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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1847473690473791 8.5672e-08  
a 2.285897519136234 1.2909e-08 AU
q 1.863583966563884 1.9374e-07 AU
i 5.027743710712899 7.567e-06 deg
node 210.6460610473799 7.0019e-05 deg
peri 155.7172007545956 7.1393e-05 deg
M 228.4025546767683 1.4743e-05 deg
tp 2457461.954110630860
(2016-Mar-14.45411063)
5.3312e-05 JED
period 1262.360978353907
3.46
1.0693e-05
2.928e-08
d
yr
n .2851799177676045 2.4156e-09 deg/d
Q 2.708211071708584 1.5293e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      12289 days (33.65 yr)  
   first obs. used      1981-10-23  
   last obs. used      2015-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5315  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:02:19  

Additional Information
 Earth MOID = .863813 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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