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13315 Hilana (1998 RX71)
Classification: Main-belt Asteroid          SPK-ID: 2013315
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09115138840736137 5.5444e-08  
a 2.430293025293845 1.9867e-08 AU
q 2.208768441801585 1.3664e-07 AU
i 6.856970898593339 8.8264e-06 deg
node 18.54160013578788 4.6697e-05 deg
peri 106.3675570089216 7.1107e-05 deg
M 295.9261067013452 5.6667e-05 deg
tp 2457046.800333867700
(2015-Jan-24.30033387)
0.00021931 JED
period 1383.8416182872
3.79
1.6969e-05
4.646e-08
d
yr
n .2601453773630374 3.1899e-09 deg/d
Q 2.651817608786106 2.1678e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      15992 days (43.78 yr)  
   first obs. used      1970-04-10  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52767  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:36:59  

Additional Information
 Earth MOID = 1.23532 AU 
 T_jup = 3.492 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO270251  

13315 Hilana           Discovered 1998 Sept. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Hilana Megan Lewkowitz-Shpuntoff (b. 1988) is a finalist in the 2002 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, and microbiology project. She attends the Great Neck South Middle School, Great Neck, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021021/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 RX71 = 1970 GR = 1979 SG13 = 1981 EN48 = 1989 GZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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