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2879 Shimizu (1932 CB1)
Classification: Main-belt Asteroid          SPK-ID: 2002879
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1413687436507579 3.9206e-08  
a 2.769013557626395 1.0424e-08 au
q 2.377561589832836 1.0556e-07 au
i 10.71715316187407 3.4679e-06 deg
node 149.2411471694305 2.1413e-05 deg
peri 25.2689521535813 2.463e-05 deg
M 47.83085824436827 1.2349e-05 deg
tp 2458776.889741874614
(2019-Oct-20.38974187)
5.7461e-05 TDB
period 1683.00749515857
4.61
9.5036e-06
2.602e-08
d
yr
n .2139027907098425 1.2079e-09 deg/d
Q 3.160465525419954 1.1898e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2798  
   data-arc span      32387 days (88.67 yr)  
   first obs. used      1932-02-14  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42882  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:12  

Additional Information
 Earth MOID = 1.38822 au 
 Jupiter MOID = 1.8204 au 
 T_jup = 3.298 
[ 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 11.9   n/a MPO250229  
diameter diameter 21.762 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.72 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.115   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2879 Shimizu (1932 CB1)          Discovered 1932-Feb-14 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1932 CB1 = 1928 JA = 1975 RG1 = 1978 EV6 = 1980 TN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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