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JPL Small-Body Database Browser
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172022 (2001 UZ209)
Classification: Main-belt Asteroid          SPK-ID: 2172022
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2521360847155594 4.7019e-08  
a 3.099319473918777 2.6489e-08 au
q 2.317869196482209 1.44e-07 au
i 17.91135364307751 7.3318e-06 deg
node 140.8366044045452 1.8705e-05 deg
peri 290.4778255951573 2.4346e-05 deg
M 126.3054826926442 1.4544e-05 deg
tp 2458301.273874593089
(2018-Jul-01.77387459)
7.7425e-05 TDB
period 1992.957073439438
5.46
2.555e-05
6.995e-08
d
yr
n .1806361034052346 2.3158e-09 deg/d
Q 3.880769751355344 3.3168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      9859 days (26.99 yr)  
   first obs. used      1992-03-09  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:46:36  

Additional Information
 Earth MOID = 1.40036 au 
 Jupiter MOID = 1.69504 au 
 T_jup = 3.100 
[ 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 15.0   n/a MPO469842  
rotation period rot_per 10.765 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

172022 (2001 UZ209)          Discovered 2001-Oct-20 by NEAT at Haleakala
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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