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15286 (1991 RJ22)
Classification: Main-belt Asteroid          SPK-ID: 2015286
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2109129788655754 7.3627e-08  
a 2.146240654833683 1.4393e-08 AU
q 1.693570644960308 1.5974e-07 AU
i 4.482032114467351 5.5344e-06 deg
node 120.5369662393981 8.8976e-05 deg
peri 214.8272491054746 9.028e-05 deg
M 150.8500977970425 1.375e-05 deg
tp 2456519.262848022145
(2013-Aug-14.76284802)
4.5124e-05 JED
period 1148.460473291283
3.14
1.1552e-05
3.163e-08
d
yr
n .3134631172532253 3.1531e-09 deg/d
Q 2.598910664707058 1.7428e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      8536 days (23.37 yr)  
   first obs. used      1991-08-07  
   last obs. used      2014-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5484  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:26:52  

Additional Information
 Earth MOID = .686456 AU 
 T_jup = 3.676 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO272713  

15286 (1991 RJ22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RJ22 = 1969 RE2 = 1995 WK42 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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