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332796 (2009 WD64)
Classification: Main-belt Asteroid          SPK-ID: 2332796
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017771729870657 7.6423e-08  
a 2.723307291234555 3.5488e-08 au
q 2.446136773957639 2.0764e-07 au
i 11.29144590054661 9.0177e-06 deg
node 61.32298936302521 4.4284e-05 deg
peri 241.7473301552832 6.8142e-05 deg
M 266.2825266010822 5.7847e-05 deg
tp 2459627.828118778693
(2022-Feb-17.32811878)
0.00026702 TDB
period 1641.509498506239
4.49
3.2086e-05
8.785e-08
d
yr
n .2193103362043273 4.2868e-09 deg/d
Q 3.000477808511472 3.91e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      9393 days (25.72 yr)  
   first obs. used      1994-05-14  
   last obs. used      2020-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .73502  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 07:48:31  

Additional Information
 Earth MOID = 1.452 au 
 Jupiter MOID = 2.19319 au 
 T_jup = 3.322 
[ 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 16.9   n/a MPO455451  
diameter diameter 2.964 km 0.456 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

332796 (2009 WD64)          Discovered 2009-Nov-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-Oct-26 02:29 00:10 Hebe 0.046321449959704 0.0463060892057793 0.0463368402948614 5.63719039212233 5.6371903683149 2422988.603642570 9.73990086890024 2121.37257084675 276.054317875667 -70.1247304442932 23625.3597217283 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 07:48:31 2021-Apr-14 07:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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