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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3540582849463473 6.3356e-08  
a 2.671066132084156 1.3731e-08 au
q 1.725353038380166 1.7398e-07 au
i 4.564982406126224 5.5754e-06 deg
node 132.1376555874149 7.9666e-05 deg
peri 243.8292074134119 8.0098e-05 deg
M 132.1669711956518 6.2082e-06 deg
tp 2458415.109291662082
(2018-Oct-23.60929166)
2.67e-05 TDB
period 1594.503173487143
4.37
1.2295e-05
3.366e-08
d
yr
n .2257756560074371 1.7409e-09 deg/d
Q 3.616779225788146 1.8592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8570 days (23.46 yr)  
   first obs. used      1996-08-15  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:12:10  

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 1.84805249775301 1.84805199764926 1.84805299786078 0.496452025722421 n/a 2444843.019235116 0.717392731321002 216.571693386522 19.341199410482 -85.8146972935282 14252561.8363575 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 14:12:21 2020-Feb-25 14:12
2064-Oct-05 08:32 00:01 Jupiter 1.85233291787231 1.85233236300884 1.8523334727378 0.451197939785078 n/a 2475198.855431863 1.07472759557259 192.24101749365 23.8471611109643 -85.7817229550076 11586044.505828 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 14:12:21 2020-Feb-25 14:12
2147-Nov-15 20:56 00:03 Jupiter 1.85096724747391 1.85096658850339 1.85096790644501 0.398080653322918 n/a 2505554.372038596 2.73200479535466 219.738970658892 31.912962095017 -87.9352473595665 8668987.65560372 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 14:12:21 2020-Feb-25 14:12

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