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249953 (2001 TG228)
Classification: Main-belt Asteroid          SPK-ID: 2249953
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09539974796608439 6.5081e-08  
a 2.768593259860047 2.3427e-08 au
q 2.504470160648798 1.8829e-07 au
i 3.302048809296895 5.7673e-06 deg
node 218.4839783388348 0.00010881 deg
peri 111.5119640224256 0.00011359 deg
M 54.62165355047816 3.0262e-05 deg
tp 2458745.200769776784
(2019-Sep-18.70076978)
0.00014161 TDB
period 1682.624323985762
4.61
2.1357e-05
5.847e-08
d
yr
n .2139515011569786 2.7156e-09 deg/d
Q 3.032716359071296 2.5662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      6608 days (18.09 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60477  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:07  

Additional Information
 Earth MOID = 1.49593 au 
 Jupiter MOID = 2.26064 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457247.5 (2015-Aug-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09781776088492108 6.5039e-08  
q 2.497815658774618 1.8881e-07 au
tp 2457063.178218920566
(2015-Feb-09.67821892)
0.00014012 TDB
node 218.5128655236188 0.00010881 deg
peri 111.7297260579573 0.00011334 deg
i 3.300917591668362 5.7726e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      6608 days (18.09 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60477  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:07  

Additional Information
 Jupiter MOID = 2.26064 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.230052318316774E-15 -1.221056227487128E-14 4.232162713824167E-13 -2.863152577631662E-15 -1.396286058615702E-14 -4.630917105542744E-15
q -1.221056227487128E-14 3.564814607136585E-14 -1.81673791298039E-12 9.690744410273236E-15 -8.930588396425321E-14 1.36827805244231E-14
tp 4.232162713824167E-13 -1.81673791298039E-12 1.96338878736663E-8 2.00911572788318E-11 4.488050788605249E-9 -1.229776878139957E-12
node -2.863152577631662E-15 9.690744410273236E-15 2.00911572788318E-11 1.184059024614793E-8 -1.181547343624126E-8 -1.171520009066435E-10
peri -1.396286058615702E-14 -8.930588396425321E-14 4.488050788605249E-9 -1.181547343624126E-8 1.284691361934226E-8 1.168081634223951E-10
i -4.630917105542744E-15 1.36827805244231E-14 -1.229776878139957E-12 -1.171520009066435E-10 1.168081634223951E-10 3.3322582545408E-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 16.6   n/a MPO440261  

249953 (2001 TG228)          Discovered 2001-Oct-15 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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