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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546222336628331 4.0064e-08  
a 2.54070794998331 1.0451e-08 au
q 2.147858011671973 1.0119e-07 au
i 5.913779414115449 4.2157e-06 deg
node 10.56755534569357 3.6105e-05 deg
peri 224.2518135210759 3.9786e-05 deg
M 238.6626282133914 2.0569e-05 deg
tp 2459699.065967155724
(2022-Apr-29.56596716)
8.4927e-05 TDB
period 1479.212426751025
4.05
9.127e-06
2.499e-08
d
yr
n .2433727526145193 1.5016e-09 deg/d
Q 2.933557888294647 1.2067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2469  
   data-arc span      24246 days (66.38 yr)  
   first obs. used      1954-09-04  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:25:32  

Additional Information
 Earth MOID = 1.14039 au 
 Jupiter MOID = 2.07979 au 
 T_jup = 3.421 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457153.5 (2015-May-11.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548067283272743 4.001e-08  
q 2.147139127950434 1.0105e-07 au
tp 2456742.452910370463
(2014-Mar-25.95291037)
8.4226e-05 TDB
node 10.59887391682412 3.607e-05 deg
peri 224.4531672904436 3.9759e-05 deg
i 5.917365504581209 4.2174e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2469  
   data-arc span      24246 days (66.38 yr)  
   first obs. used      1954-09-04  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:25:32  

Additional Information
 Jupiter MOID = 2.07979 au 
 T_jup = 3.421 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.600771365809486E-15 -4.02766600713021E-15 -5.378734111183949E-13 -2.400173160257872E-15 -1.071823203540059E-13 9.002722770086084E-16
q -4.02766600713021E-15 1.021131288915123E-14 1.312509368549239E-12 4.882147872169818E-15 2.661931344082994E-13 -1.972495693102377E-15
tp -5.378734111183949E-13 1.312509368549239E-12 7.093949870982359E-9 2.815507004677178E-11 1.42520161765862E-9 4.676758980298955E-12
node -2.400173160257872E-15 4.882147872169818E-15 2.815507004677178E-11 1.301020685207731E-9 -1.288053022646598E-9 3.171693374776448E-11
peri -1.071823203540059E-13 2.661931344082994E-13 1.42520161765862E-9 -1.288053022646598E-9 1.580807438407654E-9 -3.054574612436023E-11
i 9.002722770086084E-16 -1.972495693102377E-15 4.676758980298955E-12 3.171693374776448E-11 -3.054574612436023E-11 1.77861487717067E-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 12.95   n/a E2021B10  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2094-Jul-06 04:25 < 00:01 Amphi 0.04918622057289 0.0491803376981459 0.0491921058604611 4.26769710062058 4.26769707323411 2486064.683980951 0.865129897687286 623.788188236325 48.2627248441371 -62.2749937410454 135005.778643378 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:25:38 2021-Feb-24 01:25

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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