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13536 (1991 RA15)
Classification: Main-belt Asteroid          SPK-ID: 2013536
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518960429589209 5.8561e-08  
a 3.168871794515157 3.8696e-08 AU
q 2.68753270828417 1.9763e-07 AU
i .08567113407882922 7.3033e-06 deg
node 147.2716674304208 0.00462 deg
peri 130.9189613896206 0.0046207 deg
M .09761983379179452 3.4568e-05 deg
tp 2456399.941284147995
(2013-Apr-17.44128415)		 0.00019784 JED
period 2060.418450934975
5.64		 3.7741e-05
1.033e-07		 d
yr
n .1747217900502878 3.2004e-09 deg/d
Q 3.650210880746144 4.4574e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      10562 days (28.92 yr)  
   first obs. used      1984-04-28  
   last obs. used      2013-03-29  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .53055  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:52:48  

Additional Information
 Earth MOID = 1.67123 AU 
 T_jup = 3.185 
[ 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 13.1 mag n/a PDS3 (MPC 38326)  

13536 (1991 RA15)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RA15 = 1984 HQ1 = 1989 EM9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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