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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548263967009468 4.4481e-08  
a 2.540289357314016 1.1238e-08 au
q 2.146985509543323 1.1096e-07 au
i 5.914101281541011 4.7497e-06 deg
node 10.57546170696756 3.6304e-05 deg
peri 224.2512069422957 4.0055e-05 deg
M 189.9850752234079 2.0537e-05 deg
tp 2459698.905670459632
(2022-Apr-29.40567046)
8.4843e-05 TDB
period 1478.846881800839
4.05
9.8135e-06
2.687e-08
d
yr
n .24343291008033 1.6154e-09 deg/d
Q 2.933593205084709 1.2978e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2283  
   data-arc span      24164 days (66.16 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:42:32  

Additional Information
 Earth MOID = 1.14081 au 
 Jupiter MOID = 2.08093 au 
 T_jup = 3.422 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456980.5 (2014-Nov-19.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547232362544126 4.44e-08  
q 2.147439272774471 1.1073e-07 au
tp 2456742.473623756679
(2014-Mar-25.97362376)
8.4854e-05 TDB
node 10.60179641771776 3.6273e-05 deg
peri 224.469824847625 4.005e-05 deg
i 5.917001641809432 4.7509e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2283  
   data-arc span      24164 days (66.16 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:42:32  

Additional Information
 Jupiter MOID = 2.08093 au 
 T_jup = 3.422 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.971378343170296E-15 -4.899370473786977E-15 -7.283747046002413E-13 -5.097335157007777E-15 -1.601518242563328E-13 1.051749513148744E-15
q -4.899370473786977E-15 1.226142961905477E-14 1.758861612003649E-12 1.139946689302749E-14 3.903500013746476E-13 -2.253383810204305E-15
tp -7.283747046002413E-13 1.758861612003649E-12 7.200132771762397E-9 2.781066376559109E-11 1.455813207479208E-9 3.648739764047371E-12
node -5.097335157007777E-15 1.139946689302749E-14 2.781066376559109E-11 1.31569797461878E-9 -1.302617904935312E-9 3.967807966812518E-11
peri -1.601518242563328E-13 3.903500013746476E-13 1.455813207479208E-9 -1.302617904935312E-9 1.603962617924642E-9 -3.869208595011994E-11
i 1.051749513148744E-15 -2.253383810204305E-15 3.648739764047371E-12 3.967807966812518E-11 -3.869208595011994E-11 2.257059275950229E-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. 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:
[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

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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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