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66718 (1999 TU104)
Classification: Main-belt Asteroid          SPK-ID: 2066718
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07692727282518512 3.3172e-08  
a 2.802504505562408 1.4728e-08 au
q 2.586915476869198 9.3215e-08 au
i 3.104008271169323 4.1825e-06 deg
node 293.222793129468 7.9097e-05 deg
peri 158.4742181243628 8.5982e-05 deg
M 121.8744314639273 3.2576e-05 deg
tp 2458620.366415298822
(2019-May-16.86641530)
0.0001549 TDB
period 1713.633351834257
4.69
1.3508e-05
3.698e-08
d
yr
n .2100799448228872 1.656e-09 deg/d
Q 3.018093534255617 1.5861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      9392 days (25.71 yr)  
   first obs. used      1994-09-04  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:27  

Additional Information
 Earth MOID = 1.60362 au 
 Jupiter MOID = 2.11381 au 
 T_jup = 3.318 
[ 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 15.29   n/a E2021B10  
rotation period rot_per 12.80 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.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

66718 (1999 TU104)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TU104 = 2001 BH38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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