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JPL Small-Body Database Browser
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121366 (1999 TZ65)
Classification: Main-belt Asteroid          SPK-ID: 2121366
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1834922336288954 5.2674e-08  
a 3.113364847902157 2.3499e-08 au
q 2.542086577858904 1.722e-07 au
i 3.562129081000739 4.4873e-06 deg
node 238.2866166577155 8.9206e-05 deg
peri 94.06494031232431 8.9897e-05 deg
M 310.528937869794 1.2543e-05 deg
tp 2459276.235184795837
(2021-Mar-02.73518480)
7.1327e-05 TDB
period 2006.519816882853
5.49
2.2717e-05
6.22e-08
d
yr
n .1794151231256033 2.0313e-09 deg/d
Q 3.684643117945411 2.7811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      7161 days (19.61 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59291  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:58:49  

Additional Information
 Earth MOID = 1.53491 au 
 Jupiter MOID = 1.71567 au 
 T_jup = 3.189 
[ 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 14.9   n/a MPO436586  
diameter diameter 6.685 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.46913 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.052   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

121366 (1999 TZ65)          Discovered 1999-Oct-08 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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