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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457394.5 (2016-Jan-07.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .165929469521406 4.2389e-08  
q 2.508759328635477 1.2947e-07 au
tp 2456910.284614606339
(2014-Sep-09.78461461)
5.552e-05 TDB
node 166.9521368201395 1.3625e-05 deg
peri 210.4066945556846 1.7761e-05 deg
i 13.76092417763248 4.9152e-06 deg
  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
 Jupiter MOID = 1.98664 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.79681765390442E-15 -5.457318628188092E-15 -6.830807662758144E-13 1.13732276190142E-14 -1.624603494491313E-13 1.356379029215506E-15
q -5.457318628188092E-15 1.676207978849413E-14 1.839870430539182E-12 -3.526123490297302E-14 4.589249527494169E-13 -3.372721607417039E-15
tp -6.830807662758144E-13 1.839870430539182E-12 3.082483255146002E-9 -1.163966015888393E-11 6.395931563992882E-10 3.371089128422067E-13
node 1.13732276190142E-14 -3.526123490297302E-14 -1.163966015888393E-11 1.856513718859806E-10 -1.823629660103164E-10 1.201809018260637E-11
peri -1.624603494491313E-13 4.589249527494169E-13 6.395931563992882E-10 -1.823629660103164E-10 3.154501493352772E-10 -1.168177366661697E-11
i 1.356379029215506E-15 -3.372721607417039E-15 3.371089128422067E-13 1.201809018260637E-11 -1.168177366661697E-11 2.415926671336293E-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

[ 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
1933-Aug-21 18:44 00:02 Jupiter 1.96709837573114 1.96709796439942 1.96709878706286 3.8051875972703 3.69029305925818 2427306.280395999 1.88816339164746 188.474132763824 18.7656403644502 -89.7835495576695 3132193.06679518 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 22:19:40 2020-Nov-12 22:19
2017-Apr-17 15:54 < 00:01 Jupiter 1.99903397272748 1.99903357393436 1.9990343715206 3.5260138633613 3.40372471385009 2457861.162155098 0.215588811900829 52.2084070171336 17.6197322714511 88.8029847234402 3131894.24759424 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 22:19:40 2020-Nov-12 22:19
2063-Oct-01 13:55 00:01 Jupiter 1.99811548138689 1.99811498862397 1.99811597415039 3.92805639777516 3.81861305721128 2474829.079648742 1.15210985475778 114.652598922729 19.7004106253193 84.3015712036172 3315195.27954535 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 22:19:40 2020-Nov-12 22:19
2147-May-27 17:28 00:03 Jupiter 1.9801038177278 1.98010339311736 1.98010424233925 3.67879831474677 3.56062123794978 2505382.228016908 3.11444835468337 300.749301932538 18.8236952425891 -88.040221475024 2967434.2875425 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 22:19:40 2020-Nov-12 22:19

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