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13629 (1995 WD2)
Classification: Main-belt Asteroid          SPK-ID: 2013629
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .165365415950936 3.8635e-08  
a 2.327016060105024 7.4967e-09 au
q 1.942208081401249 8.9749e-08 au
i 2.32879980190529 3.9374e-06 deg
node 222.7837845308441 0.0001105 deg
peri 263.6200086302076 0.00011125 deg
M 281.6492920488637 1.4047e-05 deg
tp 2459282.687597464534
(2021-Mar-09.18759746)
5.1333e-05 TDB
period 1296.574565102686
3.55
6.2656e-06
1.715e-08
d
yr
n .2776546831084017 1.3417e-09 deg/d
Q 2.7118240388088 8.7364e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1262  
   data-arc span      15717 days (43.03 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51317  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:45:07  

Additional Information
 Earth MOID = .959118 au 
 Jupiter MOID = 2.35388 au 
 T_jup = 3.554 
[ 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 14.9   n/a MPO247485  
diameter diameter 3.186 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.91630 h n/a LCDB (Rev. 2019-August); 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 0.209   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13629 (1995 WD2)          Discovered 1995-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 WD2 = 1977 UZ4 = 1982 BT11 = 1991 TU7 = 1993 FX24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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