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JPL Small-Body Database Browser
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24191 Qiaochuyuan (1999 XK30)
Classification: Main-belt Asteroid          SPK-ID: 2024191
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06227959803740529 4.5698e-08  
a 2.727466562506907 1.526e-08 au
q 2.557601041333513 1.2425e-07 au
i 6.2395833736209 4.2558e-06 deg
node 118.7705289237038 4.795e-05 deg
peri 284.6139336755363 6.0414e-05 deg
M 136.3147850767988 3.6322e-05 deg
tp 2457977.514351869071
0.00016531 TDB
period 1645.271517691786
n .2188088690096925 1.8363e-09 deg/d
Q 2.897332083680301 1.621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1034  
   data-arc span      11786 days (32.27 yr)  
   first obs. used      1987-01-26  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51664  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:15:41  

Additional Information
 Earth MOID = 1.57483 au 
 Jupiter MOID = 2.35033 au 
 T_jup = 3.344 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO435927  
diameter diameter 6.076 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 42.782 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.091   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

24191 Qiaochuyuan           Discovered 1999 Dec. 6 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Qiaochu Yuan (b. 1990) is a finalist in the 2008 Intel Science Talent Search (STS), a science competition for high school seniors, for his mathematics project. He attends the Bellevue High School, Bellevue, Washington.
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

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Alternate Designations
 1999 XK30 = 1987 BT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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