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JPL Small-Body Database Browser
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15379 Alefranz (1997 QG1)
Classification: Main-belt Asteroid          SPK-ID: 2015379
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040336289851166 3.8469e-08  
a 2.460682008527785 9.4628e-09 au
q 2.204688329402254 9.5009e-08 au
i 5.410655870860105 3.9119e-06 deg
node 222.9728822061802 4.1908e-05 deg
peri 341.360113698788 4.574e-05 deg
M 352.1876644128802 1.8701e-05 deg
tp 2458631.095676304065
(2019-May-27.59567630)
7.3234e-05 TDB
period 1409.878434769594
3.86
8.1327e-06
2.227e-08
d
yr
n .2553411635513327 1.4729e-09 deg/d
Q 2.716675687653316 1.0447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1576  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1993-06-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52445  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:19:46  

Additional Information
 Earth MOID = 1.20144 au 
 Jupiter MOID = 2.25157 au 
 T_jup = 3.476 
[ 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 14.3   n/a MPO473974  

15379 Alefranz           Discovered 1997 Aug. 29 by P. Sicoli and P. Chiavenna at Sormano.
Alessandro Bisentini and Francesco Villa met in Milan at the Center School of Theatre in 1995. In a short time they became a popular Italian comedian duo, and their success was consolidated by a book in 2001 and a movie in 2005. The name was suggested by the second discoverer, a long-time friend of both comedians.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2006-04-17

[ show close-approach data ]
Alternate Designations
 1997 QG1 = 1996 FD17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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