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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049637860429377 6.4104e-08  
a 2.244432889367717 1.6575e-08 AU
q 1.78440542684362 1.41e-07 AU
i 2.5279713616455 6.658e-06 deg
node 63.96388638740277 0.0001598 deg
peri 355.66641703773 0.00016086 deg
M 285.7480600460061 2.0005e-05 deg
tp 2457253.816609776407
(2015-Aug-19.31660978)
6.9824e-05 JED
period 1228.16965558085
3.36
1.3605e-05
3.725e-08
d
yr
n .2931191129532847 3.247e-09 deg/d
Q 2.704460351891814 1.9972e-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 = .79656 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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