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JPL Small-Body Database Browser
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266893 (2009 WA76)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266893
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1931265840044115 6.7239e-08  
a 3.951216136194527 7.1633e-08 au
q 3.188131261148168 2.8071e-07 au
i 3.35712772139409 1.0947e-05 deg
node 162.0101412434154 0.00012131 deg
peri 299.0307695261673 0.00012748 deg
M 48.42785742365736 3.22e-05 deg
tp 2458214.588819172473
(2018-Apr-06.08881917)
0.00025526 TDB
period 2868.762577756377
7.85
7.8013e-05
2.136e-07
d
yr
n .1254896458812396 3.4126e-09 deg/d
Q 4.714301011240885 8.5467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      8829 days (24.17 yr)  
   first obs. used      1995-02-03  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:47:22  

Additional Information
 Earth MOID = 2.20702 au 
 Jupiter MOID = .520027 au 
 T_jup = 3.024 
[ 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 15.5   n/a MPO433732  
diameter diameter 5.242 km 0.373 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.053   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

266893 (2009 WA76)          Discovered 2009-Nov-18 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WA76 = 2004 GB89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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