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268457 (2005 WT93)
Classification: Main-belt Asteroid          SPK-ID: 2268457
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470972389964484 7.5797e-08  
a 3.102814831116793 4.6741e-08 au
q 2.336117853230602 2.406e-07 au
i 23.8548668040458 9.5603e-06 deg
node 281.9008014978718 2.0219e-05 deg
peri 270.52057572 2.9725e-05 deg
M 175.5054606442918 2.8688e-05 deg
tp 2458027.259108984062
(2017-Sep-30.75910898)
0.00014643 TDB
period 1996.329455958344
5.47
4.5109e-05
1.235e-07
d
yr
n .1803309563586943 4.0748e-09 deg/d
Q 3.869511809002983 5.829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      6335 days (17.34 yr)  
   first obs. used      2002-06-23  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:16:32  

Additional Information
 Earth MOID = 1.4772 au 
 Jupiter MOID = 1.94449 au 
 T_jup = 3.046 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457336.5 (2015-Nov-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .24682182290377 7.5923e-08  
q 2.338295241219881 2.4095e-07 au
tp 2458028.441186573494
(2017-Oct-01.94118657)
0.00014668 TDB
node 281.9407885453339 2.023e-05 deg
peri 270.70001991097 2.9778e-05 deg
i 23.83930416391886 9.5578e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      6335 days (17.34 yr)  
   first obs. used      2002-06-23  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:16:32  

Additional Information
 Jupiter MOID = 1.94449 au 
 T_jup = 3.046 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.764355062725945E-15 -1.809733934569947E-14 -5.755898559725599E-12 -4.334307348517097E-14 -9.147337126464526E-13 9.238825090564473E-15
q -1.809733934569947E-14 5.80574718403934E-14 2.052864460375148E-11 1.498062005561101E-13 3.155911512437582E-12 -2.370628326916325E-14
tp -5.755898559725599E-12 2.052864460375148E-11 2.151551890805199E-8 1.117157709908049E-10 3.298968734506248E-9 -4.365167173113921E-12
node -4.334307348517097E-14 1.498062005561101E-13 1.117157709908049E-10 4.092492141734983E-10 -3.553672610400382E-10 8.408275533171737E-11
peri -9.147337126464526E-13 3.155911512437582E-12 3.298968734506248E-9 -3.553672610400382E-10 8.867038942669163E-10 -7.79305407643043E-11
i 9.238825090564473E-15 -2.370628326916325E-14 -4.365167173113921E-12 8.408275533171737E-11 -7.79305407643043E-11 9.135073898626683E-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 14.5   n/a MPO454994  

268457 (2005 WT93)          Discovered 2005-Nov-25 by NEAT at Palomar
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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