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4599 Rowan (1985 RZ2)
Classification: Main-belt Asteroid          SPK-ID: 2004599
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172004773757557 3.7804e-08  
a 3.069199185508845 1.4948e-08 au
q 2.541282273988518 1.1594e-07 au
i 3.45224035334679 4.0771e-06 deg
node 109.6801967436382 6.9049e-05 deg
peri 260.6594681646473 6.9949e-05 deg
M 136.8881426435703 1.2012e-05 deg
tp 2458253.708496208421
(2018-May-15.20849621)
6.4169e-05 TDB
period 1963.975375610052
5.38
1.4348e-05
3.928e-08
d
yr
n .183301687216 1.3391e-09 deg/d
Q 3.597116097029172 1.7519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      25523 days (69.88 yr)  
   first obs. used      1950-03-21  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51672  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:17:09  

Additional Information
 Earth MOID = 1.54385 au 
 Jupiter MOID = 1.87244 au 
 T_jup = 3.206 
[ 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 MPO502197  
diameter diameter 13.001 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4599 Rowan           Discovered 1985 Sept. 5 by H. Debehogne at the European Southern Observatory.
Michael Rowan-Robinson (b. 1942), of Imperial College, London, led the team evaluating the completeness and reliability of the IRAS deep-sky infrared survey. His work has been mainly extragalactic, but he used the survey to set a strict limit on the existence of undiscovered Jupiter-like planets beyond the orbit of Neptune.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

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Alternate Designations
 1985 RZ2 = 1975 VV1 = 1977 DB2 = 1980 TV10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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