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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2251744818187967 8.015e-08  
a 2.615788267173151 4.2357e-08 au
q 2.026779499564749 2.2759e-07 au
i 8.281391299090373 9.73e-06 deg
node 173.2063360137664 5.3312e-05 deg
peri 198.1340605002942 5.8174e-05 deg
M 182.0603458798654 3.4231e-05 deg
tp 2459764.287504987130
(2022-Jul-03.78750499)
0.00016276 TDB
period 1545.262651852336
4.23
3.7533e-05
1.028e-07
d
yr
n .2329701035409489 5.6587e-09 deg/d
Q 3.204797034781554 5.1895e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59097  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:04:12  

Additional Information
 Earth MOID = 1.02809 au 
 Jupiter MOID = 2.25938 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456371.5 (2013-Mar-20.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2222872578026421 7.9757e-08  
q 2.036364586955722 2.264e-07 au
tp 2456669.374828299801
(2014-Jan-11.87482830)
0.0001072 TDB
node 173.2803524831868 5.3449e-05 deg
peri 197.6904912254569 5.8473e-05 deg
i 8.263147535200355 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59097  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:04:12  

Additional Information
 Jupiter MOID = 2.25938 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.361144176195397E-15 -1.79099497618918E-14 -5.610740773936376E-12 -7.323738423355863E-14 -1.195605145138314E-12 -1.211657946311726E-14
q -1.79099497618918E-14 5.125536734282931E-14 1.690381156008543E-11 2.143573792911357E-13 3.572650556072941E-12 3.633350551495128E-14
tp -5.610740773936376E-12 1.690381156008543E-11 1.149136832346528E-8 1.158745855408127E-10 2.602203068273211E-9 1.354953380784594E-11
node -7.323738423355863E-14 2.143573792911357E-13 1.158745855408127E-10 2.856799889724711E-9 -2.799261579319448E-9 -2.48890473298638E-10
peri -1.195605145138314E-12 3.572650556072941E-12 2.602203068273211E-9 -2.799261579319448E-9 3.419094167924706E-9 2.492606357743032E-10
i -1.211657946311726E-14 3.633350551495128E-14 1.354953380784594E-11 -2.48890473298638E-10 2.492606357743032E-10 9.460243221687999E-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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