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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3540582541269482 6.6997e-08  
a 2.671066136873741 1.4349e-08 au
q 1.725353123794612 1.8433e-07 au
i 4.564978006173861 5.5814e-06 deg
node 132.1376747243408 8.3218e-05 deg
peri 243.8291744824988 8.37e-05 deg
M 132.1669764039094 6.3503e-06 deg
tp 2458415.109267019267
(2018-Oct-23.60926702)
2.7676e-05 TDB
period 1594.503177775885
4.37
1.2848e-05
3.518e-08
d
yr
n .2257756554001674 1.8192e-09 deg/d
Q 3.616779149952869 1.9429e-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 = .732531 au 
 Jupiter MOID = 1.85856 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 = 1.85856 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

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