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8742 Bonazzoli (1998 CB2)
Classification: Main-belt Asteroid          SPK-ID: 2008742
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07650924587804792 3.8341e-08  
a 2.191959153967162 6.4432e-09 au
q 2.02425401210165 8.619e-08 au
i 2.850824948907083 3.3731e-06 deg
node 110.1625255267977 8.8672e-05 deg
peri 334.2034123354184 9.2573e-05 deg
M 4.490830000567557 2.7028e-05 deg
tp 2458985.713301187576
(2020-May-16.21330119)
8.8978e-05 TDB
period 1185.351387560866
3.25
5.2265e-06
1.431e-08
d
yr
n .3037074101214688 1.3391e-09 deg/d
Q 2.359664295832673 6.9362e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1862  
   data-arc span      14356 days (39.30 yr)  
   first obs. used      1980-10-15  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:02:19  

Additional Information
 Earth MOID = 1.04084 au 
 Jupiter MOID = 2.76398 au 
 T_jup = 3.667 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456854.5 (2014-Jul-16.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07628189336875876 3.8337e-08  
q 2.024638591695865 8.6222e-08 au
tp 2456613.658040076752
(2013-Nov-17.15804008)
8.7216e-05 TDB
node 110.1958608228226 8.8724e-05 deg
peri 333.7746678493286 9.2648e-05 deg
i 2.850087771751688 3.3718e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1862  
   data-arc span      14356 days (39.30 yr)  
   first obs. used      1980-10-15  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47014  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:02:19  

Additional Information
 Jupiter MOID = 2.76398 au 
 T_jup = 3.667 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.469690677111551E-15 -3.298407484428148E-15 -1.31573159844667E-12 4.385126145313624E-15 -3.810528044302539E-13 -1.054585284087428E-15
q -3.298407484428148E-15 7.434274095381712E-15 2.9589897870419E-12 -9.982259292518627E-15 8.579522420597342E-13 2.429483106285242E-15
tp -1.31573159844667E-12 2.9589897870419E-12 7.606681311684569E-9 -1.862834804517324E-11 2.347411511504825E-9 2.605723063248616E-12
node 4.385126145313624E-15 -9.982259292518627E-15 -1.862834804517324E-11 7.871911191114638E-9 -7.867406354749603E-9 -8.49087972830627E-11
peri -3.810528044302539E-13 8.579522420597342E-13 2.347411511504825E-9 -7.867406354749603E-9 8.583619771174687E-9 8.557926770138806E-11
i -1.054585284087428E-15 2.429483106285242E-15 2.605723063248616E-12 -8.49087972830627E-11 8.557926770138806E-11 1.136921138927111E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO502235  

8742 Bonazzoli           Discovered 1998 Feb. 14 by V. S. Casulli at the Colleverde di Guidonia.
Roberto Bonazzoli (1940-1996) was a friend of the discoverer. Fond of astronomy, he offered technical support, notably concerning electronics, at the Colleverde Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1998 CB2 = 1980 TD10 = 1987 YK1 = 1990 UG13 = 1990 VP9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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