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13225 Manfredi (1997 QU1)
Classification: Main-belt Asteroid          SPK-ID: 2013225
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06595902044847132 5.951e-08  
a 2.916933979136751 2.1581e-08 au
q 2.724535871160029 1.7835e-07 au
i 2.471202533632815 5.9283e-06 deg
node 162.5584373037875 0.00010651 deg
peri 3.049092221525769 0.00011306 deg
M 89.8738962137319 3.6309e-05 deg
tp 2457146.224416297509
(2015-May-03.72441630)
0.00018392 JED
period 1819.651945921864
4.98
2.0194e-05
5.529e-08
d
yr
n .1978400324341248 2.1955e-09 deg/d
Q 3.109332087113473 2.3004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      10378 days (28.41 yr)  
   first obs. used      1987-10-18  
   last obs. used      2016-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55765  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:15:57  

Additional Information
 Earth MOID = 1.73065 au 
 Jupiter MOID = 1.8616 au 
 T_jup = 3.277 
[ 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 13.8 mag n/a MPO313525  

13225 Manfredi           Discovered 1997 Aug. 29 at Osservatorio San Vittore.
The brothers Eustachio (1674-1739), Gabriele (1681-1761) and Eraclito (1682-1759) Manfredi were professors at the University of Bologna, of astronomy, mathematics and medicine-cum-geometry. Eustachio was the author of the famous Istituzioni astronomiche, published as the second volume of his works.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1997 QU1 = 1995 EN2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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