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JPL Small-Body Database Browser
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277518 (2005 WD208)
Classification: Main-belt Asteroid          SPK-ID: 2277518
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04803617642906599 6.3408e-08  
a 2.559562269363107 3.0577e-08 au
q 2.4366106846108 1.7169e-07 au
i 2.016674316623018 6.5355e-06 deg
node 311.4151387703262 0.00030546 deg
peri 157.7042425161762 0.00033456 deg
M 71.6845581961134 0.0001381 deg
tp 2458302.668870559238
(2018-Jul-03.16887056)
0.00057224 TDB
period 1495.708550024758
4.10
2.6802e-05
7.338e-08
d
yr
n .2406886020635779 4.3129e-09 deg/d
Q 2.682513854115414 3.2045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      5368 days (14.70 yr)  
   first obs. used      2004-07-17  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65739  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:07:33  

Additional Information
 Earth MOID = 1.45369 au 
 Jupiter MOID = 2.36189 au 
 T_jup = 3.433 
[ 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 17.5   n/a MPO281476  

277518 (2005 WD208)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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