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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595335239991387 3.8273e-08  
a 2.72984837532377 1.8139e-08 au
q 2.294346044025045 1.0513e-07 au
i 3.716434659811475 5.9497e-06 deg
node 152.5704050139165 7.4678e-05 deg
peri 288.0358314866817 7.7915e-05 deg
M 127.6487990376438 2.2997e-05 deg
tp 2458416.355290595433
(2018-Oct-24.85529060)
0.00010238 TDB
period 1647.427135790198
4.51
1.642e-05
4.496e-08
d
yr
n .2185225629583453 2.178e-09 deg/d
Q 3.165350706622494 2.1033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      9839 days (26.94 yr)  
   first obs. used      1993-05-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:02  

Additional Information
 Earth MOID = 1.31342 au 
 Jupiter MOID = 2.07923 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 15.5   n/a MPO417628  
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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