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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1385622916733373 3.6348e-08  
a 3.214766167832986 1.9716e-08 au
q 2.769320800424135 1.1172e-07 au
i 3.43191541934948 3.9257e-06 deg
node 112.774741150664 7.233e-05 deg
peri 351.3890860179845 7.4244e-05 deg
M 176.986616148857 1.9137e-05 deg
tp 2458165.452130391052
(2018-Feb-15.95213039)
0.00010638 TDB
period 2105.341303015966
5.76
1.9368e-05
5.303e-08
d
yr
n .1709936528981258 1.5731e-09 deg/d
Q 3.660211535241837 2.2448e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1590  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1993-08-15  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:25:38  

Additional Information
 Earth MOID = 1.78609 au 
 Jupiter MOID = 1.47791 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 13.44   n/a E2021B10  
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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