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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1551358240092634 4.6138e-08  
a 2.539562296746248 1.1676e-08 au
q 2.145585207217661 1.147e-07 au
i 5.915318418367819 4.9471e-06 deg
node 10.57985603233209 3.6907e-05 deg
peri 224.1897918604213 4.0718e-05 deg
M 92.64340975073735 2.058e-05 deg
tp 2458220.092769429756
(2018-Apr-11.59276943)
8.4499e-05 TDB
period 1478.212032283256
4.05
1.0194e-05
2.791e-08
d
yr
n .2435374575080015 1.6795e-09 deg/d
Q 2.933539386274834 1.3487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2042  
   data-arc span      23833 days (65.25 yr)  
   first obs. used      1954-09-04  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41262  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:01:03  

Additional Information
 Earth MOID = 1.1394 au 
 Jupiter MOID = 2.08142 au 
 T_jup = 3.422 
[ 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 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-January); 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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