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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231542429608379 3.3774e-08  
a 2.725743421437821 1.2873e-08 au
q 2.11748221172138 9.1841e-08 au
i 7.940094447640014 5.3781e-06 deg
node 228.5504482738173 3.2499e-05 deg
peri 213.74728700 3.5037e-05 deg
M 162.6812514267673 1.3423e-05 deg
tp 2458257.718823160419
(2018-May-19.21882316)
5.9801e-05 TDB
period 1643.712605583333
4.50
1.1644e-05
3.188e-08
d
yr
n .2190163893476016 1.5516e-09 deg/d
Q 3.334004631154262 1.5746e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1374  
   data-arc span      7635 days (20.90 yr)  
   first obs. used      1999-07-23  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:14:40  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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