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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496427399074576 4.1452e-08  
a 2.554946019593269 9.6004e-09 au
q 2.172616896905679 1.0905e-07 au
i 8.508399565689404 4.2812e-06 deg
node 138.4609901976515 2.249e-05 deg
peri 322.2406410108626 2.4892e-05 deg
M 349.2062657896503 1.123e-05 deg
tp 2459245.223958830392
(2021-Jan-30.72395883)
4.6609e-05 TDB
period 1491.664040004139
4.08
8.4076e-06
2.302e-08
d
yr
n .2413412070984838 1.3603e-09 deg/d
Q 2.937275142280858 1.1037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1656  
   data-arc span      8814 days (24.13 yr)  
   first obs. used      1997-01-31  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51416  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:28:02  

Additional Information
 Earth MOID = 1.19607 au 
 Jupiter MOID = 2.2101 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 14.42   n/a MPCxxxxx  
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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