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20603 (1999 RT199)
Classification: Main-belt Asteroid          SPK-ID: 2020603
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05363999271176598 4.7176e-08  
a 3.149352211650376 2.8425e-08 au
q 2.980420981970666 1.5306e-07 au
i 11.57556599679896 5.2791e-06 deg
node 254.2514271568602 2.4233e-05 deg
peri 153.1065871356323 5.7348e-05 deg
M 246.6649645907888 5.5132e-05 deg
tp 2459843.175820313665
(2022-Sep-20.67582031)
0.00031765 TDB
period 2041.410182451978
5.59
2.7638e-05
7.567e-08
d
yr
n .176348684401876 2.3875e-09 deg/d
Q 3.318283441330086 2.995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      13425 days (36.76 yr)  
   first obs. used      1983-11-08  
   last obs. used      2020-08-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:24:50  

Additional Information
 Earth MOID = 1.99562 au 
 Jupiter MOID = 1.99211 au 
 T_jup = 3.174 
[ 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 13.89   n/a E2021B10  
diameter diameter 7.549 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.113   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20603 (1999 RT199)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RT199 = 1983 VN3 = 2000 QF218 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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