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213228 (2000 WM44)
Classification: Main-belt Asteroid          SPK-ID: 2213228
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 .1313008505276388 4.1429e-08  
a 3.133408341072509 3.1855e-08 au
q 2.721989160839291 1.3816e-07 au
i 16.13650910719857 5.2729e-06 deg
node 227.2675721586421 1.6142e-05 deg
peri 92.05384374186706 2.7587e-05 deg
M 300.1624257956041 2.3541e-05 deg
tp 2459537.240535288875
(2021-Nov-18.74053529)
0.00013521 TDB
period 2025.927593419874
5.55
3.0895e-05
8.459e-08
d
yr
n .1776963802503429 2.7098e-09 deg/d
Q 3.544827521305727 3.6038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8097 days (22.17 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55894  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:53  

Additional Information
 Earth MOID = 1.76959 au 
 Jupiter MOID = 1.86744 au 
 T_jup = 3.139 
[ 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 14.69   n/a E2021B55  
diameter diameter 6.491 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213228 (2000 WM44)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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