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42929 Francini (1999 TW9)
Classification: Main-belt Asteroid          SPK-ID: 2042929
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2117628389168357 5.9148e-08  
a 2.391218445746254 1.1582e-08 AU
q 1.884847239204724 1.4131e-07 AU
i 1.889891046804829 6.4759e-06 deg
node 330.0735894797157 0.00018263 deg
peri 24.29521699586322 0.00018304 deg
M 56.89040963237098 1.5528e-05 deg
tp 2456787.065871443730
(2014-May-09.56587144)
5.7528e-05 JED
period 1350.601740728846
3.70
9.8125e-06
2.687e-08
d
yr
n .2665478572578528 1.9365e-09 deg/d
Q 2.897589652287785 1.4035e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      23037 days (63.07 yr)  
   first obs. used      1951-11-28  
   last obs. used      2014-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57921  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:59:30  

Additional Information
 Earth MOID = .880358 AU 
 T_jup = 3.500 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6 mag n/a MPO263704  

42929 Francini           Discovered 1999 Oct. 8 by L. Tesi and G. Forti at San Marcello Pistoiese.
Claudio Francini (b. 1926) is an amateur astronomer passionately fond of imaging the sky and a collaborator at the San Marcello Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

[ show close-approach data ]
Alternate Designations
 1999 TW9 = 1528 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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