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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1517662154089608 4.3575e-08  
a 3.166365358998635 2.8175e-08 au
q 2.685818071861376 1.372e-07 au
i .0857231719710905 5.6569e-06 deg
node 147.4345674141965 0.0039398 deg
peri 130.4371463843669 0.0039402 deg
M 175.2755670811525 2.4352e-05 deg
tp 2456398.520478821836
(2013-Apr-16.02047882)
0.00013563 JED
period 2057.974386453584
5.63
2.7469e-05
7.521e-08
d
yr
n .1749292908452432 2.3349e-09 deg/d
Q 3.646912646135893 3.2452e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1276  
   data-arc span      11552 days (31.63 yr)  
   first obs. used      1984-04-28  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49638  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:24:30  

Additional Information
 Earth MOID = 1.66781 au 
 Jupiter MOID = 1.47418 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)  
rotation period rot_per 8.7488 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

13536 (1991 RA15)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
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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