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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2050362586331026 6.6443e-08  
a 2.24445877067272 1.5275e-08 AU
q 1.784263341677733 1.4658e-07 AU
i 2.528115149282093 7.0161e-06 deg
node 63.96734387851538 0.00016757 deg
peri 355.6552819615478 0.00016871 deg
M 227.1422333405004 1.9951e-05 deg
tp 2457253.763055310202
(2015-Aug-19.26305531)
7.0373e-05 JED
period 1228.190899293619
3.36
1.2538e-05
3.433e-08
d
yr
n .2931140429448307 2.9923e-09 deg/d
Q 2.704654199667708 1.8407e-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      .57593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 17:58:20  

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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