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79375 Valetti (1997 FA)
Classification: Main-belt Asteroid          SPK-ID: 2079375
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964135152885464 4.3088e-08  
a 2.309199267176715 8.1637e-09 au
q 1.855641321608801 9.9118e-08 au
i .9795447691090033 5.4169e-06 deg
node 176.1868112803868 0.00020293 deg
peri 38.40611026012549 0.00020325 deg
M 193.8450205989812 1.2926e-05 deg
tp 2459592.063545961565
4.7267e-05 TDB
period 1281.712274371103
n .2808742704571828 1.4895e-09 deg/d
Q 2.762757212744628 9.7671e-09 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      8289 days (22.69 yr)  
   first obs. used      1997-03-16  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:40:05  

Additional Information
 Earth MOID = .849229 au 
 Jupiter MOID = 2.20447 au 
 T_jup = 3.560 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436336  
rotation period rot_per 4.35 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

79375 Valetti           Discovered 1997 Mar. 16 by V. Goretti at Pianoro.
Alvero Valetti (1923-2005), an Italian mathematician and physicist, was a teacher at the Calini Senior High School in Brescia. Director of Specola Cidnea from 1970 to 1985, he was an expert in chronology and sundials, and he prepared the yearbook of the Brescia Observatory. The name was suggested by U. Quadri.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

Alternate Designations
 1997 FA = 1998 TC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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