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31015 Boccardi (1996 DS1)
Classification: Main-belt Asteroid          SPK-ID: 2031015
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07471149970277458 5.8597e-08  
a 2.259064193719908 1.3695e-08 AU
q 2.090286119882255 1.2822e-07 AU
i 5.46854210537154 7.216e-06 deg
node 153.3446301890526 5.3798e-05 deg
peri 328.6684701294341 7.4046e-05 deg
M 160.3383876282229 4.9474e-05 deg
tp 2456248.134816895648
(2012-Nov-16.63481690)
0.0001695 JED
period 1240.19873755151
3.40
1.1277e-05
3.087e-08
d
yr
n .2902760574573217 2.6396e-09 deg/d
Q 2.427842267557561 1.4718e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      1996-02-15  
   last obs. used      2014-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63412  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:03:54  

Additional Information
 Earth MOID = 1.1077 AU 
 T_jup = 3.611 
[ 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 16.0 mag n/a MPO266109  

31015 Boccardi           Discovered 1996 Feb. 16 at the Osservatorio San Vittore.
Giovanni Boccardi (1859-1936) worked at the observatories of Collegio Romano (Rome) and Collurania (Teramo). Director of the Turin Observatory from 1900 until 1923, he founded the magazine Rivista di Astronomia e Scienze Affini and the society Urania for the popularization of astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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