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JPL Small-Body Database Browser
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37221 (2000 WA142)
Classification: Main-belt Asteroid          SPK-ID: 2037221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07255442833065091 4.3322e-08  
a 2.674175191184344 1.6306e-08 au
q 2.480151938931955 1.1945e-07 au
i 16.13949290761944 4.995e-06 deg
node 90.19258261872618 1.8294e-05 deg
peri 323.3621003456972 4.1756e-05 deg
M 156.7366385245529 3.8471e-05 deg
tp 2458305.073497237827
(2018-Jul-05.57349724)
0.00016888 TDB
period 1597.287930576386
4.37
1.4609e-05
4e-08
d
yr
n .2253820323240613 2.0614e-09 deg/d
Q 2.868198443436734 1.7489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1025  
   data-arc span      8442 days (23.11 yr)  
   first obs. used      1996-12-19  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:27:28  

Additional Information
 Earth MOID = 1.50869 au 
 Jupiter MOID = 2.41139 au 
 T_jup = 3.319 
[ 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 14.2   n/a MPO385052  
diameter diameter 3.231 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.388   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37221 (2000 WA142)          Discovered 2000-Nov-20 by LONEOS at Anderson Mesa
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WA142 = 1998 GG7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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