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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 
[ 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2034-Mar-10 19:30 00:01 Ceres 0.044177006829223 0.0441716595814443 0.044182354405779 4.01449016876867 4.01448778664059 2464032.312641888 1.34870197899905 345.679403179736 139.457100664839 -44.6467008512903 35675.5871976944 T 13 CATAB v2.0f-lin.ifort 2021-Apr-13 23:43:43 2021-Apr-13 23:43
2038-Oct-21 19:09 00:01 Ceres 0.0363197984496992 0.036316933110189 0.0363226638669275 3.84471452391913 3.84471149850863 2465718.297916685 1.36767791084242 402.795196985071 138.10032941913 85.3420306916051 38876.424143692 T 13 CATAB v2.0f-lin.ifort 2021-Apr-13 23:43:43 2021-Apr-13 23:43

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