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66937 (1999 WB6)
Classification: Main-belt Asteroid          SPK-ID: 2066937
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05162912350577207 3.4211e-08  
a 2.741600241784986 1.2607e-08 au
q 2.600053824298415 9.4231e-08 au
i 4.60104768785462 3.9401e-06 deg
node 86.26474995120576 4.9541e-05 deg
peri 4.413477064782391 6.4633e-05 deg
M 195.9382025503905 4.2622e-05 deg
tp 2459956.130685676718
(2023-Jan-11.63068568)
0.00019811 TDB
period 1658.076719092207
4.54
1.1437e-05
3.131e-08
d
yr
n .2171190246233595 1.4976e-09 deg/d
Q 2.883146659271558 1.3258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1487  
   data-arc span      10860 days (29.73 yr)  
   first obs. used      1990-11-18  
   last obs. used      2020-08-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:26:00  

Additional Information
 Earth MOID = 1.61633 au 
 Jupiter MOID = 2.21445 au 
 T_jup = 3.343 
[ 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 14.29   n/a E2021B10  
diameter diameter 3.776 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.341   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66937 (1999 WB6)          Discovered 1999-Nov-28 by Korlevic, K. at Visnjan
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 WB6 = 1997 GY41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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