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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725256927292605 1.5613e-08  
a 3.067838474729639 1.3795e-08 au
q 2.53855751669543 5.1379e-08 au
i 3.452227721259815 8.5972e-07 deg
node 109.6778020560452 2.4756e-05 deg
peri 260.6633011098847 2.5582e-05 deg
M 209.4905403429872 9.6515e-06 deg
tp 2460217.056438168126
(2023-Sep-29.55643817)
5.5519e-05 TDB
period 1962.669445586316
5.37
1.3238e-05
3.624e-08
d
yr
n .1834236533358045 1.2372e-09 deg/d
Q 3.597119432763848 1.6175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2383  
   data-arc span      26017 days (71.23 yr)  
   first obs. used      1950-03-21  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4962  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:17:19  

Additional Information
 Earth MOID = 1.54032 au 
 Jupiter MOID = 1.87426 au 
 T_jup = 3.206 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457275.5 (2015-Sep-10.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703589907875825 1.5577e-08  
q 2.547517292004906 5.1189e-08 au
tp 2458254.895824652274
(2018-May-16.39582465)
4.9881e-05 TDB
node 109.7068193182575 2.4747e-05 deg
peri 260.756989414969 2.5594e-05 deg
i 3.451753676573691 8.5956e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2383  
   data-arc span      26017 days (71.23 yr)  
   first obs. used      1950-03-21  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4962  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:17:19  

Additional Information
 Jupiter MOID = 1.87426 au 
 T_jup = 3.206 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.426440977118993E-16 -7.78114062600004E-16 -5.005755938604987E-14 -3.616669699471157E-15 -3.003814783308171E-15 1.696382490561893E-15
q -7.78114062600004E-16 2.620358018674045E-15 3.559704028440333E-13 1.166464741541756E-14 2.635017611938421E-14 -4.971568746443772E-15
tp -5.005755938604987E-14 3.559704028440333E-13 2.488121176943823E-9 1.767155537985594E-11 3.152487658015567E-10 2.172610381464011E-12
node -3.616669699471157E-15 1.166464741541756E-14 1.767155537985594E-11 6.123900210660681E-10 -6.107349347345257E-10 1.015014412334095E-11
peri -3.003814783308171E-15 2.635017611938421E-14 3.152487658015567E-10 -6.107349347345257E-10 6.550469489215701E-10 -9.806900374652818E-12
i 1.696382490561893E-15 -4.971568746443772E-15 2.172610381464011E-12 1.015014412334095E-11 -9.806900374652818E-12 7.388507520112269E-13

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 13.21   n/a E2021B10  
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

[ show close-approach data ]
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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