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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06703567677250717 5.9553e-08  
a 2.919926962306247 2.2055e-08 AU
q 2.724187682261757 1.795e-07 AU
i 2.46895354845249 5.9459e-06 deg
node 162.5621644449646 0.00010775 deg
peri 3.506588458813613 0.00011411 deg
M 330.8026860773027 3.6204e-05 deg
tp 2457148.307614520840
(2015-May-05.80761452)
0.00018316 JED
period 1822.453304039638
4.99
2.0648e-05
5.653e-08
d
yr
n .1975359254484197 2.2381e-09 deg/d
Q 3.115666242350737 2.3534e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1169  
   data-arc span      10094 days (27.64 yr)  
   first obs. used      1987-10-18  
   last obs. used      2015-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55581  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:11:33  

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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