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213075 (1999 TK90)
Classification: Main-belt Asteroid          SPK-ID: 2213075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021156419348439 4.845e-08  
a 2.412392871552756 1.1058e-08 au
q 1.924810537719829 1.1413e-07 au
i 7.350658645431879 4.8017e-06 deg
node 173.4162939709016 2.6889e-05 deg
peri 190.0509408845984 2.8398e-05 deg
M 238.7782765289047 9.7846e-06 deg
tp 2459661.338161280485
(2022-Mar-22.83816128)
3.9086e-05 TDB
period 1368.580921888417
3.75
9.41e-06
2.576e-08
d
yr
n .2630461920390204 1.8086e-09 deg/d
Q 2.899975205385683 1.3293e-08 au
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:14  

Additional Information
 Earth MOID = .92111 au 
 Jupiter MOID = 2.55803 au 
 T_jup = 3.480 
[ 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 16.32   n/a E2021B55  
rotation period rot_per 31.6746 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

213075 (1999 TK90)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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