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66611 (1999 RZ198)
Classification: Main-belt Asteroid          SPK-ID: 2066611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06184705048928648 4.1434e-08  
a 2.550962049762973 1.654e-08 au
q 2.393192571075029 1.0836e-07 au
i 15.60520685354834 5.4864e-06 deg
node 211.6215568297961 1.6851e-05 deg
peri 260.7573717988922 4.9182e-05 deg
M 264.7944412880576 4.4964e-05 deg
tp 2459394.062969489318
(2021-Jun-28.56296949)
0.00018547 TDB
period 1488.176435630561
4.07
1.4473e-05
3.962e-08
d
yr
n .2419068004174269 2.3527e-09 deg/d
Q 2.708731528450917 1.7563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      7774 days (21.28 yr)  
   first obs. used      1998-05-23  
   last obs. used      2019-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50989  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:00:06  

Additional Information
 Earth MOID = 1.4637 au 
 Jupiter MOID = 2.4188 au 
 T_jup = 3.386 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO344786  
diameter diameter 4.767 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66611 (1999 RZ198)          Discovered 1999-Sep-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RZ198 = 1999 SU24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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