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246333 (2007 TK238)
Classification: Main-belt Asteroid          SPK-ID: 2246333
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07801000280482112 4.2963e-08  
a 2.769474188568963 2.0682e-08 au
q 2.553427499350818 1.2689e-07 au
i 5.831663835581982 4.3243e-06 deg
node 52.76017787210427 4.5293e-05 deg
peri 13.45664271565237 5.5805e-05 deg
M 330.3766147353921 3.5428e-05 deg
tp 2459535.024501423042
(2021-Nov-16.52450142)
0.00016645 TDB
period 1683.427470116828
4.61
1.8858e-05
5.163e-08
d
yr
n .2138494270709604 2.3955e-09 deg/d
Q 2.985520877787108 2.2296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      6886 days (18.85 yr)  
   first obs. used      2002-10-01  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54189  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:42:21  

Additional Information
 Earth MOID = 1.56698 au 
 Jupiter MOID = 2.25303 au 
 T_jup = 3.326 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457792.5 (2017-Feb-08.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08019050323496309 4.3531e-08  
q 2.54819889644139 1.2912e-07 au
tp 2457840.287467434589
(2017-Mar-27.78746743)
0.00015079 TDB
node 52.89190731198407 4.5125e-05 deg
peri 11.30703943834703 5.4924e-05 deg
i 5.843407910762302 4.3318e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      6886 days (18.85 yr)  
   first obs. used      2002-10-01  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54189  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:42:21  

Additional Information
 Jupiter MOID = 2.25303 au 
 T_jup = 3.326 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.894943882441597E-15 -5.565939025356534E-15 -1.323849629236486E-12 -2.957120429657931E-15 -2.227928689289359E-13 -1.481034723955161E-15
q -5.565939025356534E-15 1.667095361420017E-14 4.9292880379139E-12 8.851591988814071E-15 8.674217176262796E-13 5.086794897361968E-15
tp -1.323849629236486E-12 4.9292880379139E-12 2.273883133364612E-8 1.101547272130894E-11 4.745150992029942E-9 9.354424013553207E-12
node -2.957120429657931E-15 8.851591988814071E-15 1.101547272130894E-11 2.036268376999273E-9 -2.023071565383996E-9 -7.728133538653249E-13
peri -2.227928689289359E-13 8.674217176262796E-13 4.745150992029942E-9 -2.023071565383996E-9 3.016656472667189E-9 2.71433712743755E-12
i -1.481034723955161E-15 5.086794897361968E-15 9.354424013553207E-12 -7.728133538653249E-13 2.71433712743755E-12 1.876415896000458E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.05   n/a E2021B55  
rotation period rot_per 1.93 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

246333 (2007 TK238)          Discovered 2007-Oct-10 by Charleston at Charleston
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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