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277474 (2005 WE3)
Classification: Main-belt Asteroid          SPK-ID: 2277474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2253463518331612 8.0171e-08  
a 2.615477117444263 4.2248e-08 au
q 2.026088890725085 2.276e-07 au
i 8.28198493535098 9.7303e-06 deg
node 173.2085708951154 5.331e-05 deg
peri 198.1248904698833 5.8163e-05 deg
M 228.6765247046598 3.516e-05 deg
tp 2459764.091819191862
(2022-Jul-03.59181919)
0.00016262 TDB
period 1544.986945043707
4.23
3.7434e-05
1.025e-07
d
yr
n .2330116776422442 5.6457e-09 deg/d
Q 3.204865344163439 5.1768e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      4814 days (13.18 yr)  
   first obs. used      2005-10-26  
   last obs. used      2018-12-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:01:03  

Additional Information
 Earth MOID = 1.0259 au 
 Jupiter MOID = 2.26039 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456371.5 (2013-Mar-20.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2222872589406236 7.9757e-08  
q 2.036364599294049 2.264e-07 au
tp 2456669.374917167315
(2014-Jan-11.87491717)
0.0001072 TDB
node 173.2803573236398 5.3449e-05 deg
peri 197.6905113098184 5.8473e-05 deg
i 8.263154300672415 9.7264e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      4814 days (13.18 yr)  
   first obs. used      2005-10-26  
   last obs. used      2018-12-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:01:03  

Additional Information
 Jupiter MOID = 2.26039 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.361139180806819E-15 -1.790993584902713E-14 -5.610738860543569E-12 -7.32372361840644E-14 -1.195604779412627E-12 -1.211659069299255E-14
q -1.790993584902713E-14 5.12553286830705E-14 1.690380725656331E-11 2.143570260407879E-13 3.572649695374896E-12 3.633352582417738E-14
tp -5.610738860543569E-12 1.690380725656331E-11 1.149137409468938E-8 1.15874555765503E-10 2.602204285547821E-9 1.354954519947734E-11
node -7.32372361840644E-14 2.143570260407879E-13 1.15874555765503E-10 2.856795655985746E-9 -2.799257344899712E-9 -2.488902721147258E-10
peri -1.195604779412627E-12 3.572649695374896E-12 2.602204285547821E-9 -2.799257344899712E-9 3.419090176226956E-9 2.492604342369541E-10
i -1.211659069299255E-14 3.633352582417738E-14 1.354954519947734E-11 -2.488902721147258E-10 2.492604342369541E-10 9.460242066877284E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO470934  

277474 (2005 WE3)          Discovered 2005-Nov-20 by LONEOS at Anderson Mesa
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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