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89735 Tommei (2002 AM)
Classification: Main-belt Asteroid          SPK-ID: 2089735
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222164159032198 4.4085e-08  
a 3.07001428657743 1.8646e-08 au
q 2.694808143700256 1.348e-07 au
i 6.619612762807333 3.9111e-06 deg
node 95.77320146514396 3.9514e-05 deg
peri 114.7608086094435 4.3144e-05 deg
M 68.95372806597364 1.5796e-05 deg
tp 2458624.173958128290
(2019-May-20.67395813)
8.6748e-05 TDB
period 1964.757800248208
5.38
1.79e-05
4.901e-08
d
yr
n .1832286910653929 1.6693e-09 deg/d
Q 3.445220429454603 2.0925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      7218 days (19.76 yr)  
   first obs. used      2000-10-24  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:09:50  

Additional Information
 Earth MOID = 1.69748 au 
 Jupiter MOID = 1.55831 au 
 T_jup = 3.209 
[ 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 14.5   n/a MPO474776  
diameter diameter 7.077 km 0.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

89735 Tommei           Discovered 2002 Jan. 4 by A. Boattini and L. Tesi at San Marcello Pistoiese.
Giacomo Tommei (b. 1978) carried out research at the University of Pisa on the impact monitoring of near-earth objects. His research interests in celestial mechanics include the orbit determination and dynamics of NEOs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080520/MPCPages.arcLast Updated: 2008-05-22

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Alternate Designations
 2002 AM = 2000 UD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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