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6923 Borzacchini (1993 SD)
Classification: Main-belt Asteroid          SPK-ID: 2006923
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07398527296015583 5.3109e-08  
a 2.993693820746483 1.6301e-08 au
q 2.772204566259423 1.5698e-07 au
i 10.53827718563408 6.3927e-06 deg
node 195.0732409315557 1.9021e-05 deg
peri 151.0411815383749 3.6289e-05 deg
M 67.0941928067122 3.0763e-05 deg
tp 2458647.892187976862
(2019-Jun-13.39218798)
0.00016189 TDB
period 1891.949318088085
5.18
1.5453e-05
4.231e-08
d
yr
n .190279938557656 1.5541e-09 deg/d
Q 3.215183075233544 1.7507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1433  
   data-arc span      13238 days (36.24 yr)  
   first obs. used      1983-10-30  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52784  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:15:42  

Additional Information
 Earth MOID = 1.77162 au 
 Jupiter MOID = 2.13675 au 
 T_jup = 3.225 
[ show covariance matrix ]

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 13.8   n/a MPO350858  
diameter diameter 6.759 km 0.420 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.55174 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.140   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6923 Borzacchini (1993 SD)          Discovered 1993-Sep-16 by Vagnozzi, A. at Stroncone
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1993 SD = 1983 UB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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