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9474 Cassadrury (1998 QK15)
Classification: Main-belt Asteroid          SPK-ID: 2009474
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1847350282380303 1.0085e-07  
a 2.285861459514171 1.3323e-08 AU
q 1.863582778242596 2.2742e-07 AU
i 5.027715731574814 8.3846e-06 deg
node 210.6468294611324 7.2572e-05 deg
peri 155.7447524298438 7.4277e-05 deg
M 171.3258528660819 1.459e-05 deg
tp 2456199.750128580486
(2012-Sep-29.25012858)
5.043e-05 JED
period 1262.331108195762
3.46
1.1036e-05
3.021e-08
d
yr
n .2851866658935029 2.4933e-09 deg/d
Q 2.708140140785747 1.5784e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      11851 days (32.45 yr)  
   first obs. used      1981-10-23  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5489  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:56:44  

Additional Information
 Earth MOID = .862388 AU 
 T_jup = 3.574 
[ 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 14.1 mag n/a MPO263434  

9474 Cassadrury           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Cassa Frances Drury (b. 1999) is a finalist in the 2012 Broadcom MASTERS, a math and science competition for middle-school students, for her biochemistry, medicine, health science and microbiology project. She attends the St. Francis of Assisi, Louisville, Kentucky.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121029/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1998 QK15 = 1981 UD14 = 1981 UE1 = 1988 XG4 = 1997 EG48 = 1997 HB1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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