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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491188628418128 4.177e-08  
a 2.554906240660399 1.1764e-08 au
q 2.173921527385669 1.0929e-07 au
i 8.507021326057322 4.5941e-06 deg
node 138.4643416392453 2.2928e-05 deg
peri 322.2601593025421 2.6231e-05 deg
M 204.3181438339472 1.4561e-05 deg
tp 2459245.554453179366
(2021-Jan-31.05445318)
6.2763e-05 TDB
period 1491.629203706838
4.08
1.0302e-05
2.821e-08
d
yr
n .2413468435086726 1.6669e-09 deg/d
Q 2.935890953935128 1.3518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      8310 days (22.75 yr)  
   first obs. used      1997-01-31  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 02:57:44  

Additional Information
 Earth MOID = 1.19768 au 
 Jupiter MOID = 2.21267 au 
 T_jup = 3.407 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456883.5 (2014-Aug-14.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480212773044644 4.1564e-08  
q 2.177289465317889 1.0862e-07 au
tp 2456258.788902934187
(2012-Nov-27.28890293)
5.4354e-05 TDB
node 138.5952551782508 2.2937e-05 deg
peri 321.697195375814 2.6334e-05 deg
i 8.503779936551718 4.5918e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      8310 days (22.75 yr)  
   first obs. used      1997-01-31  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 02:57:44  

Additional Information
 Jupiter MOID = 2.21267 au 
 T_jup = 3.407 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.727592665887366E-15 -4.496297294739948E-15 5.425907248389507E-13 -1.007693229396249E-14 1.253098067004663E-13 1.715034158156438E-15
q -4.496297294739948E-15 1.179773821636443E-14 -1.224539645727337E-12 2.604690683857292E-14 -2.763542816068467E-13 -4.530694095593228E-15
tp 5.425907248389507E-13 -1.224539645727337E-12 2.954406218979492E-9 -1.123632203730632E-11 7.129936075228274E-10 -2.827720422256943E-12
node -1.007693229396249E-14 2.604690683857292E-14 -1.123632203730632E-11 5.261153695740324E-10 -5.224077284483183E-10 -1.613178910206606E-11
peri 1.253098067004663E-13 -2.763542816068467E-13 7.129936075228274E-10 -5.224077284483183E-10 6.934671739373553E-10 1.522255155965437E-11
i 1.715034158156438E-15 -4.530694095593228E-15 -2.827720422256943E-12 -1.613178910206606E-11 1.522255155965437E-11 2.108442076253238E-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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