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65461 (2002 WU12)
Classification: Main-belt Asteroid          SPK-ID: 2065461
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125703093721024 5.6325e-08  
a 2.632038859964064 1.098e-08 au
q 2.072545545222107 1.4636e-07 au
i 11.53116952438164 5.191e-06 deg
node 166.9154206252236 2.4376e-05 deg
peri 223.2546771725683 2.6059e-05 deg
M 329.9716456525474 8.9216e-06 deg
tp 2458730.596587124726
(2019-Sep-04.09658712)
3.872e-05 TDB
period 1559.684917228062
4.27
9.76e-06
2.672e-08
d
yr
n .2308158500627212 1.4444e-09 deg/d
Q 3.19153217470602 1.3314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1040  
   data-arc span      10484 days (28.70 yr)  
   first obs. used      1991-03-13  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 05:45:09  

Additional Information
 Earth MOID = 1.09145 au 
 Jupiter MOID = 2.3053 au 
 T_jup = 3.339 
[ 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 14.6   n/a MPO359197  
diameter diameter 6.458 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.21178 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.051   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65461 (2002 WU12)          Discovered 2002-Nov-28 by Fountain Hills at Fountain Hills
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 WU12 = 1993 QM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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