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JPL Small-Body Database Browser
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172033 (2001 WQ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172033
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1138325209220991 5.9668e-08  
a 3.241680438543103 4.8212e-08 au
q 2.872671782199886 2.1195e-07 au
i 1.309142176337051 7.6204e-06 deg
node 44.2950226336157 0.00028284 deg
peri 267.5110722324476 0.00028545 deg
M 157.6063553603027 4.226e-05 deg
tp 2458067.192076854679
(2017-Nov-09.69207685)
0.00024672 TDB
period 2131.835683682993
5.84
4.7559e-05
1.302e-07
d
yr
n .1688685496520343 3.7673e-09 deg/d
Q 3.610689094886321 5.37e-08 au
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      6623 days (18.13 yr)  
   first obs. used      2001-11-16  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 21:44:00  

Additional Information
 Earth MOID = 1.85882 au 
 Jupiter MOID = 1.64078 au 
 T_jup = 3.173 
[ 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 15.4   n/a MPO439988  
diameter diameter 4.991 km 0.799 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172033 (2001 WQ)          Discovered 2001-Nov-16 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2001 WQ = 2006 RA100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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