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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2733992668362089 4.2458e-08  
a 2.722734223887612 2.3438e-08 au
q 1.978340683286885 1.1929e-07 au
i 13.26079306428149 5.9132e-06 deg
node 1.024211350151704 2.5081e-05 deg
peri 58.2326167705479 3.0753e-05 deg
M 258.2516997322188 1.9085e-05 deg
tp 2459464.300235205900
(2021-Sep-06.80023521)
9.1774e-05 TDB
period 1640.99138987774
4.49
2.1189e-05
5.801e-08
d
yr
n .2193795788452134 2.8327e-09 deg/d
Q 3.46712776448834 2.9846e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:01:45  

Additional Information
 Earth MOID = 1.02378 au 
 Jupiter MOID = 2.11595 au 
 T_jup = 3.266 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457739.5 (2016-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2765004696060342 4.2719e-08  
q 1.966334630724973 1.2035e-07 au
tp 2457823.674260189558
(2017-Mar-11.17426019)
7.3497e-05 TDB
node 1.368601085710768 2.506e-05 deg
peri 57.62934500059106 3.0503e-05 deg
i 13.29016523000358 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:01:45  

Additional Information
 Jupiter MOID = 2.11595 au 
 T_jup = 3.266 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.824930870353534E-15 -5.092976521599354E-15 -1.336272676987631E-14 1.504131627072889E-14 5.926951800838483E-14 -4.222525445558923E-15
q -5.092976521599354E-15 1.448507063177552E-14 9.099367821062351E-13 -4.899064487702052E-14 3.376548890699209E-14 1.588597143802249E-14
tp -1.336272676987631E-14 9.099367821062351E-13 5.401787387796197E-9 -3.30153933700062E-11 1.310755368490418E-9 1.295716551540016E-11
node 1.504131627072889E-14 -4.899064487702052E-14 -3.30153933700062E-11 6.279936387460786E-10 -6.171471482591768E-10 -4.261200016660749E-11
peri 5.926951800838483E-14 3.376548890699209E-14 1.310755368490418E-9 -6.171471482591768E-10 9.304543967231312E-10 4.428175086448355E-11
i -4.222525445558923E-15 1.588597143802249E-14 1.295716551540016E-11 -4.261200016660749E-11 4.428175086448355E-11 3.495106338859622E-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 16.3   n/a MPO476592  

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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