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66729 (1999 TH111)
Classification: Main-belt Asteroid          SPK-ID: 2066729
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05912615730851005 3.3968e-08  
a 2.624102295615625 1.3951e-08 au
q 2.468949210491433 9.3208e-08 au
i 13.59455139320341 4.194e-06 deg
node 216.0666744601769 1.6402e-05 deg
peri 241.2901706792807 4.793e-05 deg
M 272.3348851141574 4.826e-05 deg
tp 2459578.588853595566
(2021-Dec-30.08885360)
0.00020944 TDB
period 1552.635703171652
4.25
1.2382e-05
3.39e-08
d
yr
n .2318637908844996 1.849e-09 deg/d
Q 2.779255380739816 1.4776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      909  
   data-arc span      10095 days (27.64 yr)  
   first obs. used      1993-04-18  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:33  

Additional Information
 Earth MOID = 1.51179 au 
 Jupiter MOID = 2.38936 au 
 T_jup = 3.361 
[ 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 15.08   n/a E2021B10  
diameter diameter 3.302 km 0.662 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66729 (1999 TH111)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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