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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1659535122784622 4.1739e-08  
a 3.008126060434575 1.6811e-08 au
q 2.508916975329084 1.2752e-07 au
i 13.71965812715711 4.9016e-06 deg
node 166.7392205877332 1.3709e-05 deg
peri 212.4709862100889 1.7816e-05 deg
M 32.44094661102571 9.9842e-06 deg
tp 2458828.775012866587
(2019-Dec-11.27501287)
5.2925e-05 TDB
period 1905.647085742482
5.22
1.5975e-05
4.374e-08
d
yr
n .1889122087155692 1.5836e-09 deg/d
Q 3.507335145540067 1.9601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      8965 days (24.54 yr)  
   first obs. used      1996-04-13  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:19:37  

Additional Information
 Earth MOID = 1.52056 au 
 Jupiter MOID = 1.98664 au 
 T_jup = 3.187 
[ 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 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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