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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07477537243646708 5.1822e-08  
a 2.258546623383785 1.1675e-08 au
q 2.089662958455137 1.1458e-07 au
i 5.469090951682443 6.019e-06 deg
node 153.3439673084353 4.6817e-05 deg
peri 328.9100518589649 5.9124e-05 deg
M 334.2832609121959 3.6758e-05 deg
tp 2457489.063631261964
(2016-Apr-10.56363126)
0.0001268 JED
period 1239.772552245057
3.39
9.613e-06
2.632e-08
d
yr
n .2903758430109537 2.2515e-09 deg/d
Q 2.427430288312432 1.2548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      7249 days (19.85 yr)  
   first obs. used      1996-02-15  
   last obs. used      2015-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59563  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:15:35  

Additional Information
 Earth MOID = 1.10711 au 
 Jupiter MOID = 2.60857 au 
 T_jup = 3.612 
[ 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 16.1 mag n/a MPO302247  

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

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Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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