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344766 (2003 WE87)
Classification: Main-belt Asteroid          SPK-ID: 2344766
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .272868738295896 4.2432e-08  
a 2.719548500797116 2.2771e-08 au
q 1.977468732650111 1.1905e-07 au
i 13.27340571071855 5.919e-06 deg
node .9556892136737797 2.5047e-05 deg
peri 58.50537496870131 3.08e-05 deg
M 344.9558336222325 2.0081e-05 deg
tp 2459464.955644967250
(2021-Sep-07.45564497)
9.2057e-05 TDB
period 1638.112180454831
4.48
2.0574e-05
5.633e-08
d
yr
n .2197651688909632 2.7602e-09 deg/d
Q 3.46162826894412 2.8984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6141 days (16.81 yr)  
   first obs. used      2003-11-21  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:33:37  

Additional Information
 Earth MOID = 1.02281 au 
 Jupiter MOID = 2.12315 au 
 T_jup = 3.267 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457739.5 (2016-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2765004697196559 4.2719e-08  
q 1.966334630057518 1.2035e-07 au
tp 2457823.674259955863
(2017-Mar-11.17425996)
7.3497e-05 TDB
node 1.368601041409057 2.506e-05 deg
peri 57.62934501396715 3.0503e-05 deg
i 13.2901652452046 5.9119e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6141 days (16.81 yr)  
   first obs. used      2003-11-21  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:33:37  

Additional Information
 Jupiter MOID = 2.12315 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.824931606559259E-15 -5.09297820848299E-15 -1.336328548490931E-14 1.504132549646517E-14 5.926943148423212E-14 -4.222530370376813E-15
q -5.09297820848299E-15 1.448507349992336E-14 9.099364679281181E-13 -4.89906541752012E-14 3.376523201669089E-14 1.588597897511754E-14
tp -1.336328548490931E-14 9.099364679281181E-13 5.401786351343972E-9 -3.301538249562133E-11 1.310755065329054E-9 1.295716430935606E-11
node 1.504132549646517E-14 -4.89906541752012E-14 -3.301538249562133E-11 6.279936338174406E-10 -6.171471408517608E-10 -4.261200151978109E-11
peri 5.926943148423212E-14 3.376523201669089E-14 1.310755065329054E-9 -6.171471408517608E-10 9.304542952646658E-10 4.428175122021427E-11
i -4.222530370376813E-15 1.588597897511754E-14 1.295716430935606E-11 -4.261200151978109E-11 4.428175122021427E-11 3.495106455183813E-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 16.38   n/a E2021B25  

344766 (2003 WE87)          Discovered 2003-Nov-21 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2003 WE87 = 2007 RM246 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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