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JPL Small-Body Database Browser
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66791 (1999 TH233)
Classification: Main-belt Asteroid          SPK-ID: 2066791
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2203800011742496 1.0083e-07  
a 2.564535424064039 2.2222e-08 au
q 1.999363104297401 2.685e-07 au
i 10.50050914190078 9.8452e-06 deg
node 317.0126869621297 3.3091e-05 deg
peri 7.675719696199902 3.5968e-05 deg
M 39.56915654813515 2.2064e-05 deg
tp 2458835.620837549624
(2019-Dec-18.12083755)
9.0138e-05 TDB
period 1500.069843791829
4.11
1.9498e-05
5.338e-08
d
yr
n .2399888255136197 3.1193e-09 deg/d
Q 3.129707743830677 2.7119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      8198 days (22.44 yr)  
   first obs. used      1997-02-14  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:52:27  

Additional Information
 Earth MOID = .987626 au 
 Jupiter MOID = 2.21119 au 
 T_jup = 3.376 
[ 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 MPO253783  
diameter diameter 5.543 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66791 (1999 TH233)          Discovered 1999-Oct-03 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TH233 = 1999 RF206 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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