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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716971318073343 3.9131e-08  
a 3.070032568972912 1.5508e-08 au
q 2.542916782325161 1.21e-07 au
i 3.45199938687089 4.1536e-06 deg
node 109.6792693449882 7.4363e-05 deg
peri 260.7368263075809 7.5274e-05 deg
M 63.53028247127229 1.2054e-05 deg
tp 2458253.770186010427
(2018-May-15.27018601)
6.5332e-05 TDB
period 1964.775350915367
5.38
1.4887e-05
4.076e-08
d
yr
n .1832270543460758 1.3883e-09 deg/d
Q 3.597148355620664 1.817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1803  
   data-arc span      25463 days (69.71 yr)  
   first obs. used      1950-03-21  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52986  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:47:20  

Additional Information
 Earth MOID = 1.54468 au 
 Jupiter MOID = 1.86906 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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