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216660 (2003 WO138)
Classification: Main-belt Asteroid          SPK-ID: 2216660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2552590510705509 4.9155e-08  
a 2.268139857340305 8.8141e-09 au
q 1.689176629660324 1.0803e-07 au
i 6.467791541011372 4.5118e-06 deg
node 71.88054189491052 3.2475e-05 deg
peri 282.537081998004 3.3625e-05 deg
M 48.3081451393596 9.514e-06 deg
tp 2459033.074719923128
(2020-Jul-02.57471992)
3.2408e-05 TDB
period 1247.679882011571
3.42
7.2728e-06
1.991e-08
d
yr
n .2885355492144268 1.6819e-09 deg/d
Q 2.847103085020287 1.1064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      6266 days (17.16 yr)  
   first obs. used      2003-11-21  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:45  

Additional Information
 Earth MOID = .697822 au 
 Jupiter MOID = 2.62072 au 
 T_jup = 3.563 
[ 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 17.02   n/a E2021B55  

216660 (2003 WO138)          Discovered 2003-Nov-21 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 2003 WO138 = 2006 OA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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