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146630 (2001 UU23)
Classification: Main-belt Asteroid          SPK-ID: 2146630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1418038695330963 4.8613e-08  
a 2.728029209245707 1.6409e-08 au
q 2.341184111175353 1.329e-07 au
i 8.198224155464777 4.3959e-06 deg
node 275.3393580627284 3.8401e-05 deg
peri 106.5481243387886 4.2054e-05 deg
M 53.30039136345621 1.6414e-05 deg
tp 2458756.831242909079
(2019-Sep-30.33124291)
7.5038e-05 TDB
period 1645.780646422691
4.51
1.4849e-05
4.065e-08
d
yr
n .2187411796234843 1.9736e-09 deg/d
Q 3.114874307316061 1.8736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      6965 days (19.07 yr)  
   first obs. used      2001-09-25  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49083  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:26:14  

Additional Information
 Earth MOID = 1.36077 au 
 Jupiter MOID = 2.39359 au 
 T_jup = 3.326 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO502887  
diameter diameter 4.186 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.386 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.]
geometric albedo albedo 0.064   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146630 (2001 UU23)          Discovered 2001-Oct-18 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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