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266981 (2010 WO38)
Classification: Main-belt Asteroid          SPK-ID: 2266981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187405779171428 6.8609e-08  
a 2.194372375044718 1.6719e-08 au
q 1.933811331066495 1.536e-07 au
i 3.63410322022293 4.9089e-06 deg
node 103.7827258220792 0.00011264 deg
peri 228.3645411635356 0.00011457 deg
M 52.29816590294072 2.0646e-05 deg
tp 2458828.016373202811
(2019-Dec-10.51637320)
6.781e-05 TDB
period 1187.309431887676
3.25
1.3569e-05
3.715e-08
d
yr
n .3032065528424586 3.4652e-09 deg/d
Q 2.454933419022941 1.8704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      7955 days (21.78 yr)  
   first obs. used      1996-04-13  
   last obs. used      2018-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59531  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 08:45:14  

Additional Information
 Earth MOID = .925251 au 
 Jupiter MOID = 2.84281 au 
 T_jup = 3.658 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456628.5 (2013-Dec-02.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186329580417575 6.8333e-08  
q 1.934042139243493 1.5296e-07 au
tp 2456452.145614209822
(2013-Jun-08.64561421)
7.0198e-05 TDB
node 103.8159720133138 0.00011261 deg
peri 228.1322696703487 0.00011458 deg
i 3.634435586127122 4.9063e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      7955 days (21.78 yr)  
   first obs. used      1996-04-13  
   last obs. used      2018-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59531  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 08:45:14  

Additional Information
 Jupiter MOID = 2.84281 au 
 T_jup = 3.658 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.669356373783003E-15 -1.040473905005994E-14 2.033115472623857E-12 -3.978340831368889E-14 5.654641053679741E-13 -5.374725723430058E-15
q -1.040473905005994E-14 2.339752374924445E-14 -4.732606091083234E-12 9.30792470016706E-14 -1.314923466969155E-12 1.255484532775088E-14
tp 2.033115472623857E-12 -4.732606091083234E-12 4.927815722152981E-9 -7.67153605598685E-11 1.54298008233434E-9 -5.897265373742729E-12
node -3.978340831368889E-14 9.30792470016706E-14 -7.67153605598685E-11 1.268164560495614E-8 -1.267828203227765E-8 2.12218434934278E-10
peri 5.654641053679741E-13 -1.314923466969155E-12 1.54298008233434E-9 -1.267828203227765E-8 1.312796506689722E-8 -2.134660349943497E-10
i -5.374725723430058E-15 1.255484532775088E-14 -5.897265373742729E-12 2.12218434934278E-10 -2.134660349943497E-10 2.407214867353766E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO437228  

266981 (2010 WO38)          Discovered 2003-Jul-25 by NEAT at Palomar
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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