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13281 Aliciahall (1998 QW45)
Classification: Main-belt Asteroid          SPK-ID: 2013281
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .125747896711304 5.2623e-08  
a 2.257414630993282 1.331e-08 AU
q 1.973549489140552 1.2193e-07 AU
i 2.436752803065994 5.6833e-06 deg
node 232.46425584166 0.00012555 deg
peri 20.84921315937604 0.00012788 deg
M 305.1737578946613 2.5578e-05 deg
tp 2456989.169374188845
(2014-Nov-27.66937419)
8.8311e-05 JED
period 1238.840600774467
3.39
1.0956e-05
3e-08
d
yr
n .290594286121188 2.57e-09 deg/d
Q 2.541279772846012 1.4983e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      13570 days (37.15 yr)  
   first obs. used      1977-04-24  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56846  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:30:09  

Additional Information
 Earth MOID = .959134 AU 
 T_jup = 3.611 
[ 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 15.0 mag n/a PDS3 (MPC 37562)  

13281 Aliciahall           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Alicia Esther Hall (b. 1988) is a finalist in the 2002 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her botany and zoology project. She attends the Valley High School, Hoople, North Dakota.
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 QW45 = 1977 HE1 = 1994 JC3 = 1997 ED44 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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