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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184735029060132 1.0281e-07  
a 2.285861468308151 1.4326e-08 AU
q 1.863582783532808 2.305e-07 AU
i 5.02772139031075 8.1033e-06 deg
node 210.6467921775956 7.3428e-05 deg
peri 155.7447737402114 7.4943e-05 deg
M 171.3258587454108 1.466e-05 deg
tp 2456199.750104498030
(2012-Sep-29.25010450)
5.0199e-05 JED
period 1262.331115480267
3.46
1.1867e-05
3.249e-08
d
yr
n .2851866642477827 2.6809e-09 deg/d
Q 2.708140153083493 1.6972e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      11925 days (32.65 yr)  
   first obs. used      1981-10-23  
   last obs. used      2014-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53585  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:21:51  

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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