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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09237991808160789 3.8132e-08  
a 3.151135123111981 1.6853e-08 au
q 2.860033518574819 1.1823e-07 au
i 6.317184075055162 4.081e-06 deg
node 62.95869989000779 3.8487e-05 deg
peri 155.8984299018624 4.4963e-05 deg
M 65.86632938514398 2.2141e-05 deg
tp 2459022.682242869759
(2020-Jun-22.18224287)
0.00012655 TDB
period 2043.14395265572
5.59
1.6391e-05
4.488e-08
d
yr
n .1761990385122226 1.4136e-09 deg/d
Q 3.442236727649143 1.841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1421  
   data-arc span      17836 days (48.83 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:10:32  

Additional Information
 Earth MOID = 1.85388 au 
 Jupiter MOID = 1.53252 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457399.5 (2016-Jan-12.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09182773529723584 3.8149e-08  
q 2.860436516141676 1.1855e-07 au
tp 2456973.583559439487
(2014-Nov-12.08355944)
0.00013253 TDB
node 62.99756698694327 3.8465e-05 deg
peri 154.5289204550723 4.5009e-05 deg
i 6.319712881990635 4.0824e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1421  
   data-arc span      17836 days (48.83 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:10:32  

Additional Information
 Jupiter MOID = 1.53252 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.455353601660919E-15 -4.485198084131433E-15 -8.034093924246593E-13 -8.288320809751799E-15 -1.171109810740065E-13 -2.509029016820515E-16
q -4.485198084131433E-15 1.405507712712772E-14 1.745788445454941E-12 1.632590160104091E-14 2.461257124958837E-13 8.268349958396604E-16
tp -8.034093924246593E-13 1.745788445454941E-12 1.75636521434398E-8 2.542812983581468E-11 3.116729365286237E-9 -1.341709728916225E-12
node -8.288320809751799E-15 1.632590160104091E-14 2.542812983581468E-11 1.4795725092601E-9 -1.467169616782208E-9 -2.205625317586301E-11
peri -1.171109810740065E-13 2.461257124958837E-13 3.116729365286237E-9 -1.467169616782208E-9 2.025828545818564E-9 2.168076169676417E-11
i -2.509029016820515E-16 8.268349958396604E-16 -1.341709728916225E-12 -2.205625317586301E-11 2.168076169676417E-11 1.666606577582104E-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 13.93   n/a MPO636344  
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

[ 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
1917-Nov-19 09:06 00:02 Jupiter 1.6838465077407 1.68384538879207 1.68384762669124 2.51702245451501 2.30853749362468 2421551.879192861 2.26460814886048 124.512654355012 11.4659447973182 -73.1868275746019 2170352.16959778 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
1928-Apr-01 19:19 00:02 Jupiter 1.53698936925993 1.53698885811096 1.5369898804137 1.93709819768209 1.62793288318854 2425338.305169713 2.02738348684038 216.214051444176 37.3151594500354 -83.3041787820756 2041272.86313069 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
1938-Jul-29 05:23 00:02 Jupiter 1.86253678456368 1.8625358597897 1.86253770933798 2.82086864253371 2.65476241639408 2429108.724448920 1.76251034118243 79.4387508955864 20.4344711493067 -75.3687279711392 2517255.96271838 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2001-Nov-13 11:05 < 00:01 Jupiter 1.94099472831635 1.94099426957523 1.94099518705747 3.15528733680963 3.01381263598276 2452226.961548682 0.393091537150899 45.4750942706575 14.0509135239989 -74.6298946782424 3564492.15552361 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2012-Apr-01 07:22 < 00:01 Jupiter 1.55701222022101 1.55701184419189 1.55701259625057 2.18903987665144 1.92454812385486 2456018.806710768 0.240383565321067 96.3703316408434 16.9196136265375 -80.0616450781608 2343628.98754397 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2022-Aug-10 14:31 < 00:01 Jupiter 1.62916770457059 1.6291672094892 1.62916819965226 2.08336802214729 1.81675533481706 2459802.104654682 0.343315541379907 91.8592730490064 20.4899380642904 -89.1788350480391 2408700.20755454 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2096-Apr-02 09:23 00:02 Jupiter 1.76373351703304 1.76373237240129 1.76373466166599 2.6303180634108 2.44091889113249 2486700.891255057 1.89571926729652 105.768605879359 12.4753767883131 -68.8126525006524 2288135.21869637 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2106-Aug-18 01:52 00:02 Jupiter 1.52253440058485 1.52253398175908 1.52253481941235 2.05635010338675 1.76519903646297 2490489.577474731 2.16851943518522 153.379890374771 27.3294691198252 -81.605107962618 2120036.64913417 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2116-Dec-18 12:35 00:03 Jupiter 1.78706581979895 1.78706434871268 1.78706729088796 2.57712879999099 2.38613601920472 2494265.024065582 2.51628042577965 149.496790103988 18.2404034153529 -75.9954385598624 2648036.83299757 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2190-Aug-15 22:26 00:04 Jupiter 1.60897761889556 1.60897596702975 1.60897927076987 2.27389745267242 2.02922131740245 2521168.434895454 4.07675569473521 223.78234306874 11.4370168667662 -76.9872315352201 2033172.23327363 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10
2200-Dec-31 21:01 00:04 Jupiter 1.57279616408017 1.57279469812328 1.57279763008418 2.10158406280999 1.82744748220961 2524958.375660626 4.44071336095842 485.981131296394 24.2273875364408 -84.8021405132483 2215881.60725545 T 25 CATAB v2.0g-lin.ifort 2021-Aug-24 22:10:39 2021-Aug-24 22:10

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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