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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06703567825572308 5.9799e-08  
a 2.919926972539138 2.4728e-08 AU
q 2.724187687477797 1.8122e-07 AU
i 2.468953926106685 5.9924e-06 deg
node 162.5622058814224 0.00012451 deg
peri 3.506558568421322 0.0001312 deg
M 330.8026711076822 4.1764e-05 deg
tp 2457148.307691079590
(2015-May-05.80769108)
0.00021175 JED
period 1822.453313619825
4.99
2.315e-05
6.338e-08
d
yr
n .197535924410022 2.5093e-09 deg/d
Q 3.11566625760048 2.6385e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      9958 days (27.26 yr)  
   first obs. used      1987-10-18  
   last obs. used      2015-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56639  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:37:03  

Additional Information
 Earth MOID = 1.73196 AU 
 T_jup = 3.275 
[ 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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