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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05464292393570919 4.9643e-08  
a 3.145909579921652 2.9102e-08 au
q 2.974007882037374 1.5883e-07 au
i 11.58767637810288 5.4343e-06 deg
node 254.2748563282363 2.7953e-05 deg
peri 153.7696424188912 6.0629e-05 deg
M 210.7130663654216 5.5948e-05 deg
tp 2459845.656386654291
(2022-Sep-23.15638665)
0.00032228 TDB
period 2038.06382640491
5.58
2.828e-05
7.743e-08
d
yr
n .1766382364162905 2.451e-09 deg/d
Q 3.317811277805929 3.0692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      13369 days (36.60 yr)  
   first obs. used      1983-11-08  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:43:42  

Additional Information
 Earth MOID = 1.98991 au 
 Jupiter MOID = 1.99169 au 
 T_jup = 3.175 
[ 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 13.9   n/a MPO344465  
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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