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74837 (1999 TD33)
Classification: Main-belt Asteroid          SPK-ID: 2074837
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1731918569033528 4.0826e-08  
a 2.373683556706009 8.9321e-09 au
q 1.96258089381914 9.9754e-08 au
i 2.243025968709967 4.3173e-06 deg
node 339.2031152783296 9.4527e-05 deg
peri 341.7085449241169 9.5137e-05 deg
M 271.4863865007712 1.1397e-05 deg
tp 2459328.928040281798
(2021-Apr-24.42804028)
4.3059e-05 TDB
period 1335.772993862437
3.66
7.5397e-06
2.064e-08
d
yr
n .2695068710432952 1.5212e-09 deg/d
Q 2.784786219592878 1.0479e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1998-04-29  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5317  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:08:57  

Additional Information
 Earth MOID = .950001 au 
 Jupiter MOID = 2.51914 au 
 T_jup = 3.521 
[ 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 16.4   n/a MPO263910  
diameter diameter 3.302 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.028   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74837 (1999 TD33)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/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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