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2615 Saito (1951 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2002615
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513880188952344 3.6702e-08  
a 3.176842552135699 2.0065e-08 au
q 2.695906651825795 1.1276e-07 au
i 4.245959852977947 4.0803e-06 deg
node 322.6292679937654 5.0993e-05 deg
peri 343.5680030897392 5.276e-05 deg
M 30.24430615180258 1.4864e-05 deg
tp 2458426.746689228722
(2018-Nov-04.24668923)
8.4837e-05 TDB
period 2068.197285257674
5.66
1.9594e-05
5.365e-08
d
yr
n .1740646323085895 1.6491e-09 deg/d
Q 3.657778452445602 2.3102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2052  
   data-arc span      24894 days (68.16 yr)  
   first obs. used      1951-09-04  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49124  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:17:41  

Additional Information
 Earth MOID = 1.68054 au 
 Jupiter MOID = 1.59861 au 
 T_jup = 3.178 
[ 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 12.5   n/a MPO319116  
diameter diameter 15.555 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.960 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.088   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2615 Saito (1951 RJ)          Discovered 1951-Sep-04 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1951 RJ = 1955 FC2 = 1967 JS = 1979 OD13 = 1979 QB8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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