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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219537761556713 4.9027e-08  
a 2.238907427916631 1.2387e-08 AU
q 1.965864212619217 1.0818e-07 AU
i 5.301755785717136 8.3435e-06 deg
node 37.43515162073533 6.6147e-05 deg
peri 58.89335935845114 7.6622e-05 deg
M 201.7650020294913 3.848e-05 deg
tp 2457338.339479170847
(2015-Nov-11.83947917)
0.00013198 JED
period 1223.637090307871
3.35
1.0155e-05
2.78e-08
d
yr
n .294204877288758 2.4417e-09 deg/d
Q 2.511950643214046 1.3898e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      996  
   data-arc span      22499 days (61.60 yr)  
   first obs. used      1951-12-01  
   last obs. used      2013-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54995  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 17:58:19  

Additional Information
 Earth MOID = .988056 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 13.8 mag n/a MPO266038  

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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