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66623 (1999 RL204)
Classification: Main-belt Asteroid          SPK-ID: 2066623
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .108353813111227 5.2404e-08  
a 2.638267157517979 2.0178e-08 au
q 2.352400850994788 1.3748e-07 au
i 11.84302335882629 6.2556e-06 deg
node 316.8151023845699 2.6513e-05 deg
peri 239.5615411021127 3.731e-05 deg
M 106.0062087299305 2.6654e-05 deg
tp 2458539.601403870375
(2019-Feb-25.10140387)
0.00011544 TDB
period 1565.224307091149
4.29
1.7957e-05
4.916e-08
d
yr
n .2299989837680408 2.6386e-09 deg/d
Q 2.92413346404117 2.2364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1997-01-12  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:28:34  

Additional Information
 Earth MOID = 1.37811 au 
 Jupiter MOID = 2.14186 au 
 T_jup = 3.358 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456316.5 (2013-Jan-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1088035035944709 5.2497e-08  
q 2.350483122194604 1.3764e-07 au
tp 2456971.807654814605
(2014-Nov-10.30765481)
0.0001146 TDB
node 316.9546529484113 2.6596e-05 deg
peri 239.027189727587 3.7227e-05 deg
i 11.82419269653633 6.2466e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1997-01-12  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54663  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:28:34  

Additional Information
 Jupiter MOID = 2.14186 au 
 T_jup = 3.358 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.755960988846258E-15 -7.16802622802227E-15 -8.777786470288336E-13 -2.299822798618949E-14 -1.768550581830155E-13 -1.16509845699691E-15
q -7.16802622802227E-15 1.894605553063998E-14 2.170897502834774E-12 6.285806846006257E-14 4.036257168959395E-13 3.600556699584692E-15
tp -8.777786470288336E-13 2.170897502834774E-12 1.313390460492764E-8 1.87205024545434E-11 3.00686646229387E-9 -1.488536896395235E-12
node -2.299822798618949E-14 6.285806846006257E-14 1.87205024545434E-11 7.073458395155018E-10 -6.881382855636541E-10 2.369066103359374E-11
peri -1.768550581830155E-13 4.036257168959395E-13 3.00686646229387E-9 -6.881382855636541E-10 1.385840799055262E-9 -2.378739601023153E-11
i -1.16509845699691E-15 3.600556699584692E-15 -1.488536896395235E-12 2.369066103359374E-11 -2.378739601023153E-11 3.901973223156588E-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 14.7   n/a MPO280166  
diameter diameter 2.838 km 0.463 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.551   0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66623 (1999 RL204)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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