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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2108636433521602 7.3701e-08  
a 2.145537011608728 1.0986e-08 AU
q 1.693121260394006 1.5848e-07 AU
i 4.481940198421041 5.6152e-06 deg
node 120.5377086279177 9.6296e-05 deg
peri 214.6999928076812 9.7488e-05 deg
M 88.31276022458171 1.5281e-05 deg
tp 2456518.905997299831
(2013-Aug-14.40599730)
4.8899e-05 JED
period 1147.895736859142
3.14
8.8162e-06
2.414e-08
d
yr
n .3136173333869394 2.4087e-09 deg/d
Q 2.597952762823451 1.3302e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1038  
   data-arc span      8222 days (22.51 yr)  
   first obs. used      1991-08-07  
   last obs. used      2014-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57173  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:22:50  

Additional Information
 Earth MOID = .684176 AU 
 T_jup = 3.677 
[ 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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