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277492 (2005 WB87)
Classification: Main-belt Asteroid          SPK-ID: 2277492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02089705064134469 8.8348e-08  
a 2.676916486482028 3.4296e-08 au
q 2.620976827101363 2.2924e-07 au
i 10.16336772012509 7.902e-06 deg
node 276.3332356732383 4.4655e-05 deg
peri 206.6276206422856 0.00018959 deg
M 82.03822536045658 0.00018608 deg
tp 2458635.943860208594
(2019-Jun-01.44386021)
0.00082323 TDB
period 1599.744628168974
4.38
3.0743e-05
8.417e-08
d
yr
n .2250359173964201 4.3246e-09 deg/d
Q 2.732856145862693 3.5012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      6566 days (17.98 yr)  
   first obs. used      2002-02-07  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:12:10  

Additional Information
 Earth MOID = 1.64036 au 
 Jupiter MOID = 2.36323 au 
 T_jup = 3.355 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO427523  
diameter diameter 2.927 km 0.517 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

277492 (2005 WB87)          Discovered 2005-Nov-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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