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JPL Small-Body Database Browser
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66725 (1999 TH109)
Classification: Main-belt Asteroid          SPK-ID: 2066725
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1279934647468122 4.2425e-08  
a 2.688572283965159 2.1898e-08 au
q 2.344452602118208 1.1208e-07 au
i 12.36049003283892 6.3092e-06 deg
node 306.4890560188424 2.1432e-05 deg
peri 312.9965019041243 4.2368e-05 deg
M 333.0950630234202 4.3583e-05 deg
tp 2459120.840131313375
(2020-Sep-28.34013131)
0.00019595 TDB
period 1610.204376636382
4.41
1.9672e-05
5.386e-08
d
yr
n .2235741035259249 2.7314e-09 deg/d
Q 3.03269196581211 2.4701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      650  
   data-arc span      7160 days (19.60 yr)  
   first obs. used      1999-07-23  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:35:36  

Additional Information
 Earth MOID = 1.3472 au 
 Jupiter MOID = 2.16437 au 
 T_jup = 3.328 
[ 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 14.8   n/a MPO333374  

66725 (1999 TH109)          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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