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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163545546214858 6.1999e-08  
a 3.054391686122537 3.5016e-08 au
q 2.698999301844181 1.8726e-07 au
i 2.878916024090036 7.8645e-06 deg
node 13.25278816280234 0.00011148 deg
peri 52.74723184686575 0.00011758 deg
M 173.9946903874042 3.5963e-05 deg
tp 2458258.135287975188
(2018-May-19.63528798)
0.00018979 TDB
period 1949.779591397758
5.34
3.3528e-05
9.179e-08
d
yr
n .184636254060862 3.175e-09 deg/d
Q 3.409784070400894 3.909e-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 = 1.71325 au 
 Jupiter MOID = 1.88134 au 
 T_jup = 3.224 
[ 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 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

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