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9425 Marconcini (1996 CM7)
Classification: Main-belt Asteroid          SPK-ID: 2009425
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2253466517559697 4.3258e-08  
a 2.320988740615381 6.5351e-09 au
q 1.7979616991544 1.0219e-07 au
i 9.222044233625294 5.2971e-06 deg
node 339.6159646197221 2.0107e-05 deg
peri 55.85648960136426 2.5049e-05 deg
M 43.31969545172677 1.1987e-05 deg
tp 2458845.085737689650
(2019-Dec-27.58573769)
4.286e-05 TDB
period 1291.540345524194
3.54
5.4548e-06
1.493e-08
d
yr
n .2787369370593589 1.1772e-09 deg/d
Q 2.844015782076362 8.0077e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      10363 days (28.37 yr)  
   first obs. used      1991-12-01  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:11:12  

Additional Information
 Earth MOID = .821696 au 
 Jupiter MOID = 2.66452 au 
 T_jup = 3.526 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO502240  
diameter diameter 4.060 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9425 Marconcini           Discovered 1996 Feb. 14 by M. Tombelli and U. Munari at Cima Ekar.
Massimiliano Marconcini (1955) is an amateur astronomer of the Montelupo group. A 1988 architecture graduate from the University of Florence, he designed the public observatory of Montelupo.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

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