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66681 (1999 TN33)
Classification: Main-belt Asteroid          SPK-ID: 2066681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2854776837028976 7.217e-08  
a 2.58187045801299 2.1517e-08 au
q 1.844804060038502 1.994e-07 au
i 3.585394073119067 6.4302e-06 deg
node 215.6664849153799 6.69e-05 deg
peri 79.33801315219566 6.8267e-05 deg
M 40.35270770436804 1.8877e-05 deg
tp 2458830.648150516447
(2019-Dec-13.14815052)
7.7663e-05 TDB
period 1515.305150327249
4.15
1.8942e-05
5.186e-08
d
yr
n .2375759099889904 2.9698e-09 deg/d
Q 3.318936855987477 2.7659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      9156 days (25.07 yr)  
   first obs. used      1994-04-16  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51635  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:28:41  

Additional Information
 Earth MOID = .83303 au 
 Jupiter MOID = 1.91844 au 
 T_jup = 3.363 
[ 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 15.9   n/a MPO474545  
rotation period rot_per 1.15 h n/a LCDB (Rev. 2019-August); 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.]

66681 (1999 TN33)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TN33 = 2002 EW60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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