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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051043140416438 6.2857e-08  
a 2.244929998105363 1.0924e-08 au
q 1.784485170772454 1.359e-07 au
i 2.528034930139811 4.567e-06 deg
node 63.94653350595617 0.00012643 deg
peri 355.7982186636899 0.00012748 deg
M 101.4935064609018 1.4677e-05 deg
tp 2457254.131500607030
(2015-Aug-19.63150061)
4.9802e-05 JED
period 1228.577710333659
3.36
8.9676e-06
2.455e-08
d
yr
n .2930217575754574 2.1388e-09 deg/d
Q 2.705374825438272 1.3165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1026  
   data-arc span      10987 days (30.08 yr)  
   first obs. used      1986-03-12  
   last obs. used      2016-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:21:41  

Additional Information
 Earth MOID = .795428 au 
 Jupiter MOID = 2.63335 au 
 T_jup = 3.602 
[ 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 15.2 mag n/a MPO365435  

15284 (1991 RZ16)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
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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