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34696 Risoldi (2001 OV12)
Classification: Main-belt Asteroid          SPK-ID: 2034696
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304678578521761 3.8711e-08  
a 2.5364730516276 1.034e-08 au
q 2.205544846081975 9.9173e-08 au
i 13.34627205539397 3.2585e-06 deg
node 290.8147357812024 2.0405e-05 deg
peri 208.4073665107696 2.7633e-05 deg
M 47.187076206034 1.7675e-05 deg
tp 2458807.096480266756
(2019-Nov-19.59648027)
7.2683e-05 TDB
period 1475.515600923471
4.04
9.0225e-06
2.47e-08
d
yr
n .243982510096599 1.4919e-09 deg/d
Q 2.867401257173225 1.1689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1840  
   data-arc span      12722 days (34.83 yr)  
   first obs. used      1985-08-17  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:25:14  

Additional Information
 Earth MOID = 1.22834 au 
 Jupiter MOID = 2.23291 au 
 T_jup = 3.398 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO459108  
diameter diameter 4.489 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34696 Risoldi           Discovered 2001 July 21 by A. Boattini and M. Tombelli at San Marcello Pistoiese.
Vairo Risoldi (b. 1951) is an amateur astronomer at the S. Lucia Stroncone Observatory. Thanks to his skills in electronics and computer science, he made the telescope control interface and various software packages for the astrometric reduction of CCD frames, extensively used by other Italian teams as well.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 2001 OV12 = 1985 QW2 = 2000 JA82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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