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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2251942363711399 4.4613e-08  
a 2.320854882918642 7.1542e-09 au
q 1.798211739831547 1.0506e-07 au
i 9.221633824769738 6.0345e-06 deg
node 339.62146625232 2.26e-05 deg
peri 55.820013878571 2.7037e-05 deg
M 291.8362301460083 1.2795e-05 deg
tp 2458845.024008460027
(2019-Dec-27.52400846)
4.6242e-05 TDB
period 1291.428617198979
3.54
5.9714e-06
1.635e-08
d
yr
n .2787610520671407 1.289e-09 deg/d
Q 2.843498026005736 8.7653e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1343  
   data-arc span      10153 days (27.80 yr)  
   first obs. used      1991-12-01  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52273  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:04:04  

Additional Information
 Earth MOID = .821256 au 
 Jupiter MOID = 2.66278 au 
 T_jup = 3.527 
[ 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 14.1   n/a MPO449006  
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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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