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120616 (1995 WE33)
Classification: Main-belt Asteroid          SPK-ID: 2120616
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593049021493043 3.8055e-08  
a 2.730248877898608 1.7726e-08 au
q 2.295306847561722 1.0424e-07 au
i 3.716451849148001 5.3246e-06 deg
node 152.5644687715574 7.4597e-05 deg
peri 288.0204518900422 7.7521e-05 deg
M 171.3887457738497 2.281e-05 deg
tp 2458416.020529711977
(2018-Oct-24.52052971)
0.00010003 TDB
period 1647.789696041865
4.51
1.6047e-05
4.393e-08
d
yr
n .2184744818254122 2.1276e-09 deg/d
Q 3.165190908235493 2.0549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      9882 days (27.06 yr)  
   first obs. used      1993-05-20  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57097  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:55:56  

Additional Information
 Earth MOID = 1.31399 au 
 Jupiter MOID = 2.07951 au 
 T_jup = 3.333 
[ 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 15.63   n/a E2021B55  
diameter diameter 4.367 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120616 (1995 WE33)          Discovered 1995-Nov-20 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1995 WE33 = 2000 YW45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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