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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 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 
[ show covariance matrix ]

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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