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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115668054213616 5.7053e-08  
a 2.393190695664047 1.1342e-08 au
q 1.886870985418278 1.3564e-07 au
i 1.887879840639473 6.1635e-06 deg
node 330.0791548536293 0.00018056 deg
peri 24.56534181630879 0.00018097 deg
M 163.111465141413 1.577e-05 deg
tp 2456787.802125920526
(2014-May-10.30212592)
5.7239e-05 JED
period 1352.27302677578
3.70
9.6128e-06
2.632e-08
d
yr
n .2662184284325679 1.8924e-09 deg/d
Q 2.899510405909814 1.3741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      23095 days (63.23 yr)  
   first obs. used      1951-11-28  
   last obs. used      2015-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56441  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 18:00:05  

Additional Information
 Earth MOID = .880287 au 
 Jupiter MOID = 2.53303 au 
 T_jup = 3.499 
[ 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  
rotation period rot_per 3.5297 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

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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