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337680 (2001 TR209)
Classification: Main-belt Asteroid          SPK-ID: 2337680
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161492158812679 6.2203e-08  
a 3.055075566592631 3.4894e-08 au
q 2.700230935074877 1.8834e-07 au
i 2.878789878200165 7.8642e-06 deg
node 13.24758659942189 0.00011147 deg
peri 52.64440346963382 0.00011758 deg
M 210.3074010980128 3.6205e-05 deg
tp 2460207.515566236644
(2023-Sep-20.01556624)
0.00020179 TDB
period 1950.434463606041
5.34
3.3416e-05
9.149e-08
d
yr
n .1845742611286809 3.1622e-09 deg/d
Q 3.409920198110385 3.8947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1998-02-22  
   last obs. used      2020-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:06:40  

Additional Information
 Earth MOID = 1.71476 au 
 Jupiter MOID = 1.88202 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458051.5 (2017-Oct-25.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1166596646015423 6.1687e-08  
q 2.69988218121225 1.8622e-07 au
tp 2458260.217152457965
(2018-May-21.71715246)
0.00018991 TDB
node 13.27182005148887 0.00011147 deg
peri 53.16826460050986 0.00011756 deg
i 2.878703631062345 7.8636e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1998-02-22  
   last obs. used      2020-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:06:40  

Additional Information
 Jupiter MOID = 1.88202 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.805335362000656E-15 -1.13308942587438E-14 -4.247179057958134E-12 -2.512745537616994E-14 -9.54530843368319E-13 -6.775506189773619E-16
q -1.13308942587438E-14 3.467697062979382E-14 1.447835993974567E-11 8.054398127683835E-14 3.166984461358241E-12 1.741952185664783E-15
tp -4.247179057958134E-12 1.447835993974567E-11 3.606463662712528E-8 5.52172817448192E-11 7.11095468621899E-9 -1.31850501823278E-11
node -2.512745537616994E-14 8.054398127683835E-14 5.52172817448192E-11 1.242454949708242E-8 -1.239663676605173E-8 -9.906595331434856E-11
peri -9.54530843368319E-13 3.166984461358241E-12 7.11095468621899E-9 -1.239663676605173E-8 1.38199480612892E-8 9.642634713387387E-11
i -6.775506189773619E-16 1.741952185664783E-15 -1.31850501823278E-11 -9.906595331434856E-11 9.642634713387387E-11 6.183544289201119E-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 16.81   n/a E2021B25  
rotation period rot_per 4.97 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

337680 (2001 TR209)          Discovered 2001-Oct-12 by Ondrejov at Ondrejov
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

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Alternate Designations
 2001 TR209 = 1998 DK22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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