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JPL Small-Body Database Browser
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277485 (2005 WB57)
Classification: Main-belt Asteroid          SPK-ID: 2277485
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 .3538235286956561 6.7005e-08  
a 2.671719346899756 1.4259e-08 au
q 1.72640217989523 1.8433e-07 au
i 4.564230393151377 5.5802e-06 deg
node 132.1363935861999 8.3228e-05 deg
peri 243.8718459849766 8.3711e-05 deg
M 41.84825101669536 6.2703e-06 deg
tp 2458415.078755692179
(2018-Oct-23.57875569)
2.7718e-05 TDB
period 1595.088117880601
4.37
1.2769e-05
3.496e-08
d
yr
n .2256928604535863 1.8068e-09 deg/d
Q 3.617036513904281 1.9304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      8174 days (22.38 yr)  
   first obs. used      1996-08-15  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:39:52  

Additional Information
 Earth MOID = .732806 au 
 Jupiter MOID = 1.85511 au 
 T_jup = 3.284 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457141.5 (2015-Apr-29.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3500375902244516 6.6042e-08  
q 1.739594546231049 1.8063e-07 au
tp 2456813.574501021774
(2014-Jun-05.07450102)
3.2271e-05 TDB
node 132.3630637394546 8.263e-05 deg
peri 243.1667129274228 8.3181e-05 deg
i 4.57224296740562 5.5971e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      8174 days (22.38 yr)  
   first obs. used      1996-08-15  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 05:39:52  

Additional Information
 Jupiter MOID = 1.85511 au 
 T_jup = 3.284 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.361521515524375E-15 -1.19180205763184E-14 4.264740380391881E-13 1.273418093554773E-13 2.329996930529342E-14 -1.457416393923107E-14
q -1.19180205763184E-14 3.262581736836438E-14 -1.232588300436793E-12 -3.482319611627892E-13 -7.474247610693869E-14 4.025360220120246E-14
tp 4.264740380391881E-13 -1.232588300436793E-12 1.041388390387681E-9 -1.540608193078632E-12 3.482289488855187E-10 -1.759959082880495E-12
node 1.273418093554773E-13 -3.482319611627892E-13 -1.540608193078632E-12 6.827636560664689E-9 -6.806260677729622E-9 8.323451556911023E-11
peri 2.329996930529342E-14 -7.474247610693869E-14 3.482289488855187E-10 -6.806260677729622E-9 6.919082630341735E-9 -8.362897910903868E-11
i -1.457416393923107E-14 4.025360220120246E-14 -1.759959082880495E-12 8.323451556911023E-11 -8.362897910903868E-11 3.132745657291908E-11

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 16.8   n/a MPO455059  

277485 (2005 WB57)          Discovered 2005-Nov-20 by LONEOS at Anderson Mesa
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 WB57 = 2002 AF146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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