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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2109129844963824 7.268e-08  
a 2.146240652251767 1.2624e-08 AU
q 1.693570630837884 1.5677e-07 AU
i 4.482032474296425 5.5031e-06 deg
node 120.536998211353 7.8781e-05 deg
peri 214.8272209504904 7.969e-05 deg
M 150.8500956698821 1.2277e-05 deg
tp 2456519.262855676533
(2013-Aug-14.76285568)
3.937e-05 JED
period 1148.460471218895
3.14
1.0133e-05
2.774e-08
d
yr
n .3134631178188672 2.7657e-09 deg/d
Q 2.598910673665649 1.5287e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      8599 days (23.54 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53151  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:41:54  

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
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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