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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .149495765046574 4.1645e-08  
a 2.554374968181667 1.127e-08 au
q 2.172506728097531 1.092e-07 au
i 8.508407388208949 4.5151e-06 deg
node 138.4628300197396 2.2916e-05 deg
peri 322.2877145778606 2.6006e-05 deg
M 300.8804023049501 1.4166e-05 deg
tp 2459245.380594325115
(2021-Jan-30.88059433)
5.9535e-05 TDB
period 1491.163969209868
4.08
9.8682e-06
2.702e-08
d
yr
n .2414221423219844 1.5977e-09 deg/d
Q 2.936243208265803 1.2954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      8674 days (23.75 yr)  
   first obs. used      1997-01-31  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:59:36  

Additional Information
 Earth MOID = 1.19609 au 
 Jupiter MOID = 2.21113 au 
 T_jup = 3.407 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456926.5 (2014-Sep-26.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1479934553307826 4.1411e-08  
q 2.177430023104446 1.0842e-07 au
tp 2456258.807641804538
(2012-Nov-27.30764180)
5.2451e-05 TDB
node 138.5944557944119 2.2928e-05 deg
peri 321.7080802640916 2.6123e-05 deg
i 8.503854925897555 4.5121e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      8674 days (23.75 yr)  
   first obs. used      1997-01-31  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:59:36  

Additional Information
 Jupiter MOID = 2.21113 au 
 T_jup = 3.407 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.71483596361894E-15 -4.472879922627555E-15 4.93453474830005E-13 -9.959886408506173E-15 1.142002418401453E-13 1.382176852244235E-15
q -4.472879922627555E-15 1.175472241484065E-14 -1.135945793935199E-12 2.590400450908889E-14 -2.56410134487178E-13 -3.667665609784662E-15
tp 4.93453474830005E-13 -1.135945793935199E-12 2.751080732407641E-9 -1.033795109031979E-11 6.665088040972651E-10 -2.774452328096179E-12
node -9.959886408506173E-15 2.590400450908889E-14 -1.033795109031979E-11 5.256862652201872E-10 -5.217809941544974E-10 -1.624537887964145E-11
peri 1.142002418401453E-13 -2.56410134487178E-13 6.665088040972651E-10 -5.217809941544974E-10 6.824168928217811E-10 1.535505625807798E-11
i 1.382176852244235E-15 -3.667665609784662E-15 -2.774452328096179E-12 -1.624537887964145E-11 1.535505625807798E-11 2.035862539844828E-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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