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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222164207643026 4.2849e-08  
a 3.070014284580559 1.8142e-08 au
q 2.694808127023842 1.3001e-07 au
i 6.61961240259705 3.8313e-06 deg
node 95.77320724036055 3.7849e-05 deg
peri 114.7608037884594 4.1566e-05 deg
M 68.9537276931504 1.5779e-05 deg
tp 2458624.173960530201
(2019-May-20.67396053)
8.6613e-05 TDB
period 1964.757798331262
5.38
1.7416e-05
4.768e-08
d
yr
n .1832286912441628 1.6241e-09 deg/d
Q 3.445220442137276 2.0359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      7298 days (19.98 yr)  
   first obs. used      2000-10-24  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:45:54  

Additional Information
 Earth MOID = 1.69748 au 
 Jupiter MOID = 1.55831 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457119.5 (2015-Apr-07.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120012997064322 4.3101e-08  
q 2.699480152028344 1.3012e-07 au
tp 2456659.246781126095
(2014-Jan-01.74678113)
9.2222e-05 TDB
node 95.80072019754893 3.7861e-05 deg
peri 114.2390158653573 4.1687e-05 deg
i 6.619127781070566 3.831e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      7298 days (19.98 yr)  
   first obs. used      2000-10-24  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:45:54  

Additional Information
 Jupiter MOID = 1.55831 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.857657826408314E-15 -5.568677745905432E-15 -9.169469689147163E-13 -1.472078236209947E-14 -2.120498826180249E-13 -1.691264680673957E-15
q -5.568677745905432E-15 1.693052181504203E-14 2.332852481947911E-12 4.941215502483459E-14 5.625231639568779E-13 6.409178036804252E-15
tp -9.169469689147163E-13 2.332852481947911E-12 8.504821284313759E-9 1.280735110206653E-11 1.638110204621225E-9 -3.169466371421887E-12
node -1.472078236209947E-14 4.941215502483459E-14 1.280735110206653E-11 1.433487204711764E-9 -1.420175947632874E-9 -4.580992684186679E-12
peri -2.120498826180249E-13 5.625231639568779E-13 1.638110204621225E-9 -1.420175947632874E-9 1.737794093506666E-9 4.127488354839069E-12
i -1.691264680673957E-15 6.409178036804252E-15 -3.169466371421887E-12 -4.580992684186679E-12 4.127488354839069E-12 1.467642911964723E-11

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

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