q 3.308293393783713 2.2925e-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 = 1.25558 au 
 Jupiter MOID = 2.00687 au 
 T_jup = 3.294 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457501.5 (2016-Apr-23.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1934903597215779 4.4688e-08  
q 2.236037970835663 1.2892e-07 au
tp 2457770.991788979704
(2017-Jan-17.49178898)
7.4012e-05 TDB
node 41.25069102128796 3.5001e-05 deg
peri 38.42854055270276 3.8207e-05 deg
i 8.420810248199368 5.6318e-06 deg
  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
 Jupiter MOID = 2.00687 au 
 T_jup = 3.294 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.997036273757684E-15 -5.721657621012129E-15 -8.823734804729513E-13 1.663344179120304E-15 -1.03083599425063E-13 -5.806363203492397E-16
q -5.721657621012129E-15 1.662122028567295E-14 2.7963971476592E-12 -6.987873195779169E-15 3.435315282626808E-13 2.916164278047093E-15
tp -8.823734804729513E-13 2.7963971476592E-12 5.477832714576887E-9 2.257158212368306E-12 1.157450464864431E-9 8.536657045774832E-12
node 1.663344179120304E-15 -6.987873195779169E-15 2.257158212368306E-12 1.225056192737881E-9 -1.210572859859217E-9 -6.239934681440544E-11
peri -1.03083599425063E-13 3.435315282626808E-13 1.157450464864431E-9 -1.210572859859217E-9 1.459806201712952E-9 6.344171168303407E-11
i -5.806363203492397E-16 2.916164278047093E-15 8.536657045774832E-12 -6.239934681440544E-11 6.344171168303407E-11 3.17169565669379E-11

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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