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JPL Small-Body Database Browser
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66936 (1999 WD5)
Classification: Main-belt Asteroid          SPK-ID: 2066936
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606163586436486 4.0422e-08  
a 2.689124275483586 1.4552e-08 au
q 2.257206926415173 1.0761e-07 au
i 12.04044537970011 4.6848e-06 deg
node 250.6714566160273 2.3979e-05 deg
peri 179.4108697555355 2.9296e-05 deg
M 242.0797977057019 1.8561e-05 deg
tp 2459528.094733208908
(2021-Nov-09.59473321)
8.5149e-05 TDB
period 1610.700289346358
4.41
1.3074e-05
3.579e-08
d
yr
n .2235052681005555 1.8142e-09 deg/d
Q 3.121041624552 1.689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      7651 days (20.95 yr)  
   first obs. used      1998-07-26  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47196  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:53:28  

Additional Information
 Earth MOID = 1.27164 au 
 Jupiter MOID = 2.17915 au 
 T_jup = 3.323 
[ 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 13.7   n/a MPO385243  
diameter diameter 4.730 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.314   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66936 (1999 WD5)          Discovered 1999-Nov-28 by Kobayashi, T. at Oizumi
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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