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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 
[ 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 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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1981-Aug-26 12:28 < 00:01 Jupiter 1.84805255399859 1.8480520237686 1.84805308423321 0.496451976292131 n/a 2444843.019290577 0.721051612582601 223.204609879094 19.9072146586659 -85.5106890467743 13841794.7601335 F 10 CATAB v2.0e-lin.ifort 2019-Jul-14 05:39:55 2019-Jul-14 05:39
2064-Oct-05 08:32 00:01 Jupiter 1.85233299167332 1.85233239549119 1.85233358785763 0.451197920067208 n/a 2475198.855601647 1.14388871386563 194.791365636099 25.4049139663613 -85.4142326921489 10870393.4666144 F 10 CATAB v2.0e-lin.ifort 2019-Jul-14 05:39:55 2019-Jul-14 05:39
2147-Nov-15 20:56 00:03 Jupiter 1.85096734323134 1.85096663106342 1.85096805539991 0.398080709258062 n/a 2505554.372304383 2.86113383664027 221.765364243364 34.3840215123387 -87.6762230331463 8044633.25424983 F 10 CATAB v2.0e-lin.ifort 2019-Jul-14 05:39:55 2019-Jul-14 05:39

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