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66941 (1999 WO11)
Classification: Main-belt Asteroid          SPK-ID: 2066941
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07891567361861161 3.718e-08  
a 2.983020473118259 1.7668e-08 au
q 2.747613403064022 1.1489e-07 au
i 8.382896900345987 3.8721e-06 deg
node 283.9113691789854 2.8028e-05 deg
peri 195.6173560668417 3.8231e-05 deg
M 306.350492295229 2.6203e-05 deg
tp 2459280.943913117127
(2021-Mar-07.44391312)
0.00013763 TDB
period 1881.840356816315
5.15
1.6719e-05
4.577e-08
d
yr
n .1913020935575246 1.6996e-09 deg/d
Q 3.218427543172496 1.9062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1629  
   data-arc span      7812 days (21.39 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:53:29  

Additional Information
 Earth MOID = 1.76486 au 
 Jupiter MOID = 1.88858 au 
 T_jup = 3.238 
[ 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 13.5   n/a MPO359208  
diameter diameter 6.749 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66941 (1999 WO11)          Discovered 1999-Nov-29 by Shiozawa, H., Urata, T. at Nachi-Katsuura
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 WO11 = 1998 QU72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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