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59804 Dickjoyce (1999 RJ1)
Classification: Main-belt Asteroid          SPK-ID: 2059804
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05903770904805206 3.3241e-08  
a 3.193409726498524 1.9832e-08 au
q 3.004878132194285 1.0548e-07 au
i 9.36343369630119 4.7004e-06 deg
node 44.92295964649893 2.2706e-05 deg
peri 48.13696226322644 4.9306e-05 deg
M 121.7632747527045 4.2851e-05 deg
tp 2458295.491730110387
(2018-Jun-25.99173011)
0.00024737 TDB
period 2084.39677460813
5.71
1.9417e-05
5.316e-08
d
yr
n .1727118389288817 1.6089e-09 deg/d
Q 3.381941320802764 2.1003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1667  
   data-arc span      7591 days (20.78 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:41:24  

Additional Information
 Earth MOID = 2.03076 au 
 Jupiter MOID = 1.80308 au 
 T_jup = 3.173 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO302387  
diameter diameter 14.294 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59804 Dickjoyce           Discovered 1999 Sept. 5 by C. W. Juels at Fountain Hills.
Richard R. Joyce (b. 1944) is an astronomer at the National Optical Astronomy Observatory who studies late-type stars and mass loss using infrared spectroscopy. He is also an expert in infrared instrumentation development.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

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Alternate Designations
 1999 RJ1 = 2000 UF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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