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20633 (1999 TU93)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020633
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1399254914344731 3.6396e-08  
a 3.210644334774013 1.9897e-08 au
q 2.761393348409452 1.1184e-07 au
i 3.431764880581788 3.9291e-06 deg
node 112.7764001197098 7.2399e-05 deg
peri 351.18034344136 7.4261e-05 deg
M 142.9739449346703 1.8756e-05 deg
tp 2458165.971593630868
(2018-Feb-16.47159363)
0.00010521 TDB
period 2101.293535896798
5.75
1.9533e-05
5.348e-08
d
yr
n .1713230416645991 1.5926e-09 deg/d
Q 3.659895321138574 2.2681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1586  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1993-08-15  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47757  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:01:39  

Additional Information
 Earth MOID = 1.77832 au 
 Jupiter MOID = 1.47973 au 
 T_jup = 3.173 
[ 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 13.5   n/a MPO474037  
diameter diameter 6.660 km 0.447 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.209   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20633 (1999 TU93)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TU93 = 1998 ML 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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