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117991 (1033 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2117991
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634028757142454 5.6004e-08  
a 2.80314665772406 1.8201e-08 au
q 2.345104432803173 1.6246e-07 au
i 9.309754088479375 6.0594e-06 deg
node 185.347712218242 3.0569e-05 deg
peri 153.5278291489847 3.4503e-05 deg
M 355.401668741167 1.7128e-05 deg
tp 2459022.396006360387
(2020-Jun-21.89600636)
8.167e-05 TDB
period 1714.222365906705
4.69
1.6696e-05
4.571e-08
d
yr
n .2100077604632027 2.0454e-09 deg/d
Q 3.261188882644947 2.1175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      16670 days (45.64 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53644  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:55:14  

Additional Information
 Earth MOID = 1.34112 au 
 Jupiter MOID = 2.18443 au 
 T_jup = 3.285 
[ 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 15.3   n/a MPO436566  

117991 (1033 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

[ show close-approach data ]
Alternate Designations
 1033 T-2 = 2001 QB130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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