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JPL Small-Body Database Browser
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117992 (1039 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2117992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038347612404214 5.493e-08  
a 2.648253728270376 1.643e-08 au
q 2.108447561864328 1.4448e-07 au
i 9.612594228920013 9.2808e-06 deg
node 358.9530625597081 2.8389e-05 deg
peri 69.68334704820857 3.9141e-05 deg
M 164.1943662655912 2.3557e-05 deg
tp 2457882.551047087015
(2017-May-09.05104709)
0.00010081 TDB
period 1574.119922181752
4.31
1.4649e-05
4.011e-08
d
yr
n .2286992210231575 2.1283e-09 deg/d
Q 3.188059894676424 1.9779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      16282 days (44.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2018-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53564  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:21:23  

Additional Information
 Earth MOID = 1.14399 au 
 Jupiter MOID = 2.22619 au 
 T_jup = 3.342 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO257549  

117992 (1039 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1039 T-2 = 1999 UL40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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