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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02119709028702172 9.7986e-08  
a 2.677744179615355 3.6266e-08 au
q 2.620983794474502 2.6127e-07 au
i 10.16324619979145 8.5754e-06 deg
node 276.3322990066589 4.5083e-05 deg
peri 207.0447679355738 0.00018626 deg
M 351.6213169669555 0.00018183 deg
tp 2458637.749917343177
(2019-Jun-03.24991734)
0.00080874 TDB
period 1600.486638610916
4.38
3.2514e-05
8.902e-08
d
yr
n .2249315872530175 4.5696e-09 deg/d
Q 2.734504564756209 3.7035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      6171 days (16.90 yr)  
   first obs. used      2002-02-07  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63747  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:07:01  

Additional Information
 Earth MOID = 1.6407 au 
 Jupiter MOID = 2.36315 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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