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226083 (2002 LW21)
Classification: Main-belt Asteroid          SPK-ID: 2226083
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2484997045141379 5.2211e-08  
a 3.194093127548201 3.4533e-08 au
q 2.400361929161835 1.757e-07 au
i 26.83811921305768 8.233e-06 deg
node 63.26778596889403 1.054e-05 deg
peri 288.6244641111035 1.8577e-05 deg
M 15.78876941699526 1.3602e-05 deg
tp 2459109.053819672206
(2020-Sep-16.55381967)
7.8917e-05 TDB
period 2085.065912899435
5.71
3.3814e-05
9.258e-08
d
yr
n .1726564123334566 2.8e-09 deg/d
Q 3.987824325934568 4.3115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      506  
   data-arc span      8116 days (22.22 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50489  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:34:24  

Additional Information
 Earth MOID = 1.53481 au 
 Jupiter MOID = 1.96471 au 
 T_jup = 2.983 
[ 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 14.52   n/a E2021B55  
diameter diameter 7.977 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226083 (2002 LW21)          Discovered 2002-Jun-08 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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