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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258406281698592 5.2573e-08  
a 2.25761058108016 1.3263e-08 AU
q 1.973511447394112 1.2185e-07 AU
i 2.436677175775904 5.6721e-06 deg
node 232.4633825249616 0.00012555 deg
peri 20.8534206852941 0.00012787 deg
M 3.290869089105285 2.5652e-05 deg
tp 2456989.173908122222
(2014-Nov-27.67390812)
8.8267e-05 JED
period 1239.001906669146
3.39
1.0918e-05
2.989e-08
d
yr
n .2905564535956212 2.5604e-09 deg/d
Q 2.541709714766208 1.4932e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      760  
   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      .56044  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:19:11  

Additional Information
 Earth MOID = .960779 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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