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18558 (1997 CO19)
Classification: Main-belt Asteroid          SPK-ID: 2018558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09237991040997304 4.2285e-08  
a 3.151135124610901 1.7224e-08 au
q 2.860033544109626 1.3296e-07 au
i 6.317186584836625 4.3547e-06 deg
node 62.95868283235598 3.9938e-05 deg
peri 155.8984466490658 4.6251e-05 deg
M 65.86632878934584 2.2157e-05 deg
tp 2459022.682245984428
(2020-Jun-22.18224598)
0.00012661 TDB
period 2043.143954113533
5.59
1.6751e-05
4.586e-08
d
yr
n .1761990383865021 1.4446e-09 deg/d
Q 3.442236705112175 1.8815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1316  
   data-arc span      17786 days (48.70 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5419  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:01:31  

Additional Information
 Earth MOID = 1.85388 au 
 Jupiter MOID = 1.53252 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457273.5 (2015-Sep-08.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09175826501435315 4.2237e-08  
q 2.86037945088245 1.3318e-07 au
tp 2456973.361467991551
(2014-Nov-11.86146799)
0.00013261 TDB
node 63.00063217835386 3.9912e-05 deg
peri 154.4822313024014 4.6307e-05 deg
i 6.320006310957717 4.3565e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1316  
   data-arc span      17786 days (48.70 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5419  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:01:31  

Additional Information
 Jupiter MOID = 1.53252 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.783963723155649E-15 -5.585186686439036E-15 -7.804642254282602E-13 -8.759962551760641E-15 -9.42964022497125E-14 -1.955249172899284E-16
q -5.585186686439036E-15 1.773761598876885E-14 1.668037910333446E-12 1.784758411513036E-14 1.696315316008487E-13 6.679143919013298E-16
tp -7.804642254282602E-13 1.668037910333446E-12 1.758424370084681E-8 1.407082990614689E-11 3.13334569279102E-9 2.935697453355063E-13
node -8.759962551760641E-15 1.784758411513036E-14 1.407082990614689E-11 1.592987798196123E-9 -1.582014751830648E-9 -3.823716326976384E-11
peri -9.42964022497125E-14 1.696315316008487E-13 3.13334569279102E-9 -1.582014751830648E-9 2.144346403855693E-9 3.80683846915971E-11
i -1.955249172899284E-16 6.679143919013298E-16 2.935697453355063E-13 -3.823716326976384E-11 3.80683846915971E-11 1.897886600401851E-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 13.91   n/a E2021B10  
diameter diameter 8.424 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18558 (1997 CO19)          Discovered 1997-Feb-06 by Urata, T. at Oohira
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 CO19 = 1972 TM10 = 1998 KR35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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