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5557 Chimikeppuko (1989 CM1)
Classification: Main-belt Asteroid          SPK-ID: 2005557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548263965999007 4.3821e-08  
a 2.540289357264709 1.1113e-08 au
q 2.146985509758336 1.0949e-07 au
i 5.914101170629393 4.6777e-06 deg
node 10.5754615952562 3.6296e-05 deg
peri 224.25120707205 4.0031e-05 deg
M 189.9850752182682 2.0531e-05 deg
tp 2459698.905670460411
(2022-Apr-29.40567046)
8.4832e-05 TDB
period 1478.846881757782
4.05
9.7046e-06
2.657e-08
d
yr
n .2434329100874176 1.5975e-09 deg/d
Q 2.933593204771082 1.2834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2300  
   data-arc span      24176 days (66.19 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:22:55  

Additional Information
 Earth MOID = 1.14081 au 
 Jupiter MOID = 2.08093 au 
 T_jup = 3.422 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457009.5 (2014-Dec-18.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547336248283744 4.3742e-08  
q 2.147420619177162 1.0928e-07 au
tp 2456742.474254863636
(2014-Mar-25.97425486)
8.4738e-05 TDB
node 10.60121980170214 3.6264e-05 deg
peri 224.4697221150479 4.0023e-05 deg
i 5.917040017848489 4.6788e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2300  
   data-arc span      24176 days (66.19 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:22:55  

Additional Information
 Jupiter MOID = 2.08093 au 
 T_jup = 3.422 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.913381297166799E-15 -4.763109380406287E-15 -6.951144902533605E-13 -4.752616629295143E-15 -1.51048680316163E-13 9.741481800871812E-16
q -4.763109380406287E-15 1.194134236261158E-14 1.681113144000247E-12 1.056973789170092E-14 3.690477970751264E-13 -2.081720084789371E-15
tp -6.951144902533605E-13 1.681113144000247E-12 7.1804824865171E-9 2.762645941234846E-11 1.450460639181009E-9 3.714568094839224E-12
node -4.752616629295143E-15 1.056973789170092E-14 2.762645941234846E-11 1.31506504742045E-9 -1.302041779472339E-9 3.904319624041804E-11
peri -1.51048680316163E-13 3.690477970751264E-13 1.450460639181009E-9 -1.302041779472339E-9 1.601877831475553E-9 -3.804315434555782E-11
i 9.741481800871812E-16 -2.081720084789371E-15 3.714568094839224E-12 3.904319624041804E-11 -3.804315434555782E-11 2.189158562385627E-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 12.9   n/a MPO448969  
diameter diameter 7.100 km 0.657 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.168 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.291   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5557 Chimikeppuko (1989 CM1)          Discovered 1989-Feb-07 by Endate and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 CM1 = 1969 EY = 1973 FS = 1983 VW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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