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15283 (1991 RB8)
Classification: Main-belt Asteroid          SPK-ID: 2015283
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219482464384185 4.4509e-08  
a 2.238754193423028 1.3118e-08 AU
q 1.965742045328434 9.9156e-08 AU
i 5.301836260868693 6.3258e-06 deg
node 37.42907132455212 6.1919e-05 deg
peri 58.94420224175243 7.0046e-05 deg
M 260.5552934988514 3.4385e-05 deg
tp 2457338.477053113940
(2015-Nov-11.97705311)
0.00011832 JED
period 1223.511470865603
3.35
1.0753e-05
2.944e-08
d
yr
n .2942350836689004 2.586e-09 deg/d
Q 2.511766341517623 1.4717e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      22921 days (62.75 yr)  
   first obs. used      1951-12-01  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53263  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:04:45  

Additional Information
 Earth MOID = .988263 AU 
 T_jup = 3.621 
[ 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 13.9 mag n/a MPO302160  

15283 (1991 RB8)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar (675)
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RB8 = 1969 AJ = 1998 XM66 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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