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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0619530473163296 3.8853e-08  
a 2.551377378555651 1.3187e-08 au
q 2.39331177510018 1.0469e-07 au
i 15.60400107097754 5.1257e-06 deg
node 211.6213956380927 1.2853e-05 deg
peri 260.6355451537842 4.5618e-05 deg
M 313.2999670709332 4.2374e-05 deg
tp 2459393.596838716958
(2021-Jun-28.09683872)
0.00017492 TDB
period 1488.539891260713
4.08
1.1541e-05
3.16e-08
d
yr
n .2418477342216871 1.8751e-09 deg/d
Q 2.709442982011122 1.4005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1282  
   data-arc span      8296 days (22.71 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47125  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:44  

Additional Information
 Earth MOID = 1.4634 au 
 Jupiter MOID = 2.41763 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 14.76   n/a E2021B10  
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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