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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210912975139762 7.3172e-08  
a 2.146240657261177 1.3581e-08 AU
q 1.693570654872304 1.5831e-07 AU
i 4.482032093089426 5.5339e-06 deg
node 120.5369809072883 8.4807e-05 deg
peri 214.8272309343198 8.589e-05 deg
M 150.8500998904534 1.3074e-05 deg
tp 2456519.262840527362
(2013-Aug-14.76284053)
4.249e-05 JED
period 1148.460475239723
3.14
1.0901e-05
2.985e-08
d
yr
n .3134631167214142 2.9754e-09 deg/d
Q 2.59891065965005 1.6446e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      8571 days (23.47 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54473  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:42:44  

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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