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213690 (2002 TH229)
Classification: Main-belt Asteroid          SPK-ID: 2213690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048614106828919 4.1949e-08  
a 2.792013674716551 1.4916e-08 au
q 2.220037814668194 1.2183e-07 au
i 13.93741533604177 4.0698e-06 deg
node 185.238186258726 1.7079e-05 deg
peri 195.5758175278139 2.0408e-05 deg
M 342.6920956726316 1.0982e-05 deg
tp 2459282.425051593353
(2021-Mar-08.92505159)
5.2251e-05 TDB
period 1704.020198850476
4.67
1.3656e-05
3.739e-08
d
yr
n .2112651013426098 1.693e-09 deg/d
Q 3.363989534764909 1.7972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8435 days (23.09 yr)  
   first obs. used      1997-10-30  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:42  

Additional Information
 Earth MOID = 1.22345 au 
 Jupiter MOID = 2.10431 au 
 T_jup = 3.255 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457728.5 (2016-Dec-06.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077862286340319 4.2121e-08  
q 2.210490016366316 1.2268e-07 au
tp 2457579.329774722920
(2016-Jul-09.82977472)
4.7111e-05 TDB
node 185.4183080680976 1.7066e-05 deg
peri 195.5306447696556 2.0266e-05 deg
i 13.9515933656661 4.0724e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8435 days (23.09 yr)  
   first obs. used      1997-10-30  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:42  

Additional Information
 Jupiter MOID = 2.10431 au 
 T_jup = 3.255 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.7741557596158E-15 -5.146811797447836E-15 -2.878210006762299E-14 -3.498495058834458E-15 8.054497676849817E-14 -4.014228143344761E-15
q -5.146811797447836E-15 1.504981471492505E-14 1.633541010539264E-13 1.173331086346032E-14 -2.135793260826689E-13 1.244566814594874E-14
tp -2.878210006762299E-14 1.633541010539264E-13 2.219479636439218E-9 1.342242418822486E-11 5.254625365454646E-10 5.473334787362461E-12
node -3.498495058834458E-15 1.173331086346032E-14 1.342242418822486E-11 2.912387738793356E-10 -2.789966826017431E-10 -5.779142507144556E-12
peri 8.054497676849817E-14 -2.135793260826689E-13 5.254625365454646E-10 -2.789966826017431E-10 4.107007355897438E-10 6.749637957204634E-12
i -4.014228143344761E-15 1.244566814594874E-14 5.473334787362461E-12 -5.779142507144556E-12 6.749637957204634E-12 1.658412711241973E-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 15.38   n/a E2021B55  

213690 (2002 TH229)          Discovered 2002-Oct-07 by NEAT at Haleakala
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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