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24274 Alliswheeler (1999 XN167)
Classification: Main-belt Asteroid          SPK-ID: 2024274
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172360758602176 3.9368e-08  
a 2.578916892254025 9.9021e-09 au
q 2.134412820333155 1.0375e-07 au
i 2.97750477583687 4.2205e-06 deg
node 355.3049626031434 6.6905e-05 deg
peri 353.7147323740389 6.7723e-05 deg
M 91.39243186289872 1.01e-05 deg
tp 2458816.472628258335
(2019-Nov-28.97262826)
4.1906e-05 TDB
period 1512.705713251984
4.14
8.7124e-06
2.385e-08
d
yr
n .2379841609945925 1.3707e-09 deg/d
Q 3.023420964174895 1.1609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1477  
   data-arc span      14022 days (38.39 yr)  
   first obs. used      1982-09-16  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50923  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:38:51  

Additional Information
 Earth MOID = 1.12635 au 
 Jupiter MOID = 2.3979 au 
 T_jup = 3.403 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.85   n/a MPCxxxxx  
diameter diameter 3.142 km 0.831 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.236   0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24274 Alliswheeler           Discovered 1999 Dec. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Allison Wheeler mentored a finalist in the 2008 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Bronx High School of Science, Bronx, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080221/MPCPages.arcLast Updated: 2008-03-05

Alternate Designations
 1999 XN167 = 1982 SJ6 = 1982 UM3 = 1986 OR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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