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13533 Junili (1991 RJ11)
Classification: Main-belt Asteroid          SPK-ID: 2013533
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117559776437412 6.4528e-08  
a 3.130804938269811 3.3601e-08 AU
q 2.780918771581616 2.0871e-07 AU
i 2.426305480847637 6.6062e-06 deg
node 105.7765871746523 0.00015506 deg
peri 188.2445799920584 0.00015808 deg
M 91.33003031245455 2.8409e-05 deg
tp 2456487.173667533901
(2013-Jul-13.67366753)
0.00015881 JED
period 2023.403244864521
5.54
3.2574e-05
8.918e-08
d
yr
n .1779180699218974 2.8642e-09 deg/d
Q 3.480691104958006 3.7356e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      893  
   data-arc span      8977 days (24.58 yr)  
   first obs. used      1989-02-02  
   last obs. used      2013-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50163  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:40:36  

Additional Information
 Earth MOID = 1.76608 AU 
 T_jup = 3.202 
[ 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 13.6 mag n/a MPO267760  
rotation period rot_per 6. h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

13533 Junili           Discovered 1991 Sept. 4 by E. W. Elst at the European Southern Observatory.
The troika of daughters June (1985), Nina (1987) and Lian (1988) give much joy and enlightenment to their parents, psychologist Theo Geuens and his companion Rita Heirman. They are majoring in sociology, mathematics and childhood education, respectively.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 1991 RJ11 = 1989 CT5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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