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JPL Small-Body Database Browser
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66612 (1999 RO199)
Classification: Main-belt Asteroid          SPK-ID: 2066612
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231542419239769 3.419e-08  
a 2.725743421129829 1.3096e-08 au
q 2.117482214308335 9.2707e-08 au
i 7.940091546489536 5.8128e-06 deg
node 228.5504722792604 3.7014e-05 deg
peri 213.7472645174147 4.0021e-05 deg
M 162.6812504313694 1.4681e-05 deg
tp 2458257.718827831170
(2018-May-19.21882783)
6.6086e-05 TDB
period 1643.712605304739
4.50
1.1846e-05
3.243e-08
d
yr
n .2190163893847228 1.5784e-09 deg/d
Q 3.334004627951324 1.6018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1311  
   data-arc span      7254 days (19.86 yr)  
   first obs. used      1999-07-23  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48776  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:00:06  

Additional Information
 Earth MOID = 1.13825 au 
 Jupiter MOID = 1.95984 au 
 T_jup = 3.306 
[ 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 14.0   n/a MPO436246  
diameter diameter 4.210 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.301   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66612 (1999 RO199)          Discovered 1999-Sep-08 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
1948-Oct-18 23:44 00:01 Jupiter 1.9612751092507 1.96127469088439 1.96127552761769 2.22643270352348 2.02317963066746 2432843.488781839 1.40837168678831 128.395215517391 29.0619113442984 89.076554224948 2986405.995233 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 15:00:26 2020-Feb-23 15:00
2043-Feb-03 20:09 < 00:01 Jupiter 1.99976433302602 1.99976387217677 1.99976479387525 2.52201463144672 2.34807058370134 2467284.339740436 0.652603506707747 120.935658604145 14.8876355201316 85.5560939838476 2374803.2795969 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 15:00:26 2020-Feb-23 15:00
2079-Jun-21 11:39 00:01 Jupiter 1.96393185446648 1.96393141497747 1.96393229395584 2.07974126654099 1.86084535086288 2480570.985629749 1.44709373721634 125.187281174901 36.2916464527288 85.8721230911286 2838406.62667333 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 15:00:26 2020-Feb-23 15:00
2173-Oct-04 18:32 00:03 Jupiter 1.98500440789492 1.98500354937746 1.98500526641689 2.38519214673752 2.19902712175981 2515009.272525553 3.39049952998555 228.973603972833 17.5649116140955 88.6783819848684 1542585.11832866 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 15:00:26 2020-Feb-23 15:00
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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