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JPL Small-Body Database Browser
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43957 Invernizzi (1997 CL13)
Classification: Main-belt Asteroid          SPK-ID: 2043957
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491188636889714 4.1764e-08  
a 2.554906240801023 1.1763e-08 au
q 2.173921525340913 1.0928e-07 au
i 8.50702131707054 4.5937e-06 deg
node 138.4643417170006 2.2923e-05 deg
peri 322.2601591625905 2.6227e-05 deg
M 204.3181437988158 1.4561e-05 deg
tp 2459245.554453378187
(2021-Jan-31.05445338)		 6.2762e-05 TDB
period 1491.629203829989
4.08		 1.0302e-05
2.821e-08		 d
yr
n .2413468434887466 1.6668e-09 deg/d
Q 2.935890956261133 1.3518e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1359  
   data-arc span      8326 days (22.80 yr)  
   first obs. used      1997-01-31  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:34:55  

Additional Information
 Earth MOID = 1.19768 au 
 Jupiter MOID = 2.21267 au 
 T_jup = 3.407 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456884.5 (2014-Aug-15.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480206883198491 4.1559e-08  
q 2.177292591437643 1.086e-07 au
tp 2456258.789460008609
(2012-Nov-27.28946001)		 5.4355e-05 TDB
node 138.5952322488784 2.2932e-05 deg
peri 321.697475243717 2.6329e-05 deg
i 8.503781862253751 4.5913e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1359  
   data-arc span      8326 days (22.80 yr)  
   first obs. used      1997-01-31  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:34:55  

Additional Information
 Jupiter MOID = 2.21267 au 
 T_jup = 3.407 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.72711182416256E-15 -4.495139624081269E-15 5.426161524324911E-13 -1.008494186060538E-14 1.253538271507446E-13 1.715641601703127E-15
q -4.495139624081269E-15 1.179495378107561E-14 -1.224602618667608E-12 2.606430746457562E-14 -2.764593271575154E-13 -4.531904353614498E-15
tp 5.426161524324911E-13 -1.224602618667608E-12 2.954426032892338E-9 -1.125646123183162E-11 7.130157933469365E-10 -2.825289730692954E-12
node -1.008494186060538E-14 2.606430746457562E-14 -1.125646123183162E-11 5.258553692036854E-10 -5.221555104318889E-10 -1.609982847097259E-11
peri 1.253538271507446E-13 -2.764593271575154E-13 7.130157933469365E-10 -5.221555104318889E-10 6.932205747931668E-10 1.519156495132446E-11
i 1.715641601703127E-15 -4.531904353614498E-15 -2.825289730692954E-12 -1.609982847097259E-11 1.519156495132446E-11 2.108048993376622E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO449274  
diameter diameter 3.526 km 0.665 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.325   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43957 Invernizzi           Discovered 1997 Feb. 7 by P. Sicoli and F. Manca at Sormano.
Italian amateur astronomer Luca Invernizzi (b. 1966) is founder of the Associazione Astrofili Valtellinesi and co-promoter of the "G. Piazzi" Observatory. Author of a book and many articles about astronomy in Italian newspapers and magazines, he is an active member of Cielobuio, an anti-light-pollution association.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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