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21160 Saveriolombardi (1993 TJ)
Classification: Main-belt Asteroid          SPK-ID: 2021160
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05591946829239762 5.1653e-08  
a 3.01569736026755 1.6504e-08 au
q 2.847061167350602 1.572e-07 au
i 9.654615308688108 5.533e-06 deg
node 205.4606814599117 2.345e-05 deg
peri 319.0011844635035 4.0225e-05 deg
M 227.7792108223059 3.3773e-05 deg
tp 2459703.050107950185
(2022-May-03.55010795)
0.00018124 TDB
period 1912.846235716876
5.24
1.5702e-05
4.299e-08
d
yr
n .1882012224914059 1.5449e-09 deg/d
Q 3.184333553184499 1.7427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1758  
   data-arc span      10702 days (29.30 yr)  
   first obs. used      1991-04-13  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:42:13  

Additional Information
 Earth MOID = 1.85999 au 
 Jupiter MOID = 1.80822 au 
 T_jup = 3.224 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456692.5 (2014-Feb-04.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05368046769703036 5.2435e-08  
q 2.855683289798325 1.593e-07 au
tp 2455885.591337798922
(2011-Nov-20.09133780)
0.0001769 TDB
node 205.501754216891 2.3446e-05 deg
peri 320.9645058167421 4.0628e-05 deg
i 9.651270173415526 5.5371e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1758  
   data-arc span      10702 days (29.30 yr)  
   first obs. used      1991-04-13  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:42:13  

Additional Information
 Jupiter MOID = 1.80822 au 
 T_jup = 3.224 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.749396441215308E-15 -8.312273677321357E-15 2.238867892002401E-12 -3.304048206777411E-15 4.061921748762479E-13 3.046756572628168E-16
q -8.312273677321357E-15 2.537749434510712E-14 -6.350184868506606E-12 9.099743876751696E-15 -1.131925341339024E-12 1.408626246985224E-16
tp 2.238867892002401E-12 -6.350184868506606E-12 3.129438219590896E-8 -2.18265023204472E-12 5.88453491343144E-9 -4.572179676930634E-13
node -3.304048206777411E-15 9.099743876751696E-15 -2.18265023204472E-12 5.497274376334335E-10 -5.422222568966132E-10 -5.423991396074488E-11
peri 4.061921748762479E-13 -1.131925341339024E-12 5.88453491343144E-9 -5.422222568966132E-10 1.650601695687683E-9 5.356044256677045E-11
i 3.046756572628168E-16 1.408626246985224E-16 -4.572179676930634E-13 -5.423991396074488E-11 5.356044256677045E-11 3.065993990514368E-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 13.0   n/a MPO416932  

21160 Saveriolombardi           Discovered 1993 Oct. 10 by A. Vagnozzi at Stroncone.
An expert in physics and mathematics, Saverio Lombardi (b. 1924) has always shared his knowledge and experience with the astronomers at St. Lucia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 1993 TJ = 1998 QJ71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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