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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728916981235078 4.9572e-08  
a 2.374167522973736 9.4608e-09 au
q 1.963693668297124 1.1867e-07 au
i 2.242622420840261 5.1214e-06 deg
node 339.2029184920658 0.00011148 deg
peri 341.6945879343482 0.00011207 deg
M 163.6991547731972 1.1522e-05 deg
tp 2457992.911699186711
(2017-Aug-27.41169919)
4.2024e-05 TDB
period 1336.181537380774
3.66
7.9868e-06
2.187e-08
d
yr
n .2694244681045987 1.6104e-09 deg/d
Q 2.784641377650347 1.1097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      557  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      1998-04-29  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:52:08  

Additional Information
 Earth MOID = .950239 au 
 Jupiter MOID = 2.51665 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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