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JPL Small-Body Database Browser
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277478 (2005 WM15)
Classification: Main-belt Asteroid          SPK-ID: 2277478
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363028927058258 5.8541e-08  
a 2.34640788894932 1.6727e-08 au
q 2.026585706217757 1.3544e-07 au
i 2.235415086493628 6.08e-06 deg
node 257.8787361639877 0.00018105 deg
peri 37.49057634997838 0.00018398 deg
M 22.61700100125306 2.8766e-05 deg
tp 2458518.022363241836
(2019-Feb-03.52236324)
0.00010488 TDB
period 1312.815489166483
3.59
1.4038e-05
3.843e-08
d
yr
n .274219799332629 2.9323e-09 deg/d
Q 2.666230071680882 1.9007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      6613 days (18.11 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49877  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:23:49  

Additional Information
 Earth MOID = 1.01042 au 
 Jupiter MOID = 2.50345 au 
 T_jup = 3.547 
[ 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 17.3   n/a MPO440345  

277478 (2005 WM15)          Discovered 2005-Nov-22 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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