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JPL Small-Body Database Browser
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447220 (2005 TO187)
Classification: Main-belt Asteroid          SPK-ID: 2447220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0747541031084616 1.4963e-07  
a 3.009664370356548 9.8302e-08 au
q 2.784679609693052 4.2196e-07 au
i 7.045964274687759 2.1971e-05 deg
node 227.4475069494942 0.00014781 deg
peri 247.4361529763434 0.00025208 deg
M 140.8861028439752 0.00021539 deg
tp 2457854.152328065030
(2017-Apr-10.65232807)
0.0011199 TDB
period 1907.109051019357
5.22
9.3435e-05
2.558e-07
d
yr
n .1887673910454039 9.2483e-09 deg/d
Q 3.234649131020045 1.0565e-07 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      4575 days (12.53 yr)  
   first obs. used      2005-10-06  
   last obs. used      2018-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:50:57  

Additional Information
 Earth MOID = 1.81107 au 
 Jupiter MOID = 1.9073 au 
 T_jup = 3.234 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456467.5 (2013-Jun-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07432399232216176 1.4175e-07  
q 2.782220188891344 3.9599e-07 au
tp 2455938.472950666688
(2012-Jan-11.97295067)
0.0010882 TDB
node 227.4956676923054 0.0001477 deg
peri 245.0447761250635 0.0002566 deg
i 7.049456807814912 2.203e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      4575 days (12.53 yr)  
   first obs. used      2005-10-06  
   last obs. used      2018-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:50:57  

Additional Information
 Jupiter MOID = 1.9073 au 
 T_jup = 3.234 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.009301658214943E-14 -5.485104028490472E-14 8.205958038123443E-11 2.559215474084009E-13 1.674121509317969E-11 1.885324354076131E-14
q -5.485104028490472E-14 1.568088044632772E-13 -1.896571347618699E-10 -6.068074733967411E-13 -3.899736347375387E-11 -3.66514558122561E-14
tp 8.205958038123443E-11 -1.896571347618699E-10 1.184283397951206E-6 1.851877905765921E-9 2.288179745789075E-7 4.215278332265764E-10
node 2.559215474084009E-13 -6.068074733967411E-13 1.851877905765921E-9 2.181540603853452E-8 -2.127507259046451E-8 -2.358221019666755E-9
peri 1.674121509317969E-11 -3.899736347375387E-11 2.288179745789075E-7 -2.127507259046451E-8 6.584195656156541E-8 2.421310610615054E-9
i 1.885324354076131E-14 -3.66514558122561E-14 4.215278332265764E-10 -2.358221019666755E-9 2.421310610615054E-9 4.853147934204191E-10

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 16.9   n/a E2015T31  

447220 (2005 TO187)          Discovered 2005-Oct-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Alternate Designations
 2005 TO187 = 2013 HD76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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