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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494957238035138 4.1799e-08  
a 2.554374965064041 1.1652e-08 au
q 2.172506830796217 1.0941e-07 au
i 8.508409020722533 4.5944e-06 deg
node 138.4628390099554 2.2919e-05 deg
peri 322.2877094848603 2.6207e-05 deg
M 300.8803963608804 1.4886e-05 deg
tp 2459245.380618497860
(2021-Jan-30.88061850)
6.2606e-05 TDB
period 1491.16396647991
4.08
1.0203e-05
2.793e-08
d
yr
n .2414221427639696 1.652e-09 deg/d
Q 2.936243099331865 1.3394e-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 = 1.19609 au 
 Jupiter MOID = 2.21113 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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