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117539 Celletti (2005 DJ1)
Classification: Main-belt Asteroid          SPK-ID: 2117539
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1001206790479226 7.5087e-08  
a 3.126032214086629 6.4903e-08 AU
q 2.813051746086595 2.6012e-07 AU
i .5314341120161306 8.9134e-06 deg
node 280.7982215866599 0.0013101 deg
peri 154.3487167603087 0.0013123 deg
M 316.0507835993018 7.0515e-05 deg
tp 2457046.954774475281
(2015-Jan-24.45477448)
0.00039865 JED
period 2018.778173475959
5.53
6.2872e-05
1.721e-07
d
yr
n .1783256846789399 5.5537e-09 deg/d
Q 3.439012682086663 7.1402e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      1994-03-07  
   last obs. used      2013-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57475  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 00:10:06  

Additional Information
 Earth MOID = 1.82728 AU 
 T_jup = 3.207 
[ 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 15.4 mag n/a MPO268036  

117539 Celletti           Discovered 2005 Feb. 17 by A. Boattini and H. Scholl at the European Southern Observatory.
Alessandra Celletti (b. 1962) is an associate professor at the University of Roma "Tor Vergata", where she teaches celestial mechanics and the theory of dynamical systems. Since 2001 she has been president of the Italian society of Celestial Mechanics and Astrodynamics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

[ show close-approach data ]
Alternate Designations
 2005 DJ1 = 2003 YP53 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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