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16669 Rionuevo (1993 XK3)
Classification: Inner Main-belt Asteroid          SPK-ID: 2016669
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08484623725894494 1.3252e-08  
a 1.93386646820616 4.7251e-09 au
q 1.769785175017623 2.4017e-08 au
i 24.59633828398702 1.0323e-06 deg
node 67.53065348762505 2.2907e-06 deg
peri 329.3347994674905 7.9844e-06 deg
M 137.6106657423943 8.7926e-06 deg
tp 2459021.019189446834
2.3652e-05 TDB
period 982.2864461115407
n .366491873551843 1.3432e-09 deg/d
Q 2.097947761394698 5.1261e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2111  
   data-arc span      14138 days (38.71 yr)  
   first obs. used      1982-10-17  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38413  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:14:42  

Additional Information
 Earth MOID = .796619 au 
 Jupiter MOID = 3.2419 au 
 T_jup = 3.795 
[ 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 14.61   n/a MPCxxxxx  
diameter diameter 3.975 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.953 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2010) Minor Planet Bull. 37, 57-64.]
[Warner, B.D. (2013) Minor Planet Bull. 40, 137-145.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 227-233.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.309   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

16669 Rionuevo           Discovered 1993 Dec. 8 by C. S. Shoemaker and D. H. Levy at Palomar.
In an effort to understand its history stretching back at least 2500 years, Tucson's Rio Nuevo project is preserving and developing the city's heritage. With help from the University of Arizona, the site will benefit all students of the history of the American Southwest.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1993 XK3 = 1999 AF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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