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15284 (1991 RZ16)
Classification: Main-belt Asteroid          SPK-ID: 2015284
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2050362307225728 6.4118e-08  
a 2.244458766552293 1.6509e-08 AU
q 1.784263401046176 1.4107e-07 AU
i 2.528104155867703 6.6584e-06 deg
node 63.96733342065227 0.00015979 deg
peri 355.6552826778013 0.00016085 deg
M 227.1422402158671 1.965e-05 deg
tp 2457253.763030605751
(2015-Aug-19.26303061)
6.9799e-05 JED
period 1228.190895911509
3.36
1.3551e-05
3.71e-08
d
yr
n .2931140437519885 3.234e-09 deg/d
Q 2.70465413205841 1.9894e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      9963 days (27.28 yr)  
   first obs. used      1986-03-12  
   last obs. used      2013-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56917  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 21:15:12  

Additional Information
 Earth MOID = .795737 AU 
 T_jup = 3.603 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO263484  

15284 (1991 RZ16)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RZ16 = 1986 EF3 = 1991 UD5 = 1998 VC31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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