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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05564824913908741 5.0216e-08  
a 3.142905376084356 2.9744e-08 au
q 2.968008194695436 1.604e-07 au
i 11.59121254346296 5.5328e-06 deg
node 254.2713591290195 2.8592e-05 deg
peri 154.0781190232474 6.0808e-05 deg
M 139.6618622462527 5.5134e-05 deg
tp 2457810.966224430135
(2017-Feb-26.46622443)
0.00030746 TDB
period 2035.145132921052
5.57
2.889e-05
7.91e-08
d
yr
n .1768915612830474 2.5111e-09 deg/d
Q 3.317802557473276 3.1399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      12958 days (35.48 yr)  
   first obs. used      1983-11-08  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:43:11  

Additional Information
 Earth MOID = 1.98345 au 
 Jupiter MOID = 1.99221 au 
 T_jup = 3.176 
[ 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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