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JPL Small-Body Database Browser
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5050 Doctorwatson (1983 RD2)
Classification: Main-belt Asteroid          SPK-ID: 2005050
[ 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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119118354880243 4.4379e-08  
a 2.400579944398212 8.8733e-09 au
q 2.114626810662991 1.0634e-07 au
i .8658732673400839 3.9028e-06 deg
node 263.8904131350863 0.00030238 deg
peri 138.8324521532241 0.00030288 deg
M 171.092792318751 1.8007e-05 deg
tp 2457954.842945425672
(2017-Jul-20.34294543)		 6.6808e-05 TDB
period 1358.540804066846
3.72		 7.5324e-06
2.062e-08		 d
yr
n .2649902004579661 1.4692e-09 deg/d
Q 2.686533078133432 9.9302e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1937  
   data-arc span      23987 days (65.67 yr)  
   first obs. used      1953-09-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48666  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:51:48  

Additional Information
 Earth MOID = 1.12273 au 
 Jupiter MOID = 2.67222 au 
 T_jup = 3.516 
[ 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 13.6   n/a MPO272661  

5050 Doctorwatson (1983 RD2)          Discovered 1983-Sep-14 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1983 RD2 = 1972 TA7 = 1985 DB3 = 1987 UQ9 = 1987 WL1 = 1990 HR2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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