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66066 (1998 RO18)
Classification: Main-belt Asteroid          SPK-ID: 2066066
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1659534580006122 4.1933e-08  
a 3.00812607236951 1.6892e-08 au
q 2.50891714855799 1.282e-07 au
i 13.7196587150119 4.9432e-06 deg
node 166.7392299543361 1.375e-05 deg
peri 212.4709538377176 1.7853e-05 deg
M 32.44096148040581 1.0028e-05 deg
tp 2458828.774933134062
(2019-Dec-11.27493313)
5.3146e-05 TDB
period 1905.647097083649
5.22
1.6052e-05
4.395e-08
d
yr
n .1889122075912871 1.5913e-09 deg/d
Q 3.50733499618103 1.9696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      8630 days (23.63 yr)  
   first obs. used      1996-04-13  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56102  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:58:04  

Additional Information
 Earth MOID = 1.52056 au 
 Jupiter MOID = 1.98664 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457363.5 (2015-Dec-07.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1659546345173331 4.2585e-08  
q 2.508465152559012 1.3018e-07 au
tp 2456910.191721005830
(2014-Sep-09.69172101)
5.5614e-05 TDB
node 166.9525636431273 1.3667e-05 deg
peri 210.3760685452887 1.7796e-05 deg
i 13.76081533539735 4.9569e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      8630 days (23.63 yr)  
   first obs. used      1996-04-13  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56102  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:58:04  

Additional Information
 Jupiter MOID = 1.98664 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.813503793893804E-15 -5.512969538572052E-15 -6.832773429051728E-13 1.109155359632524E-14 -1.620738121871921E-13 1.475641301776367E-15
q -5.512969538572052E-15 1.694782870249386E-14 1.843421831151542E-12 -3.437082297541334E-14 4.580302780772447E-13 -3.720849027775927E-15
tp -6.832773429051728E-13 1.843421831151542E-12 3.092877588165213E-9 -1.145122542582483E-11 6.410132452714604E-10 3.387833117623908E-13
node 1.109155359632524E-14 -3.437082297541334E-14 -1.145122542582483E-11 1.867919108980546E-10 -1.834271900223132E-10 1.18412582548006E-11
peri -1.620738121871921E-13 4.580302780772447E-13 6.410132452714604E-10 -1.834271900223132E-10 3.166861041920982E-10 -1.151099226326107E-11
i 1.475641301776367E-15 -3.720849027775927E-15 3.387833117623908E-13 1.18412582548006E-11 -1.151099226326107E-11 2.457127439872388E-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 14.8   n/a MPO453056  
diameter diameter 3.933 km 1.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.137   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66066 (1998 RO18)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RO18 = 1997 LA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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